JP4993781B2 - Combined separation type sheet material cutting device and printer equipped with the same - Google Patents

Description

  The present invention is installed in office equipment such as copiers and printers and equipment and devices such as ticket vending machines, and cuts various sheet materials such as sheets and rolls of paper and films, seals and labels into arbitrary lengths. The present invention relates to a united and separated sheet material cutting device that can be used to perform and unite and separate cutting blades. The present invention also relates to a printer equipped with the united separation type sheet material cutting device.

  Conventionally, it is possible to combine and separate cutting blades, for example, a fixed blade and a rotating blade, and the combined blade and the cutting blade can be cut together by pressing and engaging the fixed blade and the rotating blade with a shear angle at the time of combining. There is a cutting device. In such a combined separation type sheet material cutting device, for example, a structure proposed in Patent Document 1 is known regarding a combined structure of a fixed blade and a rotary blade.

  Specifically, the cutting device disclosed in Patent Document 1 includes the engaging member and the engaged member at positions separated from the fixed blade and the rotary blade so that the fixed blade and the rotary blade are disposed at predetermined positions when they are combined. It has a joint member. Then, the fixed blade is brought close to the rotary blade and the engaging member and the engaged member are brought into contact with each other, thereby combining the fixed blade and the rotary blade. Since such a cutting device has a structure in which the stationary blade and the rotary blade do not geometrically contact with each other in the standby state before the start of cutting, the blade edge is theoretically damaged even when performing the merging operation at the cutting standby position. Does not occur.

  On the other hand, for example, Patent Document 2 proposes a configuration in which a fixed blade and a rotary blade are directly abutted and combined. Specifically, a guide portion is provided at a position away from the blade edge of the fixed blade, the fixed blade is moved in the direction of interference with the rotary blade and brought close to the rotary blade, and the edge of the rotary blade that is not used as the blade edge It is the structure which unites by abutting the guide part of a fixed blade. Since such a cutting device abuts a portion that is not a cutting edge of each other, such as a stationary blade guide part or an edge that is not used as a cutting edge of a rotating blade, the fixed blade moves in the direction of interference with the rotating blade when united. Even if it is made to do, it will not be damaged because the cutting edges of each other do not contact.

JP-A-11-58294 JP 2004-106155 A

  In the combined separation type sheet material cutting device, for example, when the sheet material is caught between the rotary blade and the fixed blade and the cutting is interrupted, the fixed blade is used to remove the bitten sheet material. May once separate from In such a case, that is, when the rotary blade stops in the middle of cutting, the angular position in the rotation direction of the stopped rotary blade, the so-called rotation phase (hereinafter referred to as the rotation position) is the same as the standby state before the start of cutting. It is not always in position.

  Thus, when the rotational position of the rotary blade is deviated, the above-described cutting device of Patent Document 1 moves the fixed blade closer to the rotary blade by moving the trajectory that interferes with the rotary blade, Since the fixed blade is united with the rotary blade while maintaining the track, depending on the posture of the rotary blade, the blade edge of the fixed blade may collide with the blade edge of the rotary blade, resulting in damage to the blade edge.

  Further, even when the rotation position of the stopped rotary blade is accidentally set to the standby position, the cutting device of Patent Document 1 positions the fixed blade and the rotary blade at a position away from the blade edge. Even when there is a slight defect such as a dimensional defect or twist during assembly of these members or their components, the blade tip may be damaged due to a collision at the time of combination. In addition, the cutting device of Patent Document 2 described above, like the cutting device of Patent Document 1, moves the orbit that interferes with the rotating blade and moves the fixed blade closer to the rotating blade and combines them at the time of combining. Depending on the posture of the blade, the blade edge of the fixed blade may interfere with and collide with the blade edge of the rotary blade, and the blade edge may be damaged.

  In view of the above problems, an object of the present invention is to provide a united separation type sheet material cutting device capable of smoothly uniting a fixed blade with a rotary blade without causing mechanical collision with a simple mechanical configuration. That is. Another object is to provide a printer equipped with this.

  The inventor moves the fixed blade so that the fixed blade is moved and brought into contact with the rotary blade so that the moving track of the fixed blade does not interfere with the rotary blade and the rotary blade from the plate surface side of the fixed blade. By adopting a configuration that divides the track into contact with the track, the fixed blade and the rotary blade can be brought into contact with and pressed against the rotary blade without causing mechanical collision between the blade edges. The present invention was conceived by finding out that they can be combined.

That is, according to the present invention, a fixed blade having a cutting edge extended in the cutting width direction and a rotary blade having a cutting edge extended in the cutting width direction are arranged so as to be separable, and the fixed blade and the rotating blade are A sheet material cutting device that cuts a sheet material by press-contacting with each other at a shear angle by combining and moving the fixed blade to a predetermined position with respect to the rotary blade by moving a track that does not interfere with the rotary blade. The fixed blade is moved toward the rotary blade by using the first movement of the fixed blade, and then using guide portions (7d ₁ , 44d ₁ , 221a) for guiding the moving track of the fixed blade. by a second movement of the fixed blade Ru brought into contact with the rotary blade from plate face having a cutting edge of said fixed blade, coalesces the fixed blade to the rotary blade, coalescence separation type sheet material cutting device is there.

  The united separation type sheet material cutting device of the present invention includes a fixed blade holding member having the fixed blade, a rotary blade holding member having the rotary blade, the fixed blade holding member and the rotary blade extended in a cutting width direction. A fixed shaft holding member that pivotably connects to the holding member, the fixed blade holding member being pivotably connected to the main shaft and parallel to the main shaft via the swinging base portion A first shaft connected to the first shaft, an intermediate swinging portion swingably connected to the first shaft, a second shaft connected substantially parallel to the main shaft via the intermediate swinging portion, and the first shaft The rotary blade holding member is capable of mooring the first shaft and the second shaft. And a second shaft anchoring portion having a guide portion for guiding the second shaft in a direction away from the main shaft, and the second shaft is centered on the main shaft. To move the fixed blade closer to a predetermined position with respect to the rotary blade by moving the fixed blade to a predetermined position with respect to the rotary blade. By moving the second shaft in the direction away from the main shaft at the guide portion of the second shaft mooring portion by moving the main shaft about the main shaft until it contacts the first shaft mooring portion, It can be set as the united separation type sheet material cutting device which moves toward the rotary blade and brings it into contact with the rotary blade and unites them.

  In the present invention, the rotary blade holding member is movable so as to determine a positional relationship between the fixed blade and the rotary blade by constraining the first shaft or the second shaft when the rotary blade holding member is combined with the fixed blade holding member. It can have a member restraining part.

  The second shaft anchoring portion may include an anchoring portion capable of anchoring the fixed blade at a pressure contact position with the rotary blade.

  Further, the fixed blade holding member has a substantially flat portion extended in the cutting width direction, and an edge of the substantially flat portion can form a cutting edge line of the fixed blade.

A printer can be formed by mounting the united separation type sheet material cutting device of the present invention.
That is, the printer of the present invention is a printer equipped with the above-described united separation type sheet material cutting device, the printer having a print head member having a print head, and the print head member having the fixed blade. It can arrange | position so that rotation with respect to the said rocking | fluctuation base connected so that rotation with respect to the fixed blade holding member was possible.

  The printer of the present invention has a platen roller member having a platen roller, and the platen roller member is rotatable so as to be positioned facing the print head member when the fixed blade and the rotary blade are combined. Can be arranged.

  The coalescing / separating sheet material cutting device of the present invention moves the track where the fixed blade does not interfere with the rotating blade to move to a predetermined position with respect to the rotating blade at the time of combining, and then moves the fixed blade toward the rotating blade. The fixed blade movement trajectory is such that the fixed blade edge is brought into contact with the rotary blade from the plate surface side having the fixed blade edge so that the blade edge of the fixed blade does not come into contact with the rotary blade first. In addition, problems such as chipping and cracking of the blade edge due to mechanical collision between the fixed blade and the rotary blade can be prevented.

It is a block diagram which becomes an example of the coalescing separation type | formula sheet material cutting device of this invention. It is a block diagram which shows the positional relationship of each member of the sheet | seat material cutting device shown in FIG. It is a block diagram which shows the positional relationship of each member of the sheet | seat material cutting device shown in FIG. It is a side view at the time of isolation | separation of the sheet | seat material cutting device shown in FIG. It is sectional drawing at the time of isolation | separation of the sheet | seat material cutting device shown in FIG. It is a side view in the middle of uniting of the sheet material cutting device shown in FIG. It is sectional drawing in the middle of uniting of the sheet | seat material cutting device shown in FIG. It is a side view at the time of uniting of the sheet material cutting device shown in FIG. It is sectional drawing at the time of uniting of the sheet material cutting device shown in FIG. It is a schematic diagram which shows an example of the movement track | orbit which unites a fixed blade with respect to a rotary blade in this invention. It is a block diagram when a fixed blade exists in a separation state in an example of the present invention. It is a block diagram when a fixed blade is in the middle of uniting operation. It is a block diagram when a fixed blade exists in a united state with respect to a rotary blade. It is a schematic diagram which shows an example of the movement track | orbit which unites a fixed blade different from the fixed blade shown in FIG. 10 with respect to a rotary blade in this invention. It is a block diagram which becomes an example of the printer of this invention carrying the printing head, the platen roller, and the united separation type sheet material cutting device of this invention. It is a block diagram which shows the positional relationship of each member of the printer shown in FIG. It is a block diagram which shows the positional relationship of each member of the printer shown in FIG. It is a side view at the time of isolation | separation of the printer shown in FIG. It is sectional drawing at the time of isolation | separation of the printer shown in FIG. FIG. 16 is a side view of the printer shown in FIG. 15 when combined. It is sectional drawing at the time of uniting of the printer shown in FIG.

  An important feature of the present invention is that when the fixed blade is united with the rotary blade, the movement trajectory of the fixed blade, as described above, from the trajectory that does not interfere with the rotary blade and the plate surface side of the fixed blade. This is divided into the track to be brought into contact with the rotary blade. Specifically, (1) the fixed blade is moved along a trajectory that does not interfere with the rotary blade and brought close to a predetermined position with respect to the rotary blade, and then (2) the fixed blade is moved toward the rotary blade to fix the fixed blade. The fixed blade is brought into contact with and combined with the rotary blade using a special moving track (1) and (2) of the fixed blade that is brought into contact with the rotary blade from the side of the plate surface having the cutting edge. Of the moving trajectories of the fixed blade, the moving trajectory (2) is particularly important. When the fixed blade is brought into contact with the rotary blade from the plate surface side having the fixed blade edge, the fixed blade edge rotates. The first contact with the blade will not occur. Therefore, when the fixed blade is united with the rotary blade, the collision of the blade edge of the fixed blade with the rotary blade is mitigated, and damage to the blade edge can be prevented.

  In the present invention, when the rotary blade and the fixed blade are united, first, the fixed blade is moved along a trajectory that does not interfere with the rotary blade so as to approach the rotary blade. In the first movement of the fixed blade, the fixed blade can be positioned with respect to the rotary blade so that the fixed blade and the rotary blade have a positional relationship that does not cause mechanical collision. It can be guided to a predetermined position near the rotary blade while avoiding mechanical collision. Specifically, the positioning of the fixed blade by the first movement is preferably performed such that the plate surface side having the blade edge of the fixed blade is positioned substantially opposite to the rotary blade.

  Then, in this invention, a fixed blade is moved so that it may contact with a rotary blade from the plate | board surface side which has the blade edge | tip of a fixed blade. By the second movement of the fixed blade, the plate surface itself having the blade edge of the fixed blade approaches the rotary blade. The stage of moving the fixed blade to bring the fixed blade into contact with the rotating blade is particularly important as described above. In the present invention, the rotating blade is placed in the state in which the cutting edge of the fixed blade is positioned first. The blade edge of the fixed blade so that it does not come into strong contact as if it collides with it, that is, only the blade edge of the fixed blade does not contact the rotary blade first at the time of contact. It moves toward the rotary blade from the plate surface side having Since the fixed blade is moved in this way, the fixed blade edge does not come into contact with the rotary blade so strongly that it collides with the rotary blade. The fixed blade and the rotary blade can be smoothly pressed and meshed with each other with a shear angle so that they can be combined.

  As described above, the united separation type sheet material cutting device according to the present invention ensures the collision between the blade edge of the fixed blade and the rotary blade by moving the fixed blade according to the above-described movement trajectories (1) and (2) during the uniting. The fixed blade can be positioned at a predetermined position in the vicinity of the rotary blade while avoiding it, and the fixed blade can be brought into contact with the rotary blade without damaging the sharp edge of the fixed blade. The blade can be brought into pressure contact with the rotary blade to be combined.

  Here, the coalescence separation in the present invention will be described. The coalescence referred to in the present invention refers to a state in which the sheet material can be cut when the rotary blade and the fixed blade are brought into pressure contact with each other with a shear angle. Further, the separation in the present invention refers to a state in which the rotary blade and the fixed blade are separated from each other so that there is a sufficient gap between the two blades so that maintenance such as removal of chips and dust can be performed. As a matter of course, in the middle of combination or separation, the rotary blade and the fixed blade are separated from each other, but the two blades are closer to each other than the above-described separation state.

  Further, in the first movement of the fixed blade in the present invention, the fixed blade is guided to a predetermined position near the rotary blade so that the plate surface side having the cutting edge of the fixed blade can be seen from the rotary blade. It is for positioning. Therefore, the predetermined position where the above-mentioned fixed blade is positioned may be a spatial position that generally corresponds to the extending direction from the plate surface side having the blade edge of the fixed blade, and is a perpendicular line from the plate surface having the blade edge of the fixed blade. The position is not limited to exactly corresponding to the direction. Therefore, in the first movement of the fixed blade, if the fixed blade can be positioned in a predetermined position near the rotary blade so as to be in a non-contact state with the rotary blade on the plate surface side having the blade edge of the fixed blade. Good. In the second movement of the fixed blade, the fixed blade collides so strongly as to approach the rotary blade from the plate surface side having the blade edge of the fixed blade, that is, the blade edge of the fixed blade is damaged to the rotary blade. It is sufficient that the fixed blade is moved and brought into contact with the rotating blade so that the fixed blade can be pressed against the rotating blade as a result.

The movement trajectory of the fixed blade in the present invention described above will be further described with reference to FIG.
FIG. 10 is a diagram schematically showing the concept of the moving trajectory of the fixed blade 202 in the combining operation in the present invention in which the fixed blade 202 is moved and combined with the rotary blade 201 supported by the shaft. Note that, not limited to FIG. 10, the stationary position before movement of the fixed blade 202 is indicated by a dotted line, and the stationary position after movement of the fixed blade 202 is indicated by a solid line.

  In the present invention, the movement of the fixed blade 202 with respect to the rotary blade 201 during the union is performed so that the cutting edge line 202a of the fixed blade 202 does not interfere with the rotary blade 201 as indicated by an arrow 203 in FIG. A plate surface having a cutting edge line 202a of the fixed blade 202 whose position is indicated by an arrow 205 with respect to the fixed blade 202. The fixed blade 202 is positioned so as to be positioned on the extension on the 202b side. Thereafter, a second movement is performed to move the fixed blade 202 so as to approach the rotary blade 201 from the plate surface 202b side having the cutting edge line 202a of the fixed blade 202 as indicated by an arrow 204 in FIG. Thus, the fixed blade 202 is brought closer to the rotary blade 201, and finally, the fixed blade 202 is brought into contact with the rotary blade 201 to be pressed. Thereby, the cutting edge line 202a of the fixed blade 202 can contact the rotating blade 201 without being damaged, and thereby the fixed blade 202 can be smoothly meshed and united.

  Furthermore, an example in which another fixed blade having a shape different from that of the above-described fixed blade 202 is applied to the moving track of the fixed blade in the present invention will be described with reference to FIG. FIG. 14 is a schematic diagram similar to the schematic diagram shown in FIG. 10, and the movement trajectory of the fixed blade 206 formed in a substantially L shape having a bend in the vicinity of the blade edge line 206 a with respect to the rotary blade 201 that is pivotally supported. Shows the concept. Except for the configuration of the fixed blade 206, solid lines, dotted lines, arrows, and the like are used as in FIG.

  The fixed blade 206 has a shape in which an end portion of a plate-like material is bent toward the rotary blade 201, and a cutting edge line 206a is formed at one edge of the distal end portion of the bent portion 206c. A fixed blade having a shape obtained by bending the vicinity of the blade edge, such as the fixed blade 206, is suitable for cutting a sheet material having an adhesive such as label paper. For example, when cutting of label paper or the like is continued, the adhesive ridges peeled off at the time of cutting may adhere to and accumulate on the fixed blade. The scissors may interfere with the cutting by biting into the meshing point of the rotary blade and the fixed blade. Therefore, by applying a fixed blade having a shape that is bent near the blade edge, such as the fixed blade 206, the vicinity of the inside of the bent portion that follows the blade edge can be utilized as an adhesive stagnation part that allows the accumulation of adhesive mist. Even when the adhesive ridge is accumulated due to the continuation of cutting, the smooth engagement between the rotary blade and the fixed blade is not easily inhibited.

  When the fixed blade 206 suitable for cutting the adhesive-attached sheet material is used, as shown by an arrow 203 in FIG. 14A, the rotary blade 201 so that the cutting edge line 206a of the fixed blade 206 does not interfere with the rotary blade 201. A first movement is performed to move the fixed blade 206 in a direction that causes no interference. This is substantially the same as in the case of the fixed blade 202 described above, and by this movement, the fixed blade 206 is positioned so that the position of the rotary blade 201 is located on the extension on the plate surface 206b side having the cutting edge line 206a of the fixed blade 206. Positioned on. Next, as shown by an arrow 204 in FIG. 14B, a second movement for moving the fixed blade 206 so as to approach the rotary blade 201 from the plate surface 206b side having the cutting edge line 206a of the fixed blade 206 is performed. Do. By this movement, the fixed blade 206 can smoothly come into contact with the rotating blade 201 without colliding so strongly that its blade edge is damaged, and finally the blades are brought into pressure contact with each other.

  Here, the plate | board surface which has the blade edge | tip of the fixed blade in this invention is demonstrated. In the above-described fixed blade 202 that does not have a bending portion in the vicinity of the blade edge, one side of the flat plate side surface of the plate-like material that is the material of the fixed blade 202 is a plate surface 202 b that moves closer to the rotary blade 201. Therefore, in the fixed blade having the external shape like the fixed blade 202, the plate surface corresponding to the plate surface 202b corresponds to the plate surface having the cutting edge of the fixed blade in the present invention. Further, in the above-described fixed blade 206 having the bent portion 206 c in the vicinity of the blade edge, a plane parallel to the plate thickness direction of the plate-like material that is the material of the fixed blade 206 is a plate surface 206 b that moves closer to the rotary blade 201. Yes. Therefore, in a fixed blade having an external shape such as the fixed blade 206, the plate surface corresponding to the plate surface 206b corresponds to the plate surface having the cutting edge of the fixed blade in the present invention. If a fixed blade having a sharpened blade edge angle by machining is used, it may be moved closer to the rotary blade from one of the two inclined surfaces forming the blade edge angle. Therefore, in this case, the one inclined surface described above corresponds to the plate surface having the cutting edge of the fixed blade in the present invention.

  In the present invention, as an example of configuring the moving trajectory of the fixed blade that does not interfere with the rotating blades when united, as shown in FIGS. 10 and 14, the main shaft provided separately from the rotating shaft of the rotating blade is used. In addition to a configuration in which the fixed blade is swung or swung as a center to be brought close to the rotating blade, several are conceivable. For example, the fixed blade can be swung or swiveled around the rotation axis of the rotary blade to approach the rotary blade. In addition, a guide member that guides the moving trajectory of the fixed blade is provided, and the fixed blade is moved along the guide of the guide member so as to have a desired moving trajectory such as a linear trajectory or a gentle curved trajectory. The structure which approaches may be sufficient.

Next, a specific example of a united separation type sheet material cutting device capable of moving the fixed blade on the moving trajectory described above at the time of uniting will be described with reference to the drawings.
FIGS. 11-13 is an example of the united separation type sheet | seat cutting device (henceforth the cutting device 200) of this invention, Comprising: The arrangement | positioning relationship of each member which concerns on the rotary blade 201, the fixed blade 202, and a double-edged tool is shown. It is a figure shown typically. FIG. 11 shows a state at the time of separation where the rotary blade 201 and the fixed blade 202 are not combined. FIG. 12 shows a state after the first movement of the fixed blade 202 described above from the separated state shown in FIG. FIG. 13 shows a combined state in which the rotary blade 201 and the fixed blade 202 are combined, and the fixed blade 202 is moved to the rotary blade 201 by performing the second movement after the first movement of the fixed blade 202 described above. The state pressed against is shown.

  The cutting device 200 rotates the fixed blade holding member 212 having the fixed blade 202, the rotating blade holding member 211 having the rotating blade 201, and the fixed blade holding member 212 and the rotating blade holding member 211 extended in the cutting width direction. And a main shaft 213 that is movably connected. The fixed blade holding member 212 includes a swing base 214 that is swingably connected to the main shaft 213, a first shaft 215 that is connected in parallel to the main shaft 213 via the swing base 214, and a first shaft 215. An intermediate oscillating portion 216 that is movably connected, a second shaft 217 that is connected substantially parallel to the main shaft 213 via the intermediate oscillating portion 216, and a fixed blade that is swingably connected to the second shaft 217. And an attachment portion 218.

  The second shaft 217 directly related to the movement of the fixed blade 202 is slightly inclined with respect to the main shaft 213 by an angle corresponding to the biting angle set between the rotary blade 201 and the fixed blade 202. Strictly speaking, in the present invention, although the geometrical parallel positional relationship is not used, the positional relationship in a state in which the second shaft 217 is arranged with a slight inclination such that it appears to be parallel is apparent. Called parallel.

  Further, the above-described biting angle is important in order to surely engage the cutting edges of the rotary blade and the fixed blade and perform cutting, and is conventionally determined with a deviation amount of 1 mm for a length of 1000 mm, for example. It is considered sufficient to have a biting angle of about 0.06 degrees. However, it is difficult to practically ignore the influence of the dimensional accuracy and assembly accuracy of members such as the straightness of the cutting edge line of the fixed blade, the coaxiality of the rotation axis of the rotary blade, and the clearance. Further, as the biting angle increases, the driving force required for cutting increases, and for example, when the thickness of the sheet material to be cut is thick, the required driving force further increases. Further, the larger the biting angle, the easier the cutting edge of the fixed blade and the rotary blade is worn, so that the cutting durability of the sheet material cutting device tends to deteriorate.

  Therefore, in the present invention, the biting angle is set to 1 degree or less, desirably 0.5 degrees or less, more desirably 0.3 degrees or less, and preferably 0.1 degrees or less if possible. As a result, the amount of displacement caused by the above-described variation in the dimensions and assembly of the members can be alleviated by absorbing the deviation amount outside the biting angle of about 0.06 degrees, which is considered to be necessary. In addition, an effect of reducing the driving force required for cutting and an effect of suppressing wear of the fixed blade and the rotary blade can be expected.

  Further, the rotary blade holding member 211 can anchor the first shaft 215 of the fixed blade holding member 212 and the second shaft 217 from the main shaft 213. It has the 2nd axis | shaft anchoring part 221 which has the guide part 221a guided to a separation direction. Further, a pressing member 219 for pressing the fixed blade 202 against the rotary blade 201 is provided.

  In the cutting device 200 having the above-described configuration, the uniting of the fixed blade 202 with the rotary blade 201 moves so that the first shaft 215 and the second shaft 217 of the fixed blade holding member 212 are closer to the rotary blade holding member 211. And it can carry out by mooring to the 1st axis | shaft anchoring part 220 and the 2nd axis | shaft anchoring part 221. Specifically, as shown in FIG. 12, the second shaft 217 is moved in the direction indicated by the arrow 222 by swinging the swing base 214 around the main shaft 213, whereby the second shaft 217 is moved to the second shaft. The abutment portion 221 is brought into contact with and locked. This movement of the second shaft 217 allows the first movement of the fixed blade 201 indicated by the arrow 203, that is, the direction in which the cutting edge line 202 a of the fixed blade 202 does not interfere with the rotary blade 201 so as not to interfere with the rotary blade 201. The fixed blade 202 can be positioned so that the position of the rotary blade 201 is positioned on the extension on the plate surface 202b side having the cutting edge line 202a of the fixed blade 202 with respect to the fixed blade 202.

  Next, as shown in FIG. 13, the swing base 214 is further swung around the main shaft 213, and the intermediate shaft 216 is swung around the first shaft 215, whereby the first shaft 215 is moved by the arrow 223. The first shaft 215 is brought into contact with the bottom of the first shaft mooring portion 220 and thereby moored. During the operation of the first shaft 215, the second shaft 217 can be moored by moving in the direction away from the main shaft 213 indicated by an arrow 224 in the second shaft anchoring portion 221. By the movement of the second shaft 217 at this time, the second movement of the fixed blade 202 indicated by the arrow 204 can be performed. That is, when the second shaft 217 moves in the direction indicated by the arrow 224, the fixed blade mounting portion 218 is also moved in the direction indicated by the arrow 224, whereby the fixed blade 202 is also moved in the direction indicated by the arrow 204. Through the series of operations described above, the fixed blade 202 is brought closer to the rotary blade 201 from the plate surface 202b side having the blade edge line 202a, and finally the blade edge line 202a collides with the rotary blade 201. It is touched gently without being touched strongly. At substantially the same time as this contact, the fixed blade 202 can be pressed against the rotary blade 201 by the press contact member 219, whereby the rotary blade 201 and the fixed blade 202 can be combined.

  In the above-described uniting operation of the fixed blade 202 with respect to the rotary blade 201, as shown in FIGS. 11 and 12, the angle that determines the positional relationship between the swing base 214 and the intermediate swing portion 216 that are connected to the first shaft 215. It is preferable to bring the fixed blade 202 closer to the rotary blade 201 in a state where θ1 (hereinafter referred to as a link angle) is held. Thereby, the fixed blade 202 can be reliably moved so as to follow a movement trajectory in which the preset edge 202a of the fixed blade 202 does not interfere with and collide with the rotary blade 201. After that, as shown in FIG. 13, the positional relationship between the swing base 214 and the intermediate swing portion 216 changes, and the held link angle θ1 becomes θ2 (θ2> θ1).

  By making the second movement after the first movement of the fixed blade described above, the fixed blade is made a special movement trajectory, and this series of operations moves the trajectory that does not interfere with the rotary blade. It can approach to the predetermined position with respect to a rotary blade. Then, after this, the fixed blade can be moved in the direction of the rotary blade so as to be brought into contact with the rotary blade from the plate surface side having the blade edge of the fixed blade. Without causing a strong collision, the fixed blade can be pressed against the rotary blade by the pressing member, and the fixed blade can be united with the rotary blade.

  In the present invention, preferably, the rotary blade holding member includes a movable member restraining portion that determines the positional relationship between the fixed blade and the rotary blade by restraining the first shaft or the second shaft when the rotary blade holding member is united with the fixed blade holding member. Is to have. By constraining the first axis or the second axis of the fixed blade holding member at the time of combination, the positional relationship of the fixed blade with respect to the rotary blade related by the combination can be substantially fixed, and it can be rotated even after repeated cutting. The positional relationship of the fixed blade with respect to the blade is reliably maintained. When the second shaft is constrained, it is desirable that the first shaft be held with a predetermined gap so as not to swing around the second shaft. Further, it is desirable to anchor and restrain the second shaft that is closer to the fixed blade, thereby further ensuring the positioning of the fixed blade with respect to the rotary blade.

  In the present invention, a substantially cylindrical rotary blade based on a cylindrical shape can be used. For example, it has a long shank portion and a blade portion having a cutting edge line provided in the longitudinal direction of the shank portion that substantially coincides with the cutting width direction, and the blade portion and the shank portion are an integral metal. A rotary blade made of a sintered body, a rotary blade having a curved cutting edge made of a metal sintered body obtained by sintering a metal powder injection molded body, or the like can be used.

  Further, in the present invention, the fixed blade is formed integrally with the fixed blade holding member by providing the fixed blade holding member with a configuration such as the shape, size, rigidity, hardness and the like of the blade edge desired for the fixed blade. It is also possible to form a blade edge as a fixed blade on the fixed blade holding member itself.

  Next, the printer of the present invention equipped with the above-described united separation type sheet material cutting device of the present invention will be described. The printer of the present invention is a printer of the same kind as a printer generally called, for example, a thermal printer or a label printer, and has a sheet material cutting function by mounting the above-described united separation type sheet material cutting device of the present invention. It is

  In configuring a printer by mounting the united separation type sheet material cutting device of the present invention, for example, a print head used in a conventional thermal printer or label printer is disposed on the above-described fixed blade holding member. do it. Furthermore, the fixed blade and the print head can be assembled together and disposed on the above-described fixed blade holding member. As a result, in the above-mentioned printers and the like, members such as a cover and a frame that are normally provided as separate members from the cutting device can be shared with the cutting device. Can contribute.

(Union separation type sheet material cutting device of the present invention)
Since the united separation type sheet material cutting device of the present invention described above is specifically manufactured, it will be described with reference to the drawings.
FIG. 1 is an example of a united separation type sheet material cutting device (hereinafter referred to as a cutting device 100) of the present invention, and is a configuration diagram showing a state in which a fixed blade 2 is pressed against a rotary blade 1 and united. . 2 and 3 are configuration diagrams for clearly showing the configuration and positional relationship of each member in the cutting device 100 shown in FIG. 2 is inserted into the through-hole 7b of the frame 7 shown in FIG. 3, the configuration of the cutting device 100 shown in FIG. 1 is obtained. FIG. 4 shows a right side view and FIG. 5 shows a cross-sectional view from the right side of the line segment PP when the cutting apparatus 100 is separated. FIG. 6 shows a right side view of the cutting device 100 in the middle of the union separation, and FIG. 7 shows a cross-sectional view of the line segment PP from the right side. FIG. 8 shows a right side view and FIG. 9 shows a cross-sectional view from the right side of the line segment PP when the cutting device 100 is united. In each figure, some parts are simplified for clarity.

  The cutting device 100 includes a rotary blade 1 and a fixed blade 2 for performing cutting. And the side of the fixed blade holding member which has the fixed blade 2 connected the support shaft 10 which becomes the 2nd axis | shaft connected to the holder 3 which attached the fixed blade 2 used as a fixed blade attachment part, the holder 3, and the support shaft 10. An arm 4 serving as an intermediate swinging portion, a link pin 12 serving as a first shaft communicated with the arm 4, a cover 5 serving as a swinging base connected to the link pin 12, and the fixed blade 2 to the rotary blade 1 when combined. A pressure contact spring 11 for pressure contact is provided. And the side of the rotary blade holding member which has the rotary blade 1 has the flame | frame 7 which attached the rotary blade 1 rotatably. Further, the cover 5 can be rotated around the fulcrum pin 13 by the fulcrum pin 13 serving as the main shaft between the cover 5 on the side of the fixed blade holding member and the frame 7 on the side of the rotary blade holding member. They were connected as follows.

  The fixed blade 2 is formed in a flat plate shape whose longitudinal direction extends in the cutting width direction. The fixed blade 2 was attached to the holder 3 so as to be able to swing around the support shaft 10 integrally with the holder 3. A pressing spring 11 for pressing the fixed blade 1 against the rotary blade 1 is provided with a holder 3 and an arm 4 so that the fixed blade 2 can be pressed against the rotary blade 1 in the swinging direction of the fixed blade 2. Supported between. As a result, the holder 3 pressed by the pressing force of the press contact spring 11 is swung around the support shaft 10, and the fixed blade 2 integrated with the holder 3 is also swung around the support shaft 10, thereby rotating the rotary blade 1. The fixed blade 2 is pressed against the surface.

  On the other hand, the rotary blade 1 extended and arranged in the cutting width direction so as to be along the above-described fixed blade 2 at the time of coalescence is a substantially cylindrical shape, and has a long shank portion 1b and a blade edge line 1a. It has the guide part 1e for guiding so that the part 1d, the cutting edge line 1a, and the cutting edge line 2a of the fixed blade 2 may mesh smoothly. Further, the rotary blade 1 is provided with shaft portions 1c on both sides in the longitudinal direction of the shank portion 1b. The shaft portions 1c are fitted into bearings 9 provided on the frame 7 so as to be rotatably supported. The positioning of the rotary blade 1 in the cutting width direction with respect to the frame 7 was performed by press-fitting a C-type retaining ring 31.

  Between the rotary blade 1 and the fixed blade 2 described above, a paper passing portion 8 is formed which is a space for inserting a sheet material to be cut when the rotary blade 1 and the fixed blade 2 are combined. The cutting edge line 1a of the rotary blade 1 and the cutting edge line 2a of the fixed blade 2 can be engaged with each other with a shear angle.

  The above-mentioned holder 3 supports a fixed blade mounting surface 3a for mounting the fixed blade 2, a through-hole 3b for communicating the support shafts 10 provided on both sides in the longitudinal direction that is the cutting width direction, and a pressure contact spring 11. In addition, it has a receiving surface 3 c for receiving the pressing force of the press contact spring 11, and a contact portion 3 d provided in the vicinity of the center in the longitudinal direction. Further, the abutting portion 3 d provided on the holder 3 can be brought into contact with the stopper pin 32 provided on the arm 4, whereby the swinging angle of the holder 3, that is, the swinging in the pressure contact direction with respect to the rotary blade 1 about the support shaft 10. The range of motion was regulated, and the press contact spring 11 was supported between the holder 3 and the arm 4, and in addition, the press contact spring 11 was compressed to apply preload.

  In the case of the above-described configuration, it is preferable to apply a preload to the press contact spring 11. In order to apply a pressure contact force between the rotary blade 1 and the fixed blade 2 at the time of combining, it is necessary to further move the fixed blade 2 in contact with the rotary blade 1 to compress and compress the pressure spring 11. Therefore, by applying a preload to the pressure spring 11 in advance and compressing it in advance, the amount of movement of the fixed blade 2 or the holder 3 integrated with the fixed blade 2 can be reduced, and thereby the internal space of the cutting device. Can contribute to downsizing. Further, when the fixed blade is pressed against the rotating blade, it is desirable that the moving amount of the fixed blade is as small as possible, the inertia force of the fixed blade due to the movement is reduced, and mechanical collision of the fixed blade with the rotating blade is prevented. Can be prevented.

  The above-described support shaft 10 is provided with E-rings 33 in the groove portions 10a provided on both sides in the longitudinal direction which is the cutting width direction, thereby positioning the support shaft 10 with respect to the arm 4 in the cutting width direction. Further, in positioning the support shaft 10, the axial positions of the through holes 4a and 4a 'provided in the arm 4 so as to correspond to both ends of the support shaft 10 are shifted from each other. A biting angle called an intersection angle at which the cutting edge line 2a of the fixed blade 2 crosses and meshes with one cutting edge line 1a was given. Specifically, the relative positions of the through holes 4a and 4a ′ viewed from the cutting width direction are such that the edge line 2a of the fixed blade 2 has a biting angle of about 0.3 degrees with respect to the rotary blade 1 when combined. Further, the center positions of the through holes 4a and 4a ′ are set to be shifted from each other.

  The above-described arm 4 includes through-holes 4a and 4a ′ for connecting the support shafts 10 provided on both sides in the longitudinal direction that is the cutting width direction, a through-hole 4b for communicating one end of the link pin 12, and the above-described arm 4. A support part 4c for supporting the pressure contact spring 11; a tap hole 4d for fixing the stopper pin 32; and a contact part 4e provided on both sides in the longitudinal direction. And supported by a link pin 12 connected to the cover 5. Further, the abutting portion 4e provided on the arm 4 can be brought into contact with the receiving portion 5c provided on the cover 5, and thereby the swing angle of the arm 4 around the link pin 12 is regulated.

  The cover 5 includes a tap hole 5a for connecting one end of the link pin 12 to both ends in the longitudinal direction which is the cutting width direction, a through hole 5b for communicating one end of the fulcrum pin 13, and the above-described cover 5 It has the receiving part 5c for making the contact part 4e provided in the arm 4 contact | abut, and the tap hole 5d for attaching the urging | biasing spring 14 in two places of a longitudinal direction. Further, the cover 5 is provided with an urging spring 14 having an urging portion 14b, and is attached to the tap hole 5d provided in the cover 5 with a screw 34 using a through hole 14a provided in the cover 5. The arm 4 can be urged in the direction of decreasing the link angle.

  In addition, it is preferable to urge the arm 4 in the direction in which the link angle is reduced. As a result, when the fixed blade 2 is united, the support shaft 10 in the movable member, the holder 3 pressed by the press contact spring 11, and the swing of the fixed blade 2 integrated with the holder 3 are restricted. Can be prevented from swinging in the direction of separation. In addition, for example, the state in which the angle formed by the cover 5 serving as the rocking base and the arm 4 serving as the intermediate rocking portion is kept at a predetermined angle (θ1) at the time of uniting can suppress the fine movement of the fixed blade 2. As a result, the movement trajectory of the support shaft 10 toward the notch 7d provided in the frame 7 can be maintained at a predetermined level.

At the time of uniting, the above-described frame 7 once locks the notch portion 7c serving as the first shaft anchoring portion for anchoring the link pin 12 serving as the first shaft and the support shaft 10 serving as the second shaft. and a cutout portion 7d serving as the second shaft anchoring portion having a guide portion 7d ₁ of the formed so as to guide the support shaft 10 in the detaching direction from the fulcrum pin 13 as a main shaft, having on both sides of the cutting width direction . Incidentally, notches 7d having a guide portion 7d ₁ formed on both sides of the frame 7 is provided so as to have an angular biting 0.3 degrees between each other of the cutting edge of the rotary blade 1 and the fixed blade 2 when combined Further, the position is set so that the support shaft 10 communicated with the through holes 4a and 4a ′ of the arm 4 can be fitted. And in the notch part 7c, the link pin 12 contact | abutted to the bottom edge part of the notch part 7c can be latched and anchored at the time of uniting operation | movement. Further, in the cutout portion 7d, the guide shaft 7d ₁ formed so as to be continuous from the bottom edge portion after locking the support shaft 10 in contact with the bottom edge portion of the cutout portion 7d at the time of the union operation. By moving the support shaft 10 in the direction away from the fulcrum pin 13, the fixed blade 2 is brought close to the rotary blade 1 from the plate surface side having the cutting edge line 2 a of the fixed blade 2, and the fixed blade 2 is brought into contact with the rotary blade 2. Can be pressed. Then, after this movement, the support shaft 10 can be locked to the notch 7d and moored.

Furthermore, the above-described frame 7 connects the other end of the above-described fulcrum pin 13 to the through-hole 7a for attaching the bearing 9 that supports the shaft portion 1c of the rotary blade 1 on both sides in the longitudinal direction that is the cutting width direction. And a tap hole 7b.
Further, on both sides of the frame 7 in the cutting width direction, the locking levers 6 and 6 ′ serving as movable member restraining portions for restraining the link pin 12 serving as the first shaft and positioning the fixed blade 2 are provided. A locking guide 17 to which the locking levers 6 and 6 ′ are attached, a slide guide 18 that supports the locking guide 17 so as to be slidable in a direction substantially orthogonal to the cutting width direction, and the locking levers 6 and 6 ′. A guide pin 16 for guiding the movement and a locking spring 15 for urging the locking levers 6 and 6 'in one direction are provided.

  The above-described locking levers 6 and 6 ′ have different shapes, and are attached to the tap holes 17 b provided in the locking guide 17 with screws 35 using the through holes 6 e and 6 ′ provided in the locking levers 6 and 6 ′. The locking levers 6, 6 ′ are locking portions 6 a, 6 ′ for locking the other end of the link pin 12, and receiving surfaces 6 b, 6 that receive a biasing force from the locking spring 15. 'b, through-holes 6c, 6'c for communicating the above-described guide pin 16, and through-holes 6d, 6' for engaging the protrusions 17a provided on the locking guide 17 to position themselves. d. At the time of uniting, the locking pins 6 and 6 ′ are used to restrain the link pin 12 serving as the first shaft, thereby fixing the gap between the fixed blade 2 attached to the holder 3 and the rotary blade 2 attached to the frame 7. It is possible to reliably restrain and hold the mutual positional relationship determined in (1).

  The above-mentioned locking guide 17 has a shape extended so as to pass in the cutting width direction, and tap holes 17b for attaching and positioning the above-described locking levers 6 and 6 'on both sides in the longitudinal direction. And a projecting portion 17a, a sliding surface 17c for sliding the slide guide 18 described above, and a contact surface 17d capable of contacting the receiving surface 7h provided on the frame 7. When the contact surface 17d of the locking guide 17 abuts against the receiving surface 7h of the frame 7, the movement limit in the urging direction of the locking levers 6 and 6 'by the locking spring 15, that is, the forward limit can be regulated. it can.

  The above-mentioned slide guide 18 was attached to the tap hole 7g provided in the frame 7 with the screw 36 using the through-hole 18a provided in itself. This slide guide 18 prevents interference between the slide surface 18b that enables sliding and separation with the slide surface 17c of the above-described locking guide 17 to which the locking levers 6 and 6 'are attached, and the tip of the screw 35. It has a long hole 18c to avoid it.

The above-described locking spring 15 is brought into contact with the receiving portion 7f provided at the frame 7 at one end and the receiving surfaces 6b and 6'b provided at the locking levers 6 and 6 'at the other end. The latch levers 6 and 6 'are provided to bias the link pins 12 so that the link pins 12 can be moored.
The above-described guide pin 16 has one end attached to the tap hole 7e provided in the frame 7, communicates with itself to the locking spring 15, and the other end has through holes 6c, 6 provided in the locking levers 6 and 6 '. It was provided to guide the movement of the locking levers 6, 6 'by communicating with' c.

Using the cutting device 100 having the above-described configuration, the union operation for combining the fixed blade 2 with the rotary blade 1 and the separation operation for separating the fixed blade 2 were confirmed.
In a state where the fixed blade 2 is separated from the rotary blade 1, as shown in FIGS. 4 and 5, the holder 3 to which the fixed blade 2 is attached and supported by the arm 4 via the support shaft 10 is pressed by the press contact spring 11. By this pressing, the abutting portion 3d of the holder 3 swings around the support shaft 10 to a position where it comes into contact with the stopper bolt 32 of the arm 4 and stops. Further, the arm 4 with which the abutting portion 3d of the holder 3 abuts is supported by the cover 5 via the link pin 12 and is urged by the urging spring 14 provided on the cover 5. The contact part 4e swings around the link pin 12 to a position where it comes into contact with the receiving part 5c of the cover 5 and is stationary. Further, the cover 5 is connected to the frame 7 via the fulcrum pin 13 in a state where it can swing around the fulcrum pin 13 and is stationary.

  At this time, the link pin 12 is disengaged from the locking portions 6a and 6'a of the locking levers 6 and 6 '. In such a separated state, the angle formed by connecting the shafts of the support shaft 10, the link pin 12, and the fulcrum pin 13 was 120 degrees. The angle 120 degrees corresponds to the link angle θ1 shown in FIG.

  When the cover 5 in the separated state is swung in the direction in which the fixed blade 2 is united and the uniting operation of uniting the fixed blade 2 with the rotary blade 1 is performed, as shown in FIG. 6 and FIG. 5 swung around the fulcrum pin 13 while maintaining a link angle of 120 degrees formed by the support shaft 10 and the link pin 12. As a result of this swinging, the support shaft 10 abuts against the bottom edge of the notch 7c of the frame 7, and the support shaft 10 is once locked at the contact position. In the movement operation of the support shaft 10, the cutting edge line 2 a of the fixed blade 2 interferes with the rotary blade 1 until the fixed blade 2 is moved to a predetermined position, that is, to the vicinity away from the plate surface side having the cutting edge line 2 a of the fixed blade 2. It was possible to approach the rotary blade 1 so as not to occur.

Thereafter, when the cover 5 is further swung around the fulcrum pin 13 in the direction in which the fixed blade 2 is combined, as shown in FIGS. 8 and 9, the support shaft once locked to the bottom edge of the notch 7d. 10 moves in a direction away from the fulcrum pin 13 along the guide portion 7d ₁ formed so as to be continuous from the bottom edge portion, and finally comes into contact with a recess formed at the forefront of the guide portion 7d _1. Moored. As the support shaft 10 moves, the arm 4 gradually swings around the link pin 12 and finally stops after swinging until the link angle, which was 120 degrees, becomes approximately 180 degrees. At this time, the link pin 12 contacts the locking levers 6 and 6 ′ and moves the locking levers 6 and 6 ′ against the urging force of the locking spring 15. The bottom edge part of the part 7c was contacted and locked. Then, the locking portions 6a and 6'a of the locking levers 6 and 6 'are hooked on the outer ends of the link pins 12, whereby the link pin 12 is anchored at the contact position at the bottom edge of the notch portion 7c. It was.

  The fixed blade 2 is moved in the direction of the rotary blade 1 by the movement operation of the support shaft 10 and the link pin 12 described above, that is, the uniting operation, and the rotary blade 1 is brought into contact with the rotary blade 1 from the plate surface side having the cutting edge line 2a. I was able to. As a result of this movement, the fixed blade 2 could be brought into pressure contact with the rotary blade 1 at the position where the link angle formed between the support shaft 10 and the link pin 12 was approximately 180 degrees. It was confirmed that the cutting device 100 in the combined state shown in FIG. 1 can be obtained in which the cutting edge line 1a of the rotary blade 1 and the cutting edge line 2a of the fixed blade 2 can be brought into pressure contact with each other with a shear angle.

On the other hand, in the separating operation of the fixed blade 2 in the cutting device 100, first, the locking levers 6 and 6 'applied to the outer end of the link pin 12 are moved against the urging force of the locking spring 15, thereby the link. The pin 12 is separated from the notch 7 c of the frame 7. The spacing movement of the link pin 12, spaced from the recess formed a support shaft 10 to the outermost tip of the guide portion 7d ₁ of the notches 7d of the frame 7, and the state as shown in FIGS. Thereafter, the cover 5 is further swung around the fulcrum pin 13 in a direction away from the frame 7, thereby separating the support shaft 10 from the notch 7 d of the frame 7. It was confirmed that the fixed blade 2 can be separated from the rotary blade 1 in the cutting device 100 by this series of separation operations.

Next, the sheet material was actually cut using the cutting device 100 in the combined state.
A sheet material from the side with the fixed blade 2 from the back side to the near side in FIG. 1 is inserted into the paper passing portion 8 provided between the blade line 1a of the rotary blade 1 and the blade line 2a of the fixed blade 2 in the combined state. (Not shown) was inserted. Thereafter, the rotary blade 1 is rotated in a predetermined direction, and the blade edge line 1a of the rotary blade 1 and the blade edge line 2a of the fixed blade 2 are sequentially meshed from the left side to the right side in FIG. disconnected. At this time, the cut sheet material did not have cutting defects such as scrapes and wrinkles.

  Further, the union operation and the separation operation were repeated using the same cutting device 100, and the cutting of the sheet material was repeated. As a result, neither the cutting edge line 1a of the rotary blade 1 nor the cutting edge line 2a of the fixed blade 2 was damaged by chipping or cracking by visual observation. Moreover, the cutting | disconnection operation | movement of a sheet material can be repeated stably and smoothly, and it has confirmed that the cutting quality of the cut | disconnected sheet material was favorable.

(Printer of the present invention)
A printer of the present invention having a print head and a platen roller mounted with the above-described united separation type sheet material cutting device of the present invention was manufactured.
The appearance of the manufactured printer of the present invention is shown in FIG. Further, regarding the configuration and positional relationship of each member of the printer 101, FIG. 16 shows the print head 42 arrangement side and FIG. 17 shows the platen roller 41 arrangement side. The printer 101 shown in FIG. 15 is in a state where the fixed blade 40 is brought into pressure contact with the rotary blade 1 and is combined, and the print head 42 is pressed against the platen roller 41. The fulcrum pin 13 shown in FIG. The printer 101 shown in FIG. 15 is configured by being inserted into the tap holes 44b of the frame 44 shown in FIG.

In the printer 101, when the rotary blade 1 and the fixed blade 40 are separated, FIG. 18 shows a side view from the right side in FIG. 15, and FIG. 19 shows a cross-sectional view along the line PP shown in FIG. Similarly, when the rotary blade 1 and the fixed blade 40 are combined, a side view is shown in FIG. 20, and a cross-sectional view taken along the line segment PP is shown in FIG. In addition, in each figure, in order to clarify the main part, a part is simplified and shown. The component configuration of the printer 101 is substantially the same as the component configuration of the cutting apparatus 100 described above except that components related to the print head 42 and the platen roller 41 are added to function as a printer.
Hereinafter, a configuration different from the cutting device 100 will be mainly described.

The printer 101 includes a rotary blade 1 and a fixed blade 40 for performing cutting, a platen roller 41 and a print head 42 for conveying a sheet material and printing on the sheet material.
As shown in FIG. 16, the print head side having the fixed blade 40 and the print head 42 has a support shaft 10 serving as a second shaft communicating with the fixed blade 40, and an arm 43 serving as an intermediate swinging portion connecting the support shaft 10. , The print head mounting plate 46 fitted into the arm 43, the link pin 12 serving as the first shaft communicated with the arm 43, the cover 5 serving as the rocking base connecting the link pin 12, and the fixed blade 40 when the united together with the rotary blade 1 And a pressing spring 47 that presses the print head 42 against the platen roller.

On the other hand, as shown in FIG. 17, the platen roller side having the rotary blade 1 and the platen roller 41 includes a frame 44 attached so that the rotary blade 1 and the platen roller 41 can rotate.
The cover 5 on the print head side and the frame 44 on the platen roller side are connected by the fulcrum pin 13 serving as the main shaft so that the cover 5 can rotate around the fulcrum pin 13.

  The fixed blade 40 has a substantially L-shape formed by bending an end portion of a plate-like material extended in the cutting width direction toward the rotary blade 1, and a bent surface formed by bending both side portions in the cutting width direction. The through-hole 40b which enables the support shaft 10 to communicate is provided. More specifically, the fixed blade 40 includes a bent portion 40d bent toward the rotary blade 1 side, a cutting edge line 40a formed on one side edge of the bent portion 40d, and a through hole 40b for communicating the support shaft 10. And the receiving surface 40c that receives the pressure contact force of the pressure spring 45, and the fixed blade 40 by contacting the dowel 43c of the arm 43 when the fixed blade 40 swings around the support shaft 10 in the pressure contact direction with respect to the rotary blade 1. And a support portion 40e for restricting the swinging angle of the shaft.

  The pressing spring 45 for press-contacting the fixed blade 40 to the rotary blade 1 has a movable end 45a at both ends and a fixed end 45b connecting the two coils at the center. The fixed blade 40 is communicated with and supported by the support shaft 10 so that the fixed blade 40 can be pressed against the rotary blade 1 in the swinging direction. As a result, the fixed blade 40 pressed by the pressing force of the press contact spring 45 is swung around the support shaft 10 and pressed against the rotary blade 1.

  The print head 42 has a width dimension adapted to the cutting width, that is, the width of the sheet material, and has a print surface 42a and a mounting surface 42b. The mounting surface 42b is attached to the print head mounting plate 46 with a double-sided tape. It is attached. The print head mounting plate 46 includes a mounting surface 46 a for attaching the print head 42, a receiving surface 46 b that receives the pressing force of the pressing spring 47, and a fitting portion 46 c that fits into the arm 43. Is inserted and held in the receiving portion 43e of the arm 43, and is pressed toward the platen roller 41 by the pressing force of the pressing spring 47. Further, when the fixed head 40 is separated from the rotary blade 1, the print head mounting plate 46 is brought into contact with the receiving portion 43 e of the arm 43 by the pressing force of the pressing spring 47, so When the fixed blade 40 is united, the positional relationship is such that a gap is formed between the fitting portion 46 c and the receiving portion 43 e of the arm 43. As a result, the print head 42 is pressed against the platen roller 41 by the pressing force of the pressing spring 47 via the print head mounting plate 46 when the fixed blade 40 is combined with the rotary blade 1. The approaching direction to 41 is held only by the pressing force of the pressing spring 47, and the sheet material conveyance direction is regulated by the receiving portion 43e.

  The arm 43 includes through-holes 43a and 43a ′ that connect the support shafts 10 provided on both sides in the longitudinal direction that is the cutting width direction, a through-hole 43b that communicates with one end of the link pin 12, and a swing angle of the fixed blade 40. , A receiving portion 43e for contacting the fitting portion 46c of the print head mounting plate 46 biased by the pressing force of the pressing spring 47, and a pressing spring 45. The receiving end 43b for supporting the fixed end 45b and the contact surface 43g for receiving the urging force of the urging spring 14 are connected to the fixed blade 40 via the support shaft 10 and to the cover 5. The link pin 12 is pivotally supported.

  Further, in the arm 43, both sides of the contact surface 43g can be brought into contact with the receiving portion 5c provided on the cover 5, thereby restricting the swing angle of the arm 43 around the link pin 12. And the center position seen from the cutting width direction of the through-holes 43a and 43a 'provided in the arm 43 is such that the cutting edge line 40a of the fixed blade 40 has a biting angle of about 0.3 degrees with respect to the rotary blade 1. It is formed to be shifted.

The frame 44 has a notch portion 44c serving as a first shaft anchoring portion for anchoring the link pin 12 serving as the first shaft and a support shaft serving as the second shaft when the fixed blade 40 is combined with the rotary blade 1 on both sides thereof. 10 once in a second the shaft anchoring portions notches 44d having a guide portion 44d ₁ for guiding the separating direction from the fulcrum pin 13 as a main shaft after locking the. Incidentally, the cutout portion 44d having a guide portion 44d ₁ formed on both sides of the frame 44, upon coalescence of the fixed blade 40 with respect to the rotary blade 1, the through hole 43a of the arm 43, support shaft 10 communicating with the 43a ' The positional relationship is set so that it can be inserted.

  The frame 44 has a through hole 44 a for attaching the bearing 9 that supports the shaft portion 1 c of the rotary blade 1 on both sides in the longitudinal direction that is the cutting width direction, and a bearing that supports the support shaft 41 a of the platen roller 41. A through hole 44g for attaching 48, a tap hole 44b for connecting the other end of the fulcrum pin 13, an attachment portion 44e for attaching the locking spring 15, and a tap hole 44h for attaching one end of the locking pin 51. And a locking dowel 44k that restricts the swinging of the locking levers 50, 50 ′ in the locking direction during separation.

  Then, on both sides of the frame 44 corresponding to the cutting width direction, a movable member that swings around the locking pin 51 and positions the fixed blade 40 by restraining the link pin 12 serving as the first shaft. The locking levers 50 and 50 ′ serving as the restraining portions and the above-described locking spring 15 for biasing the locking levers 50 and 50 ′ in one direction are provided.

  The locking levers 50, 50 ′ have different shapes, and the urging force from the locking portions 50 a, 50 ′ a for locking the other end of the link pin 12 and the locking spring 15 is provided. Receiving portions 50b and 50'b for receiving and through holes 50c and 50'c for communicating the locking pin 51 are provided. The locking levers 50 and 50 ′ are connected to the frame 44 by a locking pin 51, and are prevented from coming off by inserting an E-ring 52 into the groove 51 a.

  In the printer 101 having the above-described configuration, when the operation of combining the fixed blade 40 with the rotary blade 1 is performed, the fixed blade 40 has a moving track whose cutting edge line 40a is indicated by the arrow 203 and the arrow 204 in FIG. Through (1) and (2), it was confirmed that the rotating blade 1 was smoothly combined as shown in FIG. At the same time, it was confirmed that the print head 42 was smoothly united and pressed against the platen roller 41 without any particular problem. Then, when the separation operation of the fixed blade 40 from the rotary blade 1 is performed, the fixed blade 40 can be smoothly separated without any particular trouble, and at the same time, the print head 42 can be separated. Moreover, it was able to be separated smoothly without any special problems.

  Next, an operation for rotating the platen roller 41 after setting the sheet material (not shown) between the print head 42 and the platen roller 41 so that the fixed blade 40 is combined with the rotary blade 1 is performed. As a result, it was confirmed that the sheet material passed and conveyed through the paper passing portion 8 defined between the rotary blade 1 and the fixed blade 40 without any particular problems. At the same time, it was confirmed that the printing with respect to the sheet material by the print head 42 was performed without any particular problem. And the rotary blade 1 was rotated, the rotary blade 1 and the fixed blade 40 were meshed, and the sheet | seat material was able to be cut | disconnected. Further, as a result of repeatedly performing the sheet material conveying operation, the sheet material printing operation, and the sheet material cutting operation using the printer 101, for example, the occurrence of an unprinted portion, the sheet material meandering, the edge of the cut sheet material There were no special problems such as cutting quality reductions.

1. Rotary blade, 1a. Cutting edge line, 1b. Shank part, 1c. Shaft, 1d. Blade part, 2. Fixed blade, 2a. Cutting edge line, 3. Holder, 3a. Fixed blade mounting surface, 3b. Through hole, 3c. Bearing surface, 3d. Padding part, 4. Arms, 4a, 4a ′. Through hole, 4b. Through hole, 4c. Support part, 4d. Tap holes, 4e. 4. Contact part, Cover, 5a. Tap holes, 5b. Through hole, 5c. Receiving part, 5d. Tap holes, 6, 6 '. Locking lever, 6a, 6a '. Locking part, 6b, 6b '. Receiving surface, 6c, 6c '. Through holes, 6d, 6d '. Through-holes, 6e, 6e ′. 6. a through hole; Frame, 7a. A through hole, 7b. Tap holes, 7c. Notch, 7d. Notch, 7d ₁ . Guide, 7e. Tap holes, 7f. Receiving part, 7 g. Tap holes, 7h. Receiving surface, 8. 8. Paper passing section, 9. Bearing, 10. Support shaft, 10a. Groove, 11. Pressure spring, 12. Link pin, 13 fulcrum pins, 14. Biasing spring, 14a. A through hole, 14b. Urging section, 15. Locking spring, 16. Guide pins, 17. Locking guide, 17a. Protrusions, 17b. Tap holes, 17c. Sliding surface, 17d. Bearing surface, 18. Slide guide, 18a. A through hole, 18b. Slide surface, 18c. Long hole, 31. C-type retaining ring, 32. Stopper pin, 33. E-ring, 34-36. Screws, 40. Fixed blade, 40a. Cutting edge line, 40b. Through hole, 40c. Receiving surface, 40d. Bend, 40e. Padding part, 41. Platen roller, 41a. Spindle, 42. Print head, 42a. Printing surface, 42b. Mounting surface, 43. Arms, 43a, 43a ′, 43b. Through-hole, 43c. Dubbo, 43d. Support part, 43e. Receiving part, 43f. Receiving surface, 43 g. Bearing surface, 44. Frame, 44a. Through-hole, 44b. Tap holes, 44c, 44d. Notch, 44d ₁ . Guide section, 44e. Attachment part, 44 g. Through-hole, 44h. Tap holes, 44 k. Locking dowels, 45. Pressure spring, 45a. Movable end, 45b. Fixed end, 46. Print head mounting plate, 46a. Mounting surface, 46b. Receiving surface, 46c. Insertion part, 47. Pressure spring, 48. Bearing, 50, 50 '. Locking lever, 50a, 50'a. Locking part, 50b, 50'b. Receiving part, 50c, 50'c. Through hole, 51. Locking pin, 51a. Groove, 52. E-ring, 100. Cutting device 101. Printer, 200. Cutting device 201. Rotary blade, 201a. Cutting edge line, 202. Fixed blade, 202a. Cutting edge line, 202b. Plate surface, 203-205. Arrow, 206. Fixed blade, 206a. Cutting edge line, 206b. Plate surface, 206c. Bending part, 211. Rotary blade holding member, 212. Fixed blade holding member, 213. Main shaft, 214. Oscillating base, 215. First axis, 216. Intermediate swinging part, 217. Second axis, 218. Fixed blade mounting portion, 219. Pressure contact member, 220. First shaft mooring part, 221. Second shaft mooring part, 221a. Guide part, 222-224. Arrow

Claims (7)

A fixed blade having a cutting edge extended in the cutting width direction and a rotary blade having a cutting edge extended in the cutting width direction are arranged so as to be separable from each other, and the fixed blade and the rotating blade have a shearing angle by combining. a sheet cutting apparatus for cutting the sheet material by meshing pressed against said fixed blade by moving the track that will not interfere with the rotary blade and the fixed blade that close to a predetermined position relative to the rotary blade The fixed blade is moved toward the rotary blade by using the first movement and then guide portions (7d ₁ , 44d ₁ , 221a) for guiding the moving track of the fixed blade, and the cutting edge of the fixed blade united separative sheet material cutting device, characterized in that by the second movement of the fixed blade Ru brought into contact with the rotary blade from the plate surface, to coalesce the fixed blade to the rotating blade having.   The united separation type sheet material cutting device according to claim 1 includes a fixed blade holding member having the fixed blade, a rotary blade holding member having the rotary blade, and the fixed blade holding member extended in a cutting width direction. A main shaft that rotatably connects the rotary blade holding member, and the fixed blade holding member includes a swing base that is swingably connected to the main shaft, and the main shaft via the swing base. A first shaft coupled in parallel to the first shaft, an intermediate rocking portion coupled to the first shaft so as to be rockable, and a second shaft coupled substantially parallel to the main shaft via the intermediate rocking portion. A fixed blade mounting portion that is swingably connected to the second shaft, and the rotary blade holding member is a first shaft mooring portion that can moor the first shaft, and the second shaft is moored. And a second shaft anchoring portion having a guide portion that guides the second shaft in a direction away from the main shaft, and the second shaft is By moving the fixed blade around the shaft until it comes into contact with the second shaft mooring portion, the fixed blade is moved along a trajectory that does not interfere with the rotary blade, and is brought close to a predetermined position with respect to the rotary blade. The second shaft is moved in the direction away from the main shaft at the guide portion of the second shaft mooring portion by moving one shaft around the main shaft until it contacts the first shaft mooring portion, and the fixed A united separation type sheet material cutting apparatus, wherein a blade is moved toward the rotary blade and brought into contact with the rotary blade to be combined.   The rotary blade holding member includes a movable member restraining portion that determines the positional relationship between the fixed blade and the rotary blade by restraining the first shaft or the second shaft when uniting with the fixed blade holding member. The coalescing / separating sheet material cutting device according to claim 2, comprising:   The union separation type sheet material cutting device according to claim 2 or 3, wherein the second shaft mooring portion has an anchoring portion capable of mooring the fixed blade at a position in contact with the rotary blade.   5. The fixed blade holding member has a substantially flat portion extended in a cutting width direction, and an edge of the substantially flat portion forms a cutting edge line of the fixed blade. The united separation type sheet material cutting device according to claim 1.   A printer equipped with the united separation type sheet material cutting device according to any one of claims 2 to 5, wherein the printer has a print head member having a print head, and the print head member has the fixed blade. A printer, wherein the printer is disposed so as to be rotatable with respect to the oscillating base that is rotatably connected to a fixed blade holding member. The printer has a platen roller member having a platen roller, and the platen roller member is rotatably disposed so as to be positioned facing the print head member when the fixed blade and the rotary blade are combined. The printer according to claim 6.