JP2013139312A - Tape cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape cutter capable of automatically forming a knob part even though a user does not push a movable part by hand.SOLUTION: A tape cutter 10 has a movable part 31 moving so as to approach or separate from the fixing part where a tape adhering part 23 is formed, a knob part where adhering faces themselves are affixed is formed in the tape front end part present between the tape adhering part 23 and a cutting blade 33 by making the movable part 31 approach the fixing part. Further, the tape cutter 10 has a first moving structure part moving the movable part 31 to a side separating from the fixing part in the case an adhesive tape is dispensed from an adhesive tape roll 13 while bringing the movable part 31 closer to the fixing part and a second moving structure part moving the movable part 31 to a side coming closer to the fixing part in the case the adhesive tape is cut by the cutting blade 33.

Description

  The present invention relates to a tape cutter.

  As the tape cutter, a tape holder that supports an annular adhesive tape roll from the inner peripheral side, a main body that rotatably supports the tape holder, a cutting blade that is provided on the main body and cuts the adhesive tape, The one provided with is generally. However, since the entire area of one surface of the tape piece cut by the tape cutter is an adhesive surface, it is not easy to peel off the tape piece attached to a predetermined object.

  Therefore, it is conceivable to form a non-adhesive knob by folding one end of the tape piece to the adhesive surface side and bonding the adhesive surfaces together so that the attached tape piece can be easily peeled off. ing. Various tape cutters have been proposed so that such a knob can be easily formed (see, for example, Patent Documents 1 to 3).

  This type of tape cutter has the same basic structure. That is, a fixed part fixed to the main body part to which the adhesive tape fed out from the adhesive tape roll is bonded, and a movable part disposed closer to the tape holder side than the fixed part and movable toward and away from the fixed part And a section. The movable part is arranged at a position away from the fixed part to the side opposite to the tape holder when no external force is applied. The movable part is provided with a cutting blade.

  In such a tape cutter, an adhesive tape can be bonded to the fixed part, and the tape piece can be cut by the cutting blade of the movable part. Further, when the movable part is pushed by hand after cutting the tape piece and moved to the fixed part side, the adhesive surfaces are bonded to each other at the part between the fixed part and the movable part of the adhesive tape, and the knob part is formed. . If this knob | pick part is picked with a finger | toe and the adhesive tape is cut | disconnected again, the tape piece in which the knob | pick part was formed will be obtained.

JP 2006-290531 A JP-A-3-238265 JP-A-9-202513

  However, in the tape cutter capable of forming the knob as described above, since the movable part having the cutting blade is arranged at a position separated from the fixed part, the movable part is next cut when the tape piece is cut. It is necessary to push the by hand. For this reason, when the tape piece is frequently cut, the work is troublesome. Further, if the user forgets to press the movable part with his / her hand, the pick part is not formed on the tape piece.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a tape cutter that can automatically form a knob without the user pressing the movable part by hand.

In order to achieve the above object, in the tape cutter of the first invention,
A tape holder that supports an annular adhesive tape roll from the inner periphery side;
A main body that rotatably supports the tape holder;
A fixing portion provided on the main body, and formed with an adhesive portion to which the adhesive tape fed from the adhesive tape roll is bonded;
A cutting blade for cutting the adhesive tape is provided on the side opposite the tape holder from the fixed part, and a movable part that moves so as to be able to approach and separate from the fixed part,
With
A tape cutter in which a grip portion in which adhesive surfaces are bonded to each other is formed at a tape front end portion between the adhesive portion and the cutting blade by bringing the movable portion closer to the fixed portion,
A first moving structure that moves the movable part to a side away from the fixed part when the adhesive tape is fed out from the adhesive tape roll in a state where the movable part is brought close to the fixed part;
When the adhesive tape is cut by the cutting blade, the second moving structure part that moves the movable part to the side closer to the fixed part;
It is characterized by having.

  The tape cutter having the above configuration includes the first moving structure portion and the second moving structure portion, and the user moves the movable portion to the fixed portion during a series of operations for cutting the adhesive tape (tape piece) from the adhesive tape roll. There is no need to work closer to or away from the (main body part) side, and such moving parts are moved by each moving structure part. That is, when the pressure-sensitive adhesive tape is fed out from the pressure-sensitive adhesive tape roll, the movable portion is separated from the fixed portion by the action of the first moving structure portion, so that a gap for forming the knob portion is formed, and the pressure-sensitive adhesive tape is cut in the space formation state. . When the adhesive tape is cut, the knob is automatically formed as the movable part approaches the fixed part by the action of the second moving structure part. In this case, after the tape is cut, the movable part automatically returns to the side approaching the fixed part, and in the subsequent tape cutting operation, the user simply picks the knob and feeds and cuts the adhesive tape. . Therefore, since the knob can be automatically formed without the user pressing the movable part by hand, the operability at the time of cutting the tape can be improved.

  In the second invention, the tape holder is movable from an initial position, which is a position in the tape non-feeding state in the main body, to a tape feeding position closer to the cutting blade than the initial position, and has a holder. When the tape holder is biased to the side opposite to the cutting blade by the biasing means, and the tape holder moves from the initial position to the tape feeding position against the biasing force of the holder biasing means. The movable portion is moved away from the fixed portion, and the second moving structure portion is configured such that the tape holder returns from the tape feeding position to the initial position by the urging force of the holder urging means. Furthermore, the movable part is moved to a side closer to the fixed part.

  In the above configuration, the tape holder is movable between the initial position and the tape feeding position, and when the tape end is pulled by the user when the adhesive tape is fed, the tape holder moves to the tape feeding position, and further the movable part. Moves to the side away from the fixed part. Further, after the adhesive tape is cut, the tape holder returns to the initial position by the biasing force of the holder biasing means. In this case, the movable portion is adapted to follow the movement of the tape holder, and the tape holder advances when the user feeds the adhesive tape from the adhesive tape roll (movement toward the cutting blade). By making good use of the tape holder's backward movement (movement toward the non-cutting blade) after cutting the tape, automatic creation of the knob can be realized.

  In a third aspect of the invention, the first moving structure portion is provided so as to be integrally rotatable with the tape holder, the rotating portion having a circular outer periphery coaxial with the shaft portion of the tape holder, and the tape holder An actuating member that contacts the outer periphery of the rotating part and operates by the rotational force of the rotating part when moved to the tape feeding position, and the movable part is fixed when the operating member is actuated. It moves to the side away from the part. Further, the second moving structure portion is a side that brings the movable portion closer to the fixed portion when the contact between the rotating portion and the actuating member is released as the tape holder returns to the initial position. A restoring means for moving to

  According to the above configuration, when the tape holder is moved to the tape feeding position, the outer peripheral portion of the rotating portion and the operating member are in contact with each other. When the adhesive tape is further fed and the rotating portion rotates, the rotating portion rotates. The actuating member is actuated by force. By the operation of the operating member, the movable part is separated from the fixed part. When the tape holder returns to the initial position, the contact between the rotating part and the actuating member is released, and the movable part moves (returns) closer to the fixed part by the restoring means.

  In this case, when the user feeds the adhesive tape, the feeding force is transmitted to the operating member through the rotating portion, and the movable portion can be separated from the fixed portion. In addition, after the adhesive tape is cut, the movable part can be returned to the position approaching the fixed part without being restricted by the tape holder by the tape holder retracting and releasing the contact between the rotating part and the actuating member. .

  According to a fourth aspect of the present invention, in the first moving structure portion, the rotating portion is a holder-side gear provided integrally with the tape holder and having external teeth on an outer peripheral portion, and the operating member is disposed on the main body portion. A main body side gear which is provided with a shaft portion fixed and meshes with an external tooth of the holder side gear when the tape holder moves to the tape feeding position, and a first when the movable portion approaches the fixed portion When the adhesive tape is fed out in a meshed state between the holder-side gear and the body-side gear, the state can be shifted between the state and the second state when the movable part is separated from the fixed part. A state transition member that transitions from the first state to the second state by rotation of the gear. Further, in the second moving structure portion, the restoring means moves the state when the engagement between the holder side gear and the main body side gear is released as the tape holder returns to the initial position. The member is returned from the second state to the first state, and the movable part is moved to the side closer to the fixed part.

  According to the above configuration, when the tape holder is moved to the tape feeding position, the holder side gear and the main body side gear are engaged with each other, and when the adhesive tape is further fed and the main body side gear is rotated, the state transition member is moved to the first state. The movable part moves away from the fixed part by shifting from the state to the second state. Further, when the tape holder returns to the initial position, the engagement between the holder side gear and the main body side gear is released, and the state transition member returns from the second state to the first state by the restoring means, and the movable part approaches the fixed part. Move to the side.

  In this case, when the user feeds the adhesive tape, the feeding force (rotational force) is transmitted to the state transition member through each gear, and the movable part can be separated from the fixed part. In addition, the adhesive tape roll has a tape feeding direction limited to one rotation direction and cannot be reversely rotated (rotation opposite to the tape feeding direction), but the tape holder is retracted and the engagement of both gears is released. Thus, reverse rotation of each gear is allowed. Thereby, a movable part can be returned to the position which approaches a fixed part.

  In the fourth aspect of the invention, the state transition member is a rack that meshes with the main body side gear and moves in the rack longitudinal direction as the main body side gear rotates. It is preferable that the state shifts between the first state and the second state by moving in the longitudinal direction of the rack as the gear rotates. According to such a configuration, the rotation operation of the tape holder is converted into the linear motion of the rack, and a convenient configuration can be realized in pushing out and pulling the movable portion against the fixed portion.

  If the rack tooth formation range is limited to a part in the rack longitudinal direction, the rack moves forward and backward with the rotation of the main body side gear only within the rack tooth formation range. For this reason, even when the rotation of the tape holder (and thus the rotation of the main body side gear) is prolonged when a relatively long tape piece is acquired, the rack is not moved excessively and the separation position of the movable portion is constant every time.

  In the fourth aspect of the invention, the state transition member is a rod member that moves up and down with rotation of the main body side gear and is held in the first state by a weight member, and the rod member is the main body. It is preferable that the second member is shifted to the second state against the gravity of the weight member as the side gear rotates. According to such a configuration, by using the load of the weight member, it is possible to automatically form the knob portion without the user pressing the movable portion by hand as described above.

  In a fifth aspect of the present invention, in the first moving structure portion, the actuating member is rotatably supported by the main body portion, and when the tape holder is moved to the tape feeding position on one end side. The lever member has a rotational force transmitting portion that contacts the outer peripheral portion of the rotating portion and transmits the rotational force of the rotating portion, and has a pressing portion that presses the movable portion on the other end side. Further, in the second moving structure portion, when the tape holder returns to the initial position, the restoring means returns the lever member to a position before transmission of the rotational force, and fixes the movable portion to the fixed position. Move it closer to the part.

  According to the above configuration, when the tape holder moves to the tape feeding position, the rotational force of the rotating portion is transmitted to the rotational force transmitting portion of the lever member. And if a lever member rotates by transmission of the rotational force, a press part will press a movable part and a movable part will space apart from a fixed part. When the tape holder returns to the initial position, the lever member returns to the position before the rotational force is transmitted by the restoring means, and the movable part moves to the side closer to the fixed part. In this case, when the user feeds the adhesive tape, the feeding force (rotational force) is transmitted to the movable part through the lever member, and the movable part can be separated from the fixed part.

The figure which shows the whole structure of a tape cutter. The figure which shows the internal structure of a tape cutter. The figure which shows the structure of a tape holder. The figure which expands and shows the structure of the tape cutting part of a tape cutter. The perspective view which shows the structure of a tape adhesion part and a support pin. The figure for demonstrating a series of tape cutting operation. The figure which shows the whole structure of the tape cutter in 2nd Embodiment. The figure which shows the whole structure of the tape cutter in 3rd Embodiment.

[First Embodiment]
The tape cutter according to the first embodiment will be described. The tape cutter according to the present embodiment includes a cutting function for cutting the adhesive tape in accordance with a user's tape cutting operation, and a knob forming function for automatically forming a loop-shaped tape knob at the end of the tape after the cutting. Is. 1A and 1B are diagrams showing an overall configuration of the tape cutter 10, wherein FIG. 1A is a front view, FIG. 1B is a side view, and FIG. 1C is a plan view. FIG. 2 is a view showing the internal structure of the tape cutter 10, and FIGS. 2A and 2B show a state where the tape holder 12 is in two different positions. FIG. 3 is a diagram showing the configuration of the tape holder 12. In this embodiment, for convenience of explanation, in the state shown in FIG. 1A and FIG. 2, the right side is referred to as the tape cutter front side, and the left side is referred to as the tape cutter rear side.

  The tape cutter 10 includes a main body portion 11 having a tape mounting portion S opened upward, and an annular adhesive tape roll held in a tape holder 12 on the tape mounting portion S of the main body portion 11. 13 is detachably mounted. The main body portion 11 has a pair of side wall portions 14 on both sides of the tape mounting portion S, and the tape holder 12 is rotatably supported between the both side wall portions 14.

  As shown in FIG. 3, the tape holder 12 has a disc-shaped holder main body 16 into which the inner peripheral portion of the adhesive tape roll 13 is fitted, and a rotating shaft 17 provided in a protruding state at the center of the holder main body 16. doing. An annular width adjusting member 18 that adjusts the attachment position of the adhesive tape roll 13 in the width direction of the holder main body 16 is provided on the outer peripheral portion of the holder main body 16. The width adjusting member 18 is slidable in the thickness direction of the holder body 16, and even if the adhesive tape roll 13 having a different tape width is attached to the holder body 16 by sliding the width adjusting member 18, the holder body The center of 16 width direction and the center of the width direction of the adhesive tape roll 13 can be made to correspond now. In addition, the width adjusting member 18 may be a protrusion provided at one or a plurality of locations on the outer peripheral surface of the holder body 16 other than the annular shape.

  As shown in FIGS. 1 and 2, a bearing groove 21 that rotatably supports the rotating shaft 17 of the tape holder 12 is formed inside each of the pair of side wall portions 14 in the main body portion 11. The bearing groove 21 has a vertical groove portion 21a extending in the vertical direction in each side wall portion 14, and a horizontal groove portion 21b extending from the vertical groove portion 21a toward the tape cutter front side (tape adhesive portion 23 side described later), In the horizontal groove portion 21b, a portion near the vertical groove portion 21a is an inclined groove portion extending in an oblique direction. The longitudinal groove portion 21a serves as an attachment / detachment passage for attaching / detaching the tape holder 12, and the lateral groove portion 21b moves the tape holder 12 in the longitudinal direction of the tape cutter and the obliquely downward direction in a state of being attached to the main body portion 11. This is a holder moving path.

  The main body 11 is provided with a tension spring 22 that tensions the tape holder 12 toward the rear side of the tape cutter. The tension spring 22 plays a role of holding the tape holder 12 at a predetermined position of the main body 11. Specifically, the tension spring 22 holds the rotating shaft 17 of the tape holder 12 at the lower end position of the vertical groove portion 21 a of the bearing groove 21. (See FIG. 2 (a)). This holding position corresponds to an initial position which is a position when the tape is not fed out. One end of the tension spring 22 is connected to the inside of the side wall portion 14, and the other end is connected to the rotating shaft 17 of the tape holder 12. The connecting position of the tension spring 22 on the main body 11 side is on the rear side of the tape cutter with respect to the bearing groove 21 and is at the same height as the lower end of the vertical groove portion 21 a of the bearing groove 21. As a means for connecting the tension spring 22 and the rotary shaft 17 of the tape holder 12, for example, a hook portion is provided at the end of the tension spring 22, and the hook portion is attached when the tape holder 12 is attached to the main body 11. It is preferable to be hooked on the rotating shaft 17.

  In the main body portion 11, a tape bonding portion 23 to which an end portion of the pressure-sensitive adhesive tape fed out from the pressure-sensitive adhesive tape roll 13 is bonded is provided at the upper corner portion on the front side of the tape cutter. The tape bonding portion 23 is made of, for example, a flat plate material, and is provided in a vertical direction so as to span the side wall portions 14, and an upper end surface thereof is a tape bonding surface.

  An opening 25 extending in the vertical direction is provided on the end surface portion on the front side of the tape cutter in the main body 11, and a movable portion 31 movable in the approaching and separating direction with respect to the main body 11 is provided in the opening 25. Is provided. The movable portion 31 has a long plate shape that is the same shape as the opening portion 25, and is rotatable with respect to the main body portion 11 by a shaft portion 32 provided at the lower end portion thereof. A cutting blade 33 for cutting the adhesive tape is provided at the upper end of the movable portion 31. The movable part 31 rotates around the shaft part 32, so that the cutting blade 33 approaches the tape bonding part 23 on the main body part 11 side (the position shown in FIG. 2A) and the cutting blade 33. It moves at a separation position (position shown in FIG. 2B) away from the tape bonding portion 23.

  In the tape cutter 10, the portion of the main body 11 where the tape bonding portion 23 is provided is a fixed portion, and the movable portion 31 moves to a side closer to or away from the fixed portion.

  Further, in the vicinity of the tape bonding portion 23, the adhesive tape existing between the tape bonding portion 23 and the cutting blade 33 hangs down in a state where the movable portion 31 is moved away from the main body portion 11. A support pin 35 is provided to prevent (drooping). The lower support pin 35 is made of, for example, a thin metal wire having a predetermined elasticity, and one end of the support pin 35 is connected to the movable portion 31 so that it can be displaced in the longitudinal direction of the tape cutter in conjunction with the movable portion 31. .

  More specifically, as shown in FIG. 4, the lower support pin 35 has a shape that is folded back into a substantially U shape, and is an end portion (free end portion) opposite to the connecting end portion on the movable portion 31 side. Is provided with a pin tip 35a bent upward. The lower support pin 35 is provided at the center position in the width direction of the tape cutter 10 (see FIGS. 1B and 1C). Further, when the movable portion 31 is in the separated position, the pin tip portion 35a is located at the approximate center between the tape bonding portion 23 and the cutting blade 33, and is in point contact with the adhesive surface of the adhesive tape 13a between them. In addition, the pressure-sensitive adhesive tape 13a is pushed upward so that the pressure-sensitive adhesive tape 13a has a slightly mountain shape (see FIG. 4A). In this case, the upper end of the pin tip portion 35a is located on or slightly above the straight line connecting the tape bonding portion 23 and the cutting blade 33. The upper end of the pin tip 35a is preferably tapered to improve the peelability from the adhesive surface of the adhesive tape 13a, and is preferably rounded into a spherical shape so as not to damage the adhesive tape 13a. .

  Here, as shown in FIG. 5, a slit groove 23a extending in the vertical direction is formed in the tape bonding portion 23, and a supporting pin 35 is inserted into the slit groove 23a, and the pin tip portion 35a is a tape cutter. It has come out to the front side. In this case, since the upward movement of the lower support pin 35 is restricted by the upper surface of the slit groove 23a, the vertical position of the pin tip portion 35a, that is, the pin upper end position is fixed. Therefore, for example, the pin tip portion 35a is excessively raised upward, so that the adhesive tape 13a is hardly damaged.

  When the movable portion 31 approaches the main body 11 from the state of FIG. 4A, the adhesive tape 13a between the tape bonding portion 23 and the cutting blade 33 is curved upward as shown in FIG. 4B. As a result, a loop-shaped knob L is formed. At this time, since the adhesive tape 13a is pushed upward by the support pins 35 as described above, the knob portion L is formed upward. That is, the knob L is formed on the adhesive tape 13a with the adhesive surfaces facing each other. After the knob L is formed at the end of the adhesive tape 13a in this way, the user can further pull out the adhesive tape 13a from the adhesive tape roll 13 by pulling the knob L with a finger. In view of the above action, it can be said that the support pin 35 is an assist means for assisting the formation of the knob portion extending upward.

  Further, when the height position of the upper surface (tape bonding surface) of the tape bonding portion 23 is compared with the height position of the cutting blade 33 (specifically, the tape bonding position in the cutting blade 33), the latter is in a lower position. Therefore, the knob portion L is formed to be inclined toward the front of the tape cutter. Therefore, there is an effect that the user can easily pick the knob L when the user picks the knob L with a finger. For example, assuming that the user puts the tape cutter 10 in front of his / her body and performs the tape cutting operation with the right hand, the user's right hand is on the right side of the tape cutter 10, and in the above configuration, the tape cutting with the right hand is performed. The operation can be easily performed.

  The lower support pin 35 moves to the rear side of the tape cutter as the movable portion 31 approaches the main body portion 11. At this time, the pin tip portion 35a is displaced to the rear side of the tape cutter while being tilted. Therefore, the pin tip portion 35a is easily separated from the adhesive surface of the adhesive tape 13a.

  In particular, the tape cutter 10 of the present embodiment is provided with a moving mechanism for moving the movable portion 31 in the longitudinal direction of the tape cutter (proximity and separation direction) with respect to the main body 11, and the moving mechanism will be described below. This moving mechanism is a first moving structure that moves the movable part 31 to the side away from the main body part 11 when the adhesive tape 13a is fed from the adhesive tape roll 13 with the movable part 31 being brought close to the main body part 11. And a second moving structure that moves the movable portion 31 to the side closer to the main body 11 when the adhesive tape 13a is cut by the cutting blade 33, and a specific configuration thereof will be described. To do.

  As shown in FIGS. 1 and 2, in the main body portion 11, one of the side wall portions 14 has a movable portion pushing mechanism having a main body side gear 41 and a rack 42 on the inner side thereof. Is provided. In this case, the main body side gear 41 is provided vertically on the side of the tape holder 12 and is rotatable about the fixed shaft 43. External teeth 41 a are formed on the outer peripheral portion of the main body side gear 41. The rack 42 is provided in a direction extending in the longitudinal direction of the tape cutter, and is movable in the longitudinal direction of the tape cutter while being supported by a pair of left and right support portions 44a and 44b provided in the side wall portion 14. . The rack 42 has rack teeth 42 a on the side facing the main body side gear 41 (upper side in this embodiment), and the rack teeth 42 a mesh with the external teeth 41 a of the main body side gear 41.

  The rack 42 moves to the front of the tape cutter in the state shown in FIG. 2A, that is, the tape non-feeding state, and pushes the movable portion 31 to the front of the tape cutter at its tip. The state shown in FIG. 2A is the first state of the rack 42, and the state shown in FIG. 2B is the second state of the rack 42. Further, a spring receiver 45 is attached to the rack 42 in front of the tape cutter with respect to the rack teeth 42a, and a compression spring 46 is mounted between the spring receiver 45 and the support portion 44b. Therefore, when the rack 42 is displaced from the initial position shown in FIG. 2A to the operating position shown in FIG. 2B, a spring biasing force is applied to the rack 42 so as to return to the initial position. Yes.

  In addition, the main body 11 is provided with a tension spring 47 that pulls and biases the movable portion 31 in the direction in which the movable portion 31 approaches the main body 11. Therefore, when the movable portion 31 is displaced from the proximity position shown in FIG. 2A to the separation position shown in FIG. 2B, a spring biasing force is applied to the movable portion 31 so as to return to the proximity position. It has become.

  According to the movable part push-out mechanism configured as described above, the rack 42 moves in either the left or right direction as the main body side gear 41 rotates. In this case, the rack tooth formation range (A shown in FIG. 2A) of the rack 42 is limited to a part in the rack longitudinal direction, that is, the region where the rack 42 meshes with the main body side gear 41 is limited. Yes. Therefore, when the rack 42 moves from the initial position to the front of the tape cutter and reaches the position shown in FIG. 2B, the main body side gear 41 and the rack 42 do not mesh with each other, and the rack 42 moves further forward of the tape cutter. Is impossible.

  On the other hand, the tape holder 12 is provided with a holder side gear 49 that can mesh with the main body side gear 41. The holder side gear 49 is provided coaxially with the rotating shaft 17 of the tape holder 12. Here, when the tape holder 12 is in the initial position, that is, when the rotating shaft 17 of the tape holder 12 is positioned in the longitudinal groove portion 21a of the bearing groove 21, both the gears 41 and 49 are not engaged with each other (see FIG. 2 (a)), when the tape holder 12 moves to the front side of the tape cutter, that is, when the rotating shaft 17 of the tape holder 12 enters the lateral groove portion 21b of the bearing groove 21, both the gears 41 and 49 are engaged with each other. (State shown in FIG. 2B). In this engaged state, as the tape holder 12 rotates, the rotational force is transmitted through the gear teeth, and both the gears 41 and 49 rotate in different directions, and at the same time, the rack 42 moves linearly to move. The part 31 will be displaced.

  In the bearing groove 21, the inclined groove portion provided in the lateral groove portion 21 b extends on a line connecting the center of the holder side gear 49 and the center of the main body side gear 41. In other words, the lateral groove portion 21 b 49 is a guide passage that guides 49 toward the main body side gear 41.

  The holder side gear 49 and the main body side gear 41 have different numbers of teeth, and in this embodiment, “the number of teeth of the holder side gear 49 <the number of teeth of the main body side gear 41”. Thereby, when the adhesive tape 13 a is fed out from the adhesive tape roll 13, the rotation of the main body side gear 41 is decelerated with respect to the rotation of the holder side gear 49. Therefore, it is possible to suppress the inconvenience that the moving operation of the movable portion 31 becomes slow during the tape feeding operation and the movable portion 31 hits the user's hand due to the sudden movement of the movable portion 31.

  Next, a series of tape cutting operations in the tape cutter 10 will be described with reference to FIG. Here, it is assumed that the tape cutter 10 is in each of the order of (a) → (b) → (c) → (a) in accordance with a predetermined tape cutting operation by the user. The state where the knob portion L is formed is assumed.

  First, in the state of FIG. 6A, the tape holder 12 is in an initial position (tape non-feeding position), and the holder side gear 49 and the main body side gear 41 are in a non-engagement state. From this state, when the user picks the knob L with his finger and peels the adhesive tape 13a from the tape adhesive 23 and pulls it forward of the tape cutter, the tape holder 12 is moved to the front side of the tape cutter against the urging force of the tension spring 22. Move to. That is, as shown in FIG. 6B, the rotation shaft 17 of the tape holder 12 moves along the bearing groove 21 of the main body 11, and the holder side gear 49 and the main body side gear 41 are brought into meshing state.

  Then, as the user further pulls the adhesive tape 13 a forward of the tape cutter, the adhesive tape 13 a is fed out from the adhesive tape roll 13. At this time, since the tape holder 12 rotates in the clockwise direction in the drawing, the holder side gear 49 rotates in the clockwise direction, the main body side gear 41 rotates in the counterclockwise direction, and the rack 42 moves in front of the tape cutter. To do. Thereby, the movable part 31 is inclined so as to fall forward of the tape cutter, and the tape bonding part 23 on the main body part 11 side and the cutting blade 33 on the movable part 31 side are separated from each other.

  Then, as shown in FIG. 6C, the adhesive tape 13a is cut by pressing the adhesive tape 13a against the cutting blade 33 in a state where the tape bonding portion 23 and the cutting blade 33 are separated from each other. Thereby, the tape piece 13b in which the knob | pick part L was formed is obtained.

  After the tape is cut, the tip of the adhesive tape 13a is bonded to the two positions of the tape bonding portion 23 and the cutting blade 33 in the tape cutter 10, and as shown in FIG. By returning to the side closer to the main body 11, the knob L is formed again at the tip of the adhesive tape 13 a. Thereafter, similarly, each time the user performs a tape cutting operation, the tape cutter 10 operates in the order of (a) → (b) → (c).

  A supplementary explanation will be given of the operation when the tape cutter 10 returns from the state of FIG. 6C to the state of FIG. After the adhesive tape 13a is cut, in the state of FIG. 6C, the urging force that pulls the tape holder 12 toward the rear side of the tape cutter by the tension spring 22, that is, the tape holder 12 is returned to the initial position. An urging force is applied, and the tape holder 12 is returned to the initial position by the urging force. At this time, in particular, the front end side of the adhesive tape 13a remains adhered to the tape adhesive portion 23. However, when the adhesive tape 13a is partly peeled off from the adhesive tape roll 13, the tape holder 12 is attached to the rear side of the tape cutter. Is allowed to move.

  In addition, in the state of FIG.6 (c), the tension spring 22 is an expansion | extension state, and the spring biasing force is increasing compared with the state of Fig.6 (a). Therefore, it is convenient to move the tape holder 12 to the rear side of the tape cutter by the spring biasing force of the tension spring 22 against the adhesive force between the adhesive tapes in the adhesive tape roll 13. In this case, the tape holder 12 moves backward (moves to the side opposite to the cutting blade) while part of the adhesive tape 13a is peeled off from the adhesive tape roll 13. Therefore, the automatic return to the initial position of the tape holder 12 can be suitably realized.

  In the state of FIG. 6C, the compression spring 46 applies an urging force for returning to the initial position with respect to the rack 42, and the tension spring 47 returns to the proximity position with respect to the movable portion 31. A direction biasing force is applied. Therefore, when the tape holder 12 moves backward and the meshing between the holder side gear 49 and the main body side gear 41 is released, and the reverse rotation of the main body side gear 41 is allowed, the rack 42 is moved to the rear side of the tape cutter. It is displaced to. Thereby, the movable part 31 automatically returns to the side approaching the main body part 11.

  The knob L is not formed immediately after the adhesive tape roll 13 is attached to the tape cutter 10 (for example, immediately after the new tape is attached), but the leading end portion of the adhesive tape 13a is peeled off from the adhesive tape roll 13 for feeding operation. If it performs, it will be in the state of FIG.6 (b), and will be in each state in order of (b)-> (c)-> (a) as above-mentioned with a series of tape cutting operation after that.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  In the tape cutter 10 having the above-described configuration, the user does not have to work to move the movable unit 31 closer to or away from the main body 11 during a series of tape cutting operations. Is done by. Therefore, since the knob portion L can be automatically formed without the user pressing the movable portion 31 by hand, the operability at the time of cutting the tape can be improved.

  When the tape holder 12 is movable from the initial position to the tape feeding position and the end of the tape is pulled by the user during the tape feeding, the tape holder 12 moves to the tape feeding position, and the movable portion 31 is moved from the main body 11. Move to the side that separates. Further, after the tape is cut, the tape holder 12 is returned to the initial position by the urging force of the tension spring 22, and the movable portion 31 moves following the movement of the tape holder 12. In this case, the tape holder 12 is moved forward (moving toward the cutting blade) when the adhesive tape is fed and the tape holder 12 is retracted (moving toward the non-cutting blade) after cutting the tape. Automatic creation of the knob can be realized.

  When the user feeds the adhesive tape, the feeding force is transmitted to the rack 42 through the gears 41 and 49, so that the movable part 31 can be separated from the main body part 11. The adhesive tape roll 13 is limited to one direction of tape feeding and cannot be rotated in the reverse direction (rotation opposite to the tape feeding direction). However, the tape holder 12 moves backward and the gears 41 and 49 are engaged. Is released, the reverse rotation of the gears 41 and 49 is allowed. Thereby, the movable part 31 can be returned to the position approaching the main body part 11.

  Since the formation range of the rack teeth 42a is limited to a part in the longitudinal direction of the rack 42, the rack 42 moves forward and backward with the rotation of the main body side gear 41 only within the formation range of the rack teeth 42a. Therefore, even when the rotation of the tape holder 12 (and consequently the rotation of the main body side gear 41) is prolonged when a relatively long tape piece is acquired, the rack 42 does not move excessively and the separation position of the movable portion 31 is changed every time. It becomes constant.

  Further, since the support pin 35 is provided in the movable portion 31 and the support pin 35 is moved in accordance with the movement of the movable portion 31, the tape bonding portion 23 is provided when the movable portion 31 is located away from the main body portion 11. The support pin 35 can prevent the adhesive tape from sagging between the cutting blade 33 and the cutting blade 33, and the support pin 35 can be prevented from getting in the way when the movable portion 31 is located close to the main body portion 11.

  Since the width adjusting member 18 is provided in the tape holder 12, the center in the width direction of the holder body 16 and the center in the width direction of the adhesive tape roll 13 can be made to coincide with each other. Can support the center. Thereby, the formation variation of the knob | pick part can be suppressed and it is convenient when forming the knob | pick part L. FIG.

[Second Embodiment]
Next, a tape cutter according to a second embodiment will be described. The tape cutter of the present embodiment has a tape cutting function and a knob forming function as in the case of the tape cutter 10 described above, but the movable part is taped to the main body as compared with the tape cutter 10. The mechanism for moving the cutter in the longitudinal direction (proximity and separation direction) is different, and the difference will be mainly described. FIG. 7 is a view showing the internal structure of the tape cutter 50 of the present embodiment, and FIGS. 7A and 7B show a state in which the tape holder 55 is in two different positions.

  In the tape cutter 50 shown in FIG. 7, a bearing groove 52 and a tape bonding portion 53 provided in the main body 51 are the same as the bearing groove 21 and the tape bonding portion 23 shown in FIG. The rotating shaft 56 and the holder side gear 57 provided in the tape holder 55 are the same as the rotating shaft 17 and the holder side gear 49 shown in FIG. In addition, the tension spring 58 that pulls and biases the tape holder 55 toward the rear side of the tape cutter is the same as the tension spring 22 shown in FIG. 1, and the movable part 61 and the cutting blade 62 are respectively movable parts shown in FIG. 31 and the cutting blade 33 are the same. In addition, although the support part is provided in the movable part 61 similarly to the structure of FIG. 1, illustration is abbreviate | omitted here.

  The tape cutter 50 has the following configuration as a difference from the configuration of FIG. That is, the main body 51 is provided with two gears (a first main body side gear 71 and a second main body side gear 72) so as to mesh with each other as a mechanism for moving the movable portion 61 in the longitudinal direction of the tape cutter. Connecting rods (vertical connecting rod 73 and horizontal connecting rod 74) for connecting the second main body side gear 72 and the movable portion 61 are provided. The vertical connecting rod 73 has an upper end connected to the side surface of the second main body side gear 72 and a lower end connected to the horizontal connecting rod 74. The horizontal connecting rod 74 is connected to the movable portion 61 at the front end portion of the tape cutter, and has a weight member 75 attached to the rear end portion of the tape cutter, and is initially held in a direction extending in a substantially horizontal direction. Has been.

  In the tape cutter 50 configured as described above, the state of FIG. 7A is the initial state, and the state is shifted to the state of FIG. 7B in accordance with the tape cutting operation by the user. At this time, from the state of FIG. 7A, when the user grips the knob L with his finger and pulls the adhesive tape 13a forward of the tape cutter, the tape holder 55 is moved against the urging force of the tension spring 58. Move forward. As a result, as shown in FIG. 7B, the tape holder 55 is moved to the tape feeding position, and the holder side gear 57 and the first main body side gear 71 are engaged with each other.

  When the user pulls the adhesive tape 13a further forward of the tape cutter so that the adhesive tape is unwound from the adhesive tape roll 13, the first main body side gear 71 rotates in the counterclockwise direction as the tape holder 55 rotates. The main body side gear 72 rotates in the clockwise direction, and the rear end of the tape cutter of the horizontal connecting rod 74 is lifted. Thereby, the movable part 61 is inclined so as to fall forward of the tape cutter, and the tape bonding part 53 on the main body part 51 side and the cutting blade 62 on the movable part 61 side are separated from each other.

  After the adhesive tape 13 a is cut by the cutting blade 62, the engagement between the holder side gear 57 and the first main body side gear 71 is released by the urging force of the tension spring 58, and the weight member 75 loads. The connecting rods 73 and 74 return to the initial state (the state shown in FIG. 7A), and the movable portion 61 returns to the position approaching the main body portion 51. At this time, the knob L is formed again at the tip of the adhesive tape 13a.

  As described above, according to the second embodiment, similarly to the first embodiment, since the user can automatically form the knob portion without pressing the movable portion 61 by hand, the operability at the time of cutting the tape is achieved. Can be improved.

[Third Embodiment]
Next, a tape cutter according to a third embodiment will be described. The tape cutter of the present embodiment has a tape cutting function and a knob forming function as in the case of the tape cutter 10 described above, but the movable part is taped to the main body as compared with the tape cutter 10. The mechanism for moving the cutter in the longitudinal direction (proximity and separation direction) is different, and the difference will be mainly described. FIG. 8 is a view showing the internal structure of the tape cutter 80 of this embodiment, and (a) and (b) show a state where the tape holder 85 is in two different positions.

  In the tape cutter 80 shown in FIG. 8, the main body portion 81 is provided with a bearing groove 82 and a tape bonding portion 83. The bearing groove 82 and the tape bonding portion 83 are respectively connected to the bearing groove 21 and the tape bonding portion shown in FIG. The portion 23 has substantially the same function. The bearing groove 82 is L-shaped, unlike the bearing groove 21. The tape holder 85 is provided with a rotation shaft 86. The main body 81 is provided with a spring 87 that urges the tape holder 85 to the rear side of the tape cutter. The spring 87 is a torsion coil spring, and one end (the lower side in the figure) is fixed to the main body 81 and the other end (the upper side in the figure) always biases the rotating shaft 86 to the rear side of the tape cutter. It has become a force group.

  In addition, a movable portion 91 that can move in the proximity and separation direction with respect to the main body 81 is provided on the end surface portion of the main body 81 on the front side of the tape cutter. The movable portion 91 is provided with a cutting blade 92 and a lower support pin 93.

  The tape cutter 80 has the following configuration as a difference from the configuration of FIG. That is, the main body portion 81 is provided with a lever 96 that is rotatably supported by the shaft portion 95 as a mechanism for moving the movable portion 91 in the longitudinal direction of the tape cutter. It is designed to rotate according to the rotation. Specifically, the tape holder 85 is provided with a disk-shaped rotating portion 88 coaxially with the rotating shaft 86. Further, the lever 96 is provided at one end thereof as a rotational force transmitting portion that contacts the outer peripheral surface of the rotating portion 88 and transmits the rotational force of the rotating portion 88 when the tape holder 85 is moved to the tape feeding position. While having the 1st end part 97, it has the 2nd end part 98 as a press part which presses the movable part 91 (specifically projection part 91a) on the other end side. The rotating portion 88 of the tape holder 85 and the first end portion 97 of the lever 96 have respective contact surfaces (the outer peripheral surface of the rotating portion 88 and the outer peripheral surface of the first end portion 97) as friction surfaces. Rotational force is transmitted by the sliding contact between each other by the pressing force of each other.

  The main body 81 is provided with a stopper pin 101 that restricts the rotation of the lever 96 in a predetermined direction (clockwise in FIG. 8). The movable portion 91 is brought closer to the main body 81 on the stopper pin 101. A tension spring 102 is provided that pulls in the direction. Here, in the lever 96, the second end 98 side is heavier than the first end 97 side with respect to the shaft portion 95, and the first end 97 side is on the upper side and the second end side by such a weighted configuration. Gravity acts so that the part 98 side is down. In this case, the lever 96 is held in a state where a part on the second end 98 side is in contact with the stopper pin 101 in a natural state (see FIG. 8A).

  The second end 98 of the lever 96 and the protrusion 91a of the movable portion 91 are released when the contact between the rotating portion 88 of the tape holder 85 and the first end 97 of the lever 96 is released (FIG. 8B). ) To the state shown in FIG. 8A), the opposing surfaces are configured as relief surfaces so as not to hinder the return rotation of the lever 96 (clockwise rotation in the drawing). ing. That is, the end surface (opposing surface) on the second end portion 98 side is configured by an arc surface decentered below the shaft portion 95, and the end surface (opposing surface) on the protruding portion 91a side is configured by an inclined surface that faces downward. Yes.

  In the tape cutter 80 configured as described above, the state of FIG. 8A is the initial state, and the state is shifted to the state of FIG. 8B in accordance with the tape cutting operation by the user. At this time, from the state of FIG. 8 (a), when the user picks the tab at the end of the tape with his finger and pulls the adhesive tape forward of the tape cutter, the tape holder 85 resists the biasing force of the spring 87. Move forward in the cutter. As a result, as shown in FIG. 8B, the tape holder 85 moves to the tape feeding position, and the rotating portion 88 of the tape holder 85 and the first end 97 of the lever 96 come into contact with each other (the rotating portion 88). The rotational force is transmitted to the first end 97).

  Then, when the user further pulls the adhesive tape forward of the tape cutter so that the adhesive tape is unwound from the adhesive tape roll 13, the lever 96 moves counterclockwise as the tape holder 85 rotates clockwise. The protrusion 91 a of the movable portion 91 is pressed by the second end 98 of the lever 96. Accordingly, the movable portion 91 is inclined so as to fall forward of the tape cutter, and the tape bonding portion 83 on the main body portion 81 side and the cutting blade 92 on the movable portion 91 side are separated from each other.

  Then, after the adhesive tape is cut by the cutting blade 92, the tape holder 85 is returned to the initial position by the biasing force of the spring 87, and the rotating portion 88 of the tape holder 85 and the first end portion of the lever 96. When the contact with 97 is released, the lever 96 returns to the position before the rotational force is transmitted due to the weight on the second end 98 side of the lever 96 (state of FIG. 8A). Further, the movable portion 91 returns to the position approaching the main body portion 81 by the tensile force of the tension spring 102. At this time, a tape knob is formed again at the tip of the adhesive tape.

  As described above, according to the third embodiment, similarly to the first embodiment, since the user can automatically form the knob portion without pressing the movable portion 91 by hand, the operability at the time of cutting the tape is achieved. Can be improved.

[Other Embodiments]
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  -In the said 1st Embodiment, the movable part 31 is provided so that rotation with respect to the main-body part 11, and the structure which moves by the side which approaches the main-body part 11 and moves away by the movable part 31 rotating, and However, this is changed (see FIG. 2), and the movable part 31 is provided so as to be slidable with respect to the main body part 11, and the movable part 31 is slidably moved between the side approaching the main body part 11 and the side away from it. It is good also as a structure which moves.

  In the configuration of FIG. 2, the rack 42 moves in the right direction (front side of the tape cutter), so that the rack 42 pushes out the axial part above the shaft part 32 of the movable part 31, and accordingly the movable part 31. Although it is set as the structure which leaves | separates (separates) from the main-body part 11, this may be changed. For example, an under-axis part that is lower than the shaft part 32 is provided in the movable part 31, and the rack 42 pulls the under-axis part of the movable part 31 by moving the rack 42 in the left direction (the rear side of the tape cutter). Accordingly, the movable portion 31 may be separated (distant) from the main body portion 11. In this case, one gear is added between the main body side gear 41 and the rack 42.

  In the configuration of FIG. 2, a spring mechanism may be used as means for returning the rack 42 from the position of FIG. 2B to the position of FIG. In this case, when the rack 42 moves to the front side of the tape cutter, the main body side gear 41 rotates in the counterclockwise direction in the drawing to wind the mainspring, and then the rack 42 is moved to the rear side of the tape cutter by releasing the mainspring. It should be back. In the configuration of FIG. 7, a spring mechanism may be provided instead of the weight member 75.

  -In the structure of FIG. 2, you may change each gear (the holder side gear 49, the main body side gear 41) other than a gear member, and these are the rotary bodies which can transmit rotational force in the mutual contact state. I just need it. The same applies to the configuration of FIG.

  In the configuration of FIG. 8, the rotating portion 88 of the tape holder 85 may be a gear (gear), and gear teeth may be provided on the outer periphery thereof, and gear teeth may also be provided on the first end 97 of the lever 96. In this case, the rotational force is transmitted between the tape holder 85 and the lever 96 via each gear tooth.

  In each of the above embodiments, mechanical movement including a plurality of gears or the like as means for moving the movable portion 31 (61) in the longitudinal direction of the tape cutter (proximity and separation direction) with respect to the main body portion 11 (51). Although the mechanism is used, it may be modified to use an electric driving means such as a motor. For example, when the adhesive tape is fed from the adhesive tape roll 13 with the movable part 31 approaching the main body part 11, the movable part 31 is moved to the side away from the main body part 11 by a motor, or is cut. When the adhesive tape is cut by the blade 33, the movable portion 31 may be moved to the side closer to the main body portion 11 by a motor.

  DESCRIPTION OF SYMBOLS 10 ... Tape cutter, 11 ... Main-body part, 12 ... Tape holder, 13 ... Adhesive tape roll, 13a ... Adhesive tape, 21 ... Bearing groove, 22 ... Tensile spring (holder urging means), 23 ... Tape adhesion part, 31 ... Movable part 33 ... cutting blade 41 ... main body side gear (operation member), 42 ... rack (operation member, state transition member), 46 ... compression spring (restoration means), 47 ... tension spring (restoration means), 49 ... Holder side gear (rotating part), 50 ... tape cutter, 51 ... main body part, 52 ... bearing groove, 53 ... tape bonding part, 55 ... tape holder, 57 ... holder side gear (rotating part), 58 ... tension spring (holder) (Biasing means), 61 ... movable part, 62 ... cutting blade, 71, 72 ... main body side gear (actuating member), 73, 74 ... connecting rod (actuating member, state transition member), 75 ... weight member (restoring means) 80 ... tape cutter, DESCRIPTION OF SYMBOLS 1 ... Main-body part, 82 ... Bearing groove, 83 ... Tape adhesion part, 85 ... Tape holder, 87 ... Spring (holder urging means), 91 ... Movable part, 92 ... Cutting blade, 96 ... Lever (operation member), 97 ... 1st end part (rotational force transmission part), 98 ... 2nd end part (pressing part), 102 ... Tension spring (restoration means), L ... Picking part.

Claims (5)

A tape holder that supports an annular adhesive tape roll from the inner periphery side;
A main body that rotatably supports the tape holder;
A fixing portion provided on the main body, and formed with an adhesive portion to which the adhesive tape fed from the adhesive tape roll is bonded;
A cutting blade for cutting the adhesive tape is provided on the side opposite the tape holder from the fixed part, and a movable part that moves so as to be able to approach and separate from the fixed part,
With
A tape cutter in which a grip portion in which adhesive surfaces are bonded to each other is formed at a tape front end portion between the adhesive portion and the cutting blade by bringing the movable portion closer to the fixed portion,
A first moving structure that moves the movable part to a side away from the fixed part when the adhesive tape is fed out from the adhesive tape roll in a state where the movable part is brought close to the fixed part;
When the adhesive tape is cut by the cutting blade, the second moving structure part that moves the movable part to the side closer to the fixed part;
A tape cutter characterized by comprising: The tape holder is movable from an initial position, which is a position in the tape non-feeding state in the main body, to a tape feeding position closer to the cutting blade than the initial position, and the anti-cutting blade is driven by a holder biasing means. Is biased to the side,
The first moving structure portion moves the movable portion away from the fixed portion when the tape holder moves from the initial position to the tape feeding position against the urging force of the holder urging means. Move
The second moving structure part moves the movable part to a side closer to the fixed part when the tape holder returns from the tape feeding position to the initial position by the urging force of the holder urging means. The tape cutter according to claim 1. The first moving structure part is:
A rotating portion provided on the tape holder so as to be integrally rotatable, and having a circular outer periphery coaxial with a shaft portion of the tape holder;
When the tape holder is moved to the tape feeding position, an operating member that contacts the outer peripheral portion of the rotating portion and operates by the rotational force of the rotating portion;
And when the actuating member is actuated, the movable part moves to a side away from the fixed part,
The second moving structure portion moves the movable portion closer to the fixed portion when the contact between the rotating portion and the actuating member is released as the tape holder returns to the initial position. The tape cutter according to claim 2, further comprising restoring means for causing the tape cutter. In the first moving structure unit,
The rotating part is a holder side gear provided integrally with the tape holder and having external teeth on the outer peripheral part,
The actuating member is provided with a shaft portion fixed to the main body portion, and when the tape holder moves to the tape feeding position, a main body side gear that meshes with an external tooth of the holder side gear; Transition is possible between a first state when approaching the fixed part and a second state when the movable part is separated from the fixed part, and the adhesive tape is engaged with the holder side gear and the main body side gear. A state transition member that transitions from the first state to the second state by rotation of the main body side gear,
In the second moving structure part,
The restoring means moves the state transition member from the second state to the first state when the engagement between the holder side gear and the main body side gear is released as the tape holder returns to the initial position. The tape cutter according to claim 3, wherein the tape cutter is returned to a state and moved to a side closer to the fixed portion. In the first moving structure portion, the actuating member is rotatably supported by the main body portion, and an outer peripheral portion of the rotating portion when the tape holder is moved to the tape feeding position on one end side. A lever member having a pressing force portion that presses the movable portion on the other end side.
In the second moving structure portion, when the tape holder returns to the initial position, the restoring means returns the lever member to a position before transmission of the rotational force, and moves the movable portion to the fixed portion. The tape cutter according to claim 3, wherein the tape cutter is moved toward the closer side.

Images