WO2011030543A1 - プリンタ装置及びローラアッセンブリ - Google Patents
プリンタ装置及びローラアッセンブリ Download PDFInfo
- Publication number
- WO2011030543A1 WO2011030543A1 PCT/JP2010/005502 JP2010005502W WO2011030543A1 WO 2011030543 A1 WO2011030543 A1 WO 2011030543A1 JP 2010005502 W JP2010005502 W JP 2010005502W WO 2011030543 A1 WO2011030543 A1 WO 2011030543A1
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- WIPO (PCT)
- Prior art keywords
- roller
- medium
- print medium
- printer
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0035—Handling copy materials differing in thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
- B41J13/025—Special roller holding or lifting means, e.g. for temporarily raising one roller of a pair of nipping rollers for inserting printing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
- B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
- B65H2404/1442—Tripping arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/60—Other elements in face contact with handled material
- B65H2404/69—Other means designated for special purpose
- B65H2404/694—Non driven means for pressing the handled material on forwarding or guiding elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1131—Size of sheets
- B65H2701/11312—Size of sheets large formats, i.e. above A3
Definitions
- the present invention relates to a printer apparatus that prints on a print medium by ejecting ink from a printer head. More specifically, the present invention relates to a printer apparatus capable of printing on a sheet-like or plate-like print medium, and the printer apparatus. The present invention relates to a roller assembly used.
- a control for feeding a sheet-like print medium (hereinafter referred to as a sheet-like medium) back and forth with respect to the platen is combined with a control for ejecting ink while moving the printer head facing the platen to the left and right.
- a printer device inkjet printer
- a plate-like print medium hereinafter referred to as a plate-like medium
- a configuration is known in which support members for horizontally supporting a plate-like medium are provided on the front and rear sides of the platen. With this configuration, the plate-like medium can be fed back and forth while being supported horizontally, and printing on the plate-like medium becomes possible.
- the first support arm 101 and the second support arm 103 are provided before and after the platen 10 to horizontally support the plate-like medium 20, and the feed roller 15 is rotated.
- the structure which moves the plate-shaped medium 20 back and forth is disclosed.
- the lower surface of the plate-shaped medium 20 moves back and forth while sliding with respect to the upper surface of the platen 10.
- roller assemblies each having a rotatable pinch roller are provided at predetermined intervals in the left-right direction above the feed roller so that the print medium does not partially slide on the feed roller.
- Some roller assemblies are configured so that the clamp state of the print medium can be changed. For example, depending on the material or thickness of the print medium, the pressing force of the pinch roller that presses against the feed roller (referred to as clamp pressure) is used.
- clamp pressure the pressing force of the pinch roller that presses against the feed roller
- the clamp engagement / disengagement mechanism, clamp pressure setting mechanism, etc. are rollers.
- Each assembly is provided independently, and the clamp pressure can be set in a plurality of stages (for example, three stages of strong, medium, and weak). For this reason, when processing sheet-like media with different materials, shapes, etc., it is necessary to adjust the clamp lever and clamp pressure setting lever for each roller assembly for each roller assembly, and fine adjustment is possible.
- the setting work is complicated while it is multifunctional.
- the present invention has been devised in view of such conventional circumstances, and has a simple configuration and is suitable for printing media having various materials / thicknesses such as a sheet shape and a plate shape. It is an object of the present invention to provide a printer apparatus and a roller assembly that can be clamped and can be fed accurately.
- a printer apparatus wherein the printer head is moved relative to the print medium supported by the medium support means for supporting the print medium in a state where the printer head is opposed to each other in a conveying direction and a scanning direction orthogonal to each other.
- a printer device that prints on a print medium by ejecting ink while being fed to a left and right at substantially the same height as the upper surface of the medium support means, and a rotationally driven feed roller, and each rotatable pinch A roller has a plurality of roller assemblies provided side by side above the feed roller, and the print medium placed on the medium support means is sandwiched between the feed roller and the pinch roller before and after A transport mechanism for transporting, a head moving mechanism for moving the printer head in the scanning direction, feed control of the print medium by the medium transport mechanism, and the head.
- a printing control unit that controls the movement of the printer head by a moving mechanism, and the roller assembly includes an assembly body and the pinch roller, and is a roller member that can be attached / detached to / from the assembly body.
- the clamp state can be changed by exchanging the roller member according to the material and / or thickness of the print medium.
- the printer device according to claim 2 of the present invention is the printer device according to claim 1, wherein, when the printing medium is a sheet, the roller member includes one pinch roller having a relatively large diameter, It is characterized by.
- the roller member in the printer device according to the first aspect, when the printing medium is plate-shaped, the roller member has a relatively small diameter and is arranged in a plurality spaced apart in the left-right direction. It is characterized by having a pinch roller.
- the roller assembly moves the printer head relative to the print medium supported by the medium support means for supporting the print medium in a state where the printer head is opposed to each other in the transport direction and the scanning direction orthogonal to each other.
- the clamp member can be changed by exchanging the roller member according to the material and / or thickness of the print medium.
- the roller assembly according to claim 5 of the present invention is the roller assembly according to claim 4, wherein, when the print medium is a sheet, the roller member includes one pinch roller having a relatively large diameter. It is characterized by.
- a roller assembly according to a sixth aspect of the present invention is the roller assembly according to the fourth aspect, wherein when the printing medium is plate-shaped, the roller member has a relatively small diameter and is spaced apart in the left-right direction. It is characterized by having a pinch roller.
- the clamp state can be changed by replacing the roller member according to the material and / or thickness of the print medium. Clamps suitable for print media having various materials / thicknesses can be obtained.
- FIG. 1 is a perspective view showing a printer apparatus (a state where printing is performed on a sheet-like medium) to which the present invention is applied. It is the perspective view which showed the printing unit vicinity of the said printer apparatus. It is the perspective view which looked at the said printer apparatus (state which prints with respect to a plate-shaped medium) from diagonally forward. It is the perspective view which looked at the said printer apparatus (state which prints with respect to a plate-shaped medium) from diagonally backward. It is an external appearance perspective view of the roller assembly of this invention used for the said printer apparatus. It is a sectional side view of the said roller assembly. It is a perspective view of the clamp base used for the said roller assembly. It is a perspective view which shows an example of the roller member used when a printing medium is a sheet form.
- FIG. 9 It is a perspective view which shows the state which attached the roller member shown in FIG. 9 to the clamp base. It is a perspective view which shows an example of the roller member used when a printing medium is plate shape. It is a perspective view which shows the state which attached the roller member shown in FIG. 10 to the clamp base. It is explanatory drawing for demonstrating the structure and effect
- FIG. 1 is a diagram illustrating a configuration example of a printer apparatus according to the present invention.
- the printer apparatus of the present invention ejects ink while moving the printer head relative to the print medium supported by the medium support means for supporting the print medium in a conveying direction and a scanning direction orthogonal to each other.
- a printer device that prints on a print medium.
- a feed roller that is provided to extend to the left and right at substantially the same height as the upper surface of the medium support means and is rotationally driven, and a rotatable pinch roller are provided side by side above the feed roller.
- a print control unit that performs print medium feeding control by the medium transport mechanism and movement control of the printer head by the head movement mechanism.
- the roller assembly includes an assembly main body and the pinch roller, and includes a roller member that can be attached / detached to / from the assembly main body.
- the clamping state can be changed by exchanging the roller member according to the thickness.
- the clamp state can be changed by replacing the roller member according to the material and / or thickness of the print medium. Clamps suitable for print media having various materials / thicknesses can be obtained. As a result, the printer apparatus of the present invention can accurately feed according to print media having various materials / thicknesses such as a sheet shape and a plate shape.
- the configuration of the printer apparatus 10 to which the present invention is applied will be described with reference to FIGS.
- the printer apparatus 10 originally has a configuration as shown in FIG. 1 and can print on the sheet-like medium S using this configuration.
- a rear support base 60 and a front support base 70 described later are attached to the printer device 10.
- the printer device 10 can print on both the sheet-like medium S and the plate-like medium.
- UV ink ultraviolet curable ink
- the printer device 10 is provided on a left side of the support body 11 having left and right support legs 11 a and 11 b, a center body part 12 supported by the support legs 11, and the center body part 12.
- the central body portion 12 is provided with a flat platen 13 that is exposed on the upper surface and extends to the left and right.
- an operation portion 18 composed of operation switches, display devices, and the like is provided on the front side of the left end portion of the central body portion 12.
- a controller 19 is built in the left end of the central body 12.
- the controller 19 outputs an operation signal to each capital city of the printer device 10 to be described later, and performs drive control of each component.
- a vertical movement mechanism (not shown), a front and rear drive motor 25, a printer head 32, a right ultraviolet irradiation device 33R, a left ultraviolet irradiation device 33L, a left and right driving motor 39, and the like are controlled to be described later. It has become.
- a guide rail 17 that extends to the left and right is provided on the lower front side of the upper body portion 16.
- a printing unit 30 is attached to the guide rail 17 so as to be movable left and right.
- the printing unit 30 is mainly composed of a carriage 31, a printer head 32, a right ultraviolet irradiation device 33R, and a left ultraviolet irradiation device 33L.
- the printing unit 30 includes a vertical movement mechanism (not shown) that moves the printing unit 30 up and down with respect to, for example, the guide rail 17 according to the thickness of the printing medium (sheet medium S or plate medium B) to be printed. Z). With this vertical movement mechanism, the interval between the printer head 32 and the print medium can be set to a predetermined interval suitable for printing regardless of the thickness of the print medium to be used.
- a left and right conveying belt (not shown) arranged extending left and right inside the upper body portion 16 and a carriage 31 are connected.
- the left and right conveying belt is driven by a left and right drive motor 39 (see Time 1) provided in the right body portion 15.
- the rear surface side of the carriage 31 is fitted with the guide rail 17 and can be reciprocated to the left and right along the guide rail 17.
- the carriage 31 is a mounting base for the printer head 32, the right ultraviolet irradiation device 33R, and the left ultraviolet irradiation device 33L.
- the printer head 32 includes, for example, a magenta head, a yellow head, a cyan head, and a black head.
- a plurality of discharge nozzles (not shown) for discharging UV ink downward are formed on the lower surface of each printer head 32.
- the right ultraviolet irradiation device 33 ⁇ / b> R is mounted adjacent to the right side of the printer head 32.
- the right ultraviolet irradiation device 33R has a light source such as an LED for irradiating ultraviolet rays inside, and the ultraviolet light from the light source is irradiated downward.
- the left ultraviolet irradiation device 33L has the same configuration as the right ultraviolet irradiation device 33R and is mounted adjacent to the left side of the printer head 32.
- the UV ink ejected from the printer head 32 and attached to the print medium can be reliably cured by the ultraviolet rays irradiated from the right ultraviolet irradiation device 33R and the left ultraviolet irradiation device 33L
- a plurality of roller assemblies 100 are attached to the lower portion of the upper body portion 16 side by side.
- a pinch roller 131 is rotatably attached to the front end portion of the roller assembly 100.
- a cylindrical feed roller 21 that extends to the left and right is disposed so as to protrude from the upper surface of the platen 13.
- the feed roller 21 is rotationally driven by, for example, a front / rear drive motor (not shown) provided inside the central body portion 12.
- the roller assembly 100 can be set to a clamp position where the pinch roller 131 is pressed against the feed roller 21 and an unclamp position where the pinch roller 131 is separated. With this configuration, the print medium is sandwiched between the pinch roller 131 and the feed roller 21, the clamp device 23 is set at the clamp position, and the feed roller 21 is rotated, so that the print medium is moved forward or backward by a predetermined distance. Can be sent to.
- the portion of the surface of the feed roller 21 that comes into contact with the pinch roller 131 is fixed with, for example, a metal mesh member 22 attached thereto. With this configuration, the contact resistance between the feed roller 21 and the print medium can be increased, and the sheet can be fed back and forth with high accuracy without causing a slip.
- the clamp state is changed by replacing the roller member 130 according to the material and / or thickness of the print medium such as a sheet or plate.
- the material and / or thickness of the print medium such as a sheet or plate.
- a specific configuration of the roller assembly 100 in the printer apparatus of the present invention will be described in detail later.
- a plurality of suction holes 13A are formed in the platen 13, and a decompression chamber (not shown) communicating with the suction holes 13A is provided on the lower surface of the platen 13.
- a decompression chamber (not shown) communicating with the suction holes 13A is provided on the lower surface of the platen 13.
- the printer device 10 includes a plurality of support rollers 41 for the purpose of feeding the plate-like medium B back and forth with high accuracy, particularly when printing is performed on the plate-like medium B.
- the conveyance auxiliary member 40 is provided on the platen 13.
- a rear support 60 is provided behind the printer device 10 in order to support the plate-like medium B substantially horizontally.
- the front support 70 is attached to the front (see FIGS. 3 and 4).
- the configuration of the rear support base 60 will be described with additional reference to FIG. Since the front support base 70 has the same configuration as the rear support base 60, the description thereof is omitted.
- the rear support base 60 is supported by a support leg 63, which is swingably supported by a support leg 63 having a front and rear length of about 1.2 m in which a plurality of transport rollers 62 are arranged side by side. Configured.
- An inclination adjustment plate 64 is attached so as to connect the transport rail 61 and the support leg 63, and the inclination adjustment plate 64 is attached to the support leg 63 so as to be swingable.
- a long hole 65 is formed in the tilt adjusting plate 64.
- the inclination adjusting plate 64 and the transport rail 61 can be fixed by inserting the fixing screw 66 through the elongated hole 65 and fastening to the transport rail 61, and the tilt angle of the transport rail 61 with respect to the support leg 63 can be arbitrarily set. Can be set.
- the transport rail 61 can be fixed in a substantially horizontal state, or the transport rail 61 can be tilted downward and folded. Since the rear support base 60 can be stored in a compactly folded state when not in use, it is possible to save the storage space.
- FIG. 5 is an external view
- FIG. 6 is a side cross-sectional view at the left and right center.
- the roller assembly includes an assembly case 110 that forms a frame of the assembly, a clamp base 120 that is swingably supported by a lower portion of the assembly case 110 via a swing shaft 114 that extends to the left and right, and a front end portion of the clamp base 120.
- a pair of left and right coil springs 140 that urge the clamp base 120 that is hooked and supported by the swing shaft 114 in the clockwise direction in FIG.
- the assembly case 110 has a front portion partitioned by a wall surface in three upper and lower stages.
- a lever (referred to as a clamp pressure setting lever) 165 is pivotally attached by a lever shaft 115 extending in the vertical direction and can swing independently from side to side.
- a shaft engaging portion 116 that is locked to a support shaft that supports the roller assembly is formed at the rear portion of the assembly case 110, and a screw insertion hole for fixing the roller assembly 100 is formed at an upper portion in front of the case.
- Fixed flange portions 117 are formed at two places on the left and right.
- FIG. 7 is a view showing the clamp base 120 extracted.
- the clamp base 120 is supported by a swing shaft 114 that is attached to connect the left and right side walls of the assembly case 110 so as to be swingable, and is a flat base plate portion 121 that extends back and forth.
- a wall-like lever engaging portion 122 projecting upward from the base plate portion 121 and extending in parallel with the swing shaft 114, and a spring support pivotally supported by a support shaft hole penetrating the upper end of the lever engaging portion 122 from side to side.
- a shaft 123 is a view showing the clamp base 120 extracted.
- the clamp base 120 is supported by a swing shaft 114 that is attached to connect the left and right side walls of the assembly case 110 so as to be swingable, and is a flat base plate portion 121 that extends back and forth.
- a wall-like lever engaging portion 122 projecting upward from the base plate portion 121 and extending in parallel with the swing shaft 114, and a spring support pivotally supported by a support shaft
- a roller member 130 having a pinch roller 131 is disposed at the tip of the base plate portion 121 so as to be attachable / detachable.
- the roller member 130 is selectively used according to a print medium having a wide variety of materials / thicknesses, depending on whether the print medium is a sheet or a plate. Accordingly, it is possible to perform a clamp suitable for the print medium, and it is possible to feed accurately.
- FIG. 8 shows a roller member 130A used when the print medium is a sheet
- FIG. 9 shows a state where the roller member 130A is attached to the clamp base 120.
- the roller member 130A When the printing medium is a sheet, the roller member 130A includes a single pinch roller 131A having a relatively large diameter.
- the roller member 130A rotatably supports the pinch roller 131A with a roller pin 132.
- the roller member 130A can be attached to the distal end portion of the clamp base 120 without generating backlash.
- the roller member 130 is attached to the clamp base 120 in the extracted state, but the clamp base 120 is actually supported by the assembly case 110. In this state, the roller member 130 is attached to the clamp base 120 (which constitutes the assembly body).
- the print medium is a sheet (roll medium)
- printing is performed by running the medium at a high speed, so the bearing during printing, that is, the print medium, is more stable than pressing the medium firmly like a plate-like medium described later. It is important to make it run.
- the roller member 130A includes only one pinch roller 131A. This makes it possible to reduce friction between the pinch roller 131A and the print medium and allow the print medium to travel stably.
- the diameter of the pinch roller 131A is relatively larger than that of the plate (pinch roller 131B) according to the thickness of the medium because the medium is thin.
- FIG. 10 shows a roller member 130B used when the printing medium is plate-shaped
- FIG. 11 shows a state where the roller member 130B is attached to the clamp base 120.
- the roller member 130B has a plurality of pinch rollers 131B having a relatively small diameter and spaced apart in the left-right direction.
- the roller member 130B pivotally supports the pinch roller 131B by the roller pin 132 so as to be rotatable.
- the roller member 130B can be attached to the distal end portion of the clamp base 120 without generating backlash.
- the roller member 130B includes a plurality of pinch rollers 131B that are spaced apart from each other, so that the pressing width can be increased and the medium can be pressed firmly.
- the present invention is not limited to this, and for example, three or more pinch rollers may be provided.
- the thickness of the medium is thick, so the diameter of the pinch roller 131B is relatively smaller than that of the sheet-shaped case (pinch roller 131A) in accordance with the thickness of the medium.
- the number of pinch rollers / type of pinch rollers / clamps depends on the print media having various materials / thicknesses, and here, depending on whether the print media is a sheet or plate.
- a support shaft insertion hole 113 through which the spring support shaft 123 is inserted is formed in accordance with the swing locus of the spring support shaft 123, and the spring
- the left and right ends of the support shaft 123 are disposed so as to protrude outward from the assembly case 110.
- E-rings are fitted to the left and right ends of the spring support shaft 123 so that the coil spring 140 hooked on the spring support shaft 123 cannot be easily removed.
- the other end side of the coil spring 140 is hooked on a spring support shaft 163 fitted into the cam slider 168 of the clamp pressure setting mechanism 160, and the spring support shaft 123 on the clamp base side and the spring support shaft 163 on the assembly case side
- the spring support shaft 123 is pulled with a spring force (tension) corresponding to the distance between the shafts, and the clamp base 120 supported by the swing shaft 114 rotates clockwise (in the direction in which the pinch roller 131 is moved downward) in FIG. Be energized.
- E-rings are also fitted to the left and right ends of the spring support shaft 163 so that the hooked coil spring 140 cannot be easily removed.
- the clamp engagement / disengagement mechanism 150 feeds the pinch roller 131 to the clamp position where the pinch roller 131 is pressed against the feed roller 21 and clamps the print medium (clamp ON).
- This is a clamp state setting mechanism that can be switched to an open position (clamp OFF) that is spaced above the roller 21 to release the print medium.
- FIG. 6A is a plan view of the clamp ON state and the clamp OFF state in which the clamp lever 155 is positioned at the left swing angle position and the roller assembly 100 is set to the open position.
- the figure is shown as a side view seen from the right side of FIG.
- the configuration of each part of the assembly case 110 and the clamp pressure setting mechanism 160 is omitted as appropriate.
- the clamp engagement / disengagement mechanism 150 mainly includes a lever engagement portion 122 of the clamp base 120 and a clamp lever 155.
- the clamp lever 155 has a hook shape extending forward and backward with the lever shaft 115 interposed therebetween, and is pivotally supported by the assembly case so as to swing left and right about the lever shaft 115.
- the front end side of the clamp lever 155 extending forward from the lever shaft 115 is positioned above the pinch roller 131 and protrudes forward from the assembly case 110 to form a lever portion 156 that can be operated with a finger.
- the rear end side of the clamp lever 155 is formed in a cam shape (Y-shaped cam shape in the illustrated embodiment), the OFF locking surface 157f having a large radial dimension from the lever shaft 115 on the right side, and the lever shaft 115 on the left side.
- An ON locking surface 157n having a small radial dimension is formed.
- the OFF engaging surface 157f engages with the lever engaging portion 122 of the clamp base 120 when the clamp lever 155 is set to the right OFF position, and the lever engaging portion 122 resists the biasing force of the coil spring 140. Is pushed backward, and the pinch roller 131 at the front end of the clamp base is held at the open position (clamp OFF) spaced above the feed roller 21.
- the ON engagement surface 157n (and the left end corner portion 157p of the OFF engagement surface 157f) can be engaged with the lever engagement portion 122 when the clamp lever 155 is set to the left ON side, and the coil spring
- the pinch roller 131 is held at the clamp position (clamp ON) pressed against the peripheral surface (upper surface) of the feed roller 21 by the urging force 140.
- the clamp pressure setting mechanism 160 is a clamp state setting mechanism that can be set by changing the pressing force of the pinch roller 131 at a clamp position where the pinch roller 131 is pressed against the feed roller 21 to sandwich the print medium.
- FIGS. 13A and 13B show a case where the clamp pressure setting mechanism 160 is set in three stages of strong, medium and weak.
- the relationship between the clamp pressure setting lever 165 and the setting state of the coil spring 140 is shown as (a) a plan view seen in the direction of arrow VII in FIG. 6 and (b) a perspective view of the roller assembly.
- the configuration of each part of the assembly case 110 and the clamp engagement / disengagement mechanism 150 is omitted as appropriate. is doing.
- the clamp pressure setting lever 165 has a rhombus shape that expands forward from the lever shaft 115 in a plan view and then becomes tapered, and is positioned above the clamp lever 155 of the clamp engagement / disengagement mechanism. It is pivotally supported as a center so that it can swing left and right. A front end side of the clamp pressure setting lever 165 protrudes forward from the assembly case 110 to form a lever portion 166 that can be operated with a finger.
- the clamp pressure setting lever 165 is formed in a stepped shape with a base end thicker than the lever portion 166, and a cam surface 167 having a waveform in a plan view is formed on the standing surface of the step.
- the cam surface 167 is formed with three locking recesses that engage with the engaging projection 169 at the tip of the cam slider 168 to lock the cam slider 168, and the radial dimension from the lever shaft 115 is small in order from the right side.
- the cam slider 168 that engages with the cam surface 167 is supported between the body portion 168a having a rectangular section in the front and rear direction and the upper surface of the clamp pressure setting lever and the assembly case 110 projecting left and right from the body portion 168a.
- a spring support shaft 163 is fitted into a support shaft hole that has a support portion 168b and penetrates the body portion 168a to the left and right (see FIG. 5).
- the assembly case 110 is formed with a shaft insertion groove through which the spring support shaft 163 is inserted in the left and right side walls.
- the upper wall has a slit-like slide that matches the width of the body portion 168a of the cam slider 168.
- a groove 118 is formed, the upper part of the body portion is fitted into the slide groove 118, and the cam slider 168 is supported between the upper surface of the clamp pressure setting lever 165 and the upper wall surface of the assembly case 110 so as to be slidable only in the front-rear direction.
- the spring force of the coil spring 140 stretched around the spring support shafts 123 to 163 is always urged rearward (see FIGS. 5 and 6).
- an arc-shaped engaging convex portion 169 is formed in a plan view, and this engaging convex portion 169 engages with the cam surface 167 of the clamp pressure setting lever and is formed on the cam surface.
- the three locking recesses 167w, 167m, and 167s are stably supported.
- the clamp pressure setting lever 165 when the clamp pressure setting lever 165 is swung left and right against the spring force of the coil spring 140, the engaging convex portion 169 that engages with the cam surface 167 of the clamp pressure setting lever slides on the cam surface.
- the clamp pressure setting lever 165 can be latched and held at an angular position engaged with any one of the three locking recesses 167w, 167m, and 167s formed on the cam surface 167 by sliding displacement back and forth.
- These three locking recesses 167w, 167m, 167s have different radial dimensions from the lever shaft 115 as described above, and the radial dimension is such that weak locking recess 167w ⁇ intermediate locking recess 167m ⁇ strong. It is a locking recess 167s. For this reason, when the engaging convex portion 169 is engaged and held in each locking concave portion, the arrangement position of the spring support shaft 163 changes back and forth, and the coil spring 140 spanned between the spring support shafts 123 to 163 is changed. The set length d changes.
- Ds ⁇ dm ⁇ ds where ds is a set length when the engagement is held, and a spring force corresponding to the set length, that is, a pressing force (clamping pressure) for pressing the pinch roller 131 against the feed roller 21 Changes to three levels: weak, medium and strong depending on the set length.
- the clamp pressure setting lever 165 is swung left and right to engage and hold the engagement convex portion 169 with the engagement concave portions 167w, 167m, and 167s, thereby reducing the clamp pressure. It can be set by changing to 3 levels of medium and strong.
- the printer device and roller assembly of the present invention depending on the printing medium having various materials / thicknesses, here, depending on whether the printing medium is a sheet or a plate, Different roller members having different numbers of pinch rollers / pinch roller types / clamp heights (pinch roller diameters) are used. Accordingly, in the present invention, it is possible to perform clamping suitable for various print media with a simple configuration, and it is possible to feed accurately.
- the printer apparatus of the present invention has been described above, the present invention is not limited to the above-described example, and can be appropriately changed without departing from the spirit of the invention.
- the configuration in which printing is performed using the UV ink has been described.
- the present invention is also applied to a printer apparatus that uses, for example, water-based ink, oil-based ink, or solvent ink. Can be applied.
- the present invention is not limited to this, and the sheet medium is between
- different roller members may be used depending on the material / thickness.
- different roller members may be used between the plate-like media depending on the material / thickness.
- the present invention is widely applicable to printer apparatuses that print on a print medium by ejecting ink from a printer head.
- B plate medium (print medium, plate print medium), S sheet medium (print medium), 10 printer device, 13 platen (medium support means), 19 controller (print control unit), 21 feed roller (clamping roller) ), 131 pinch roller (clamping roller), 25 front / rear drive motor (medium transport mechanism), 32 printer head, 39 left / right drive motor (head moving mechanism), 40 transport auxiliary member, 41 support roller (rotary member), 42 shaft member (Support shaft), 60 rear support base (upstream support base), 61 transport rail (medium support rail), 63 support leg (rail support leg), 70 front support base (downstream support base), 100 roller assembly, 120 Clamp base, 130A, 130B (130) Roller member, 131A, 131B (131) Pinch Over La, 150 clamp switch mechanism 160 clamping pressure setting mechanism.
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- Ink Jet (AREA)
Abstract
Description
ローラアッセンブリには、印刷媒体のクランプ状態を変更可能に構成されたものがあり、例えば、印刷媒体の材質や厚さ等に応じて、送りローラに押し付けるピンチローラの押圧力(クランプ圧という)を変化させて設定可能なクランプ圧設定機構を備えたものが知られている。
しかしながら、上記のような従来の装置では、媒体の種類に応じてクランプ状態を変更する必要が生じるたびに、オペレータが該当するレバーを切り換え操作しなければならなかった。
本発明の請求項2に記載のプリンタ装置は、請求項1において、前記印刷媒体がシート状の場合、前記ローラ部材は、比較的大きな径を有する1つのピンチローラを備えたものであること、を特徴とする。
本発明の請求項3に記載のプリンタ装置は、請求項1において、前記印刷媒体が板状の場合、前記ローラ部材は、比較的小さな径を有し、左右方向に離間して配された複数のピンチローラを備えたものであること、を特徴とする。
本発明の請求項4に記載のローラアッセンブリは、印刷媒体を支持する媒体支持手段に支持された印刷媒体に対して、互いに直交する搬送方向及び走査方向にプリンタヘッドを対向した状態で相対移動させながらインクを吐出させて印刷媒体に印刷を施すプリンタ装置において用いられるローラアッセンブリであって、アッセンブリ本体と、各々回転自在に設けられたピンチローラを有し、前記アッセンブリ本体に対して取付け/取外し可能となされたローラ部材と、から構成され、前記印刷媒体の材質及び/又は厚さに応じて、前記ローラ部材を交換することにより、クランプ状態を変更可能となされていること、を特徴とする。
本発明の請求項5に記載のローラアッセンブリは、請求項4において、前記印刷媒体がシート状の場合、前記ローラ部材は、比較的大きな径を有する1つのピンチローラを備えたものであること、を特徴とする。
本発明の請求項6に記載のローラアッセンブリは、請求項4において、前記印刷媒体が板状の場合、前記ローラ部材は、比較的小さな径を有し、左右方向に離間して配された複数のピンチローラを備えたものであること、を特徴とする。
図1は、本発明のプリンタ装置の一構成例を示す図である。
本発明のプリンタ装置は、印刷媒体を支持する媒体支持手段に支持された印刷媒体に対して、互いに直交する搬送方向及び走査方向にプリンタヘッドを対向した状態で相対移動させながらインクを吐出させて印刷媒体に印刷を施すプリンタ装置である。
なお、本発明のプリンタ装置におけるローラアッセンブリ100の具体的な構成については、後に詳述する。
次に、以上のように構成されるプリンタ装置10において用いられる本発明のローラアッセンブリ100の具体的な構成について説明する。
図5及び図6は、本発明のプリンタ装置10において、ローラアッセンブリ100の一構成例を示す図であり、図5は外観図、図6は左右中央での側断面図である。
クランプベース120は、図5~図7に示すように、アッセンブリケース110の左右の側壁間を結んでに取り付けられた揺動軸114に揺動自在に支持されて前後に延びる平坦なベースプレート部121と、このベースプレート部121から上方に突出して揺動軸114と平行に延びる壁面状のレバー係合部122と、レバー係合部122の上端を左右貫通する支軸孔に軸支されたバネ支軸123とを有して構成される。
特に本発明では、多種多様な材質/厚さを有する印刷媒体に応じて、ここでは印刷媒体がシート状の場合と板状の場合とに応じて、ローラ部材130を使い分けている。これにより印刷媒体に対応して適したクランプをすることができ、正確にフィードさせることが可能である。
前記印刷媒体がシート状の場合、前記ローラ部材130Aは、比較的大きな径を有する1つのピンチローラ131Aを備えたものである。ローラ部材130Aは、ピンチローラ131Aをローラピン132によって回転自在に軸支している。
ローラ部材130Aに設けられた取り付け用の凹部133を、クランプベース120の固定軸126に嵌め込むことで、ガタを発生させることなく、クランプベース120の先端部にローラ部材130Aを取り付けることができる。
なお、ここでは説明をわかりやすくするために、抜き出した状態のクランプベース120に対してローラ部材130を取り付けた場合を示しているが、実際には、クランプベース120はアッセンブリケース110に支持された状態で、このクランプベース120(アッセンブリ本体をなす)に対してローラ部材130を取り付ける。
印刷媒体がシート状の場合、ローラ部材130Aはピンチローラ131Aを1つしか備えていないが、これによりピンチローラ131Aと印刷媒体との摩擦を小さくし、印刷媒体を安定走行させることができる。
また、印刷媒体がシート状の場合、媒体の厚みが薄いため、ピンチローラ131Aの径は、媒体の厚みに合わせて、板状の場合(ピンチローラ131B)と比べて比較的大きなものとなる。
前記印刷媒体が板状の場合、前記ローラ部材130Bは、比較的小さな径を有し、左右方向に離間して配された複数のピンチローラ131Bを備えたものである。ローラ部材130Bは、ピンチローラ131Bをローラピン132によって回転自在に軸支している。
ローラ部材130Bに設けられた取り付け用の凹部133を、クランプベース120の固定軸126に嵌め込むことで、ガタを発生させることなく、クランプベース120の先端部にローラ部材130Bを取り付けることができる。
印刷媒体が板状の場合、ローラ部材130Bが、離間して配された複数のピンチローラ131Bを備えていることで、押さえ幅を広くし、媒体をしっかりと押さえることができる。なお、ここでは2つのピンチローラ131Bを備えた場合を示しているが、本発明はこれに限定されるものではなく、例えば3つ以上のピンチローラを備えていてもよい。
前記印刷媒体が板状の場合、媒体の厚みが厚いため、ピンチローラ131Bの径は、媒体の厚みに合わせて、シート状の場合(ピンチローラ131A)と比べて比較的小さいものとなる。
クランプ係脱機構150は、主としてクランプベース120のレバー係合部122とクランプレバー155とにより構成される。
ON係止面157n(及びOFF係止面157fの左端角部157p)は、クランプレバー155を左方のON側に設定したときにレバー係合部122と係合し得る状態になり、コイルスプリング140の付勢力によりピンチローラ131を送りローラ21の周面(上面)に押し付けたクランプ位置(クランプON)に保持させる。
例えば上述の実施形態では、UVインクを用いて印刷を行う構成を示したが、このUVインク以外に、例えば水性インク、油性インク又はソルベントインク等を使用するプリンタ装置に対しても、本発明を適用することができる。
また、上述した実施形態では、印刷媒体がシート状の場合と板状の場合とで異なるローラ部材を用いた場合を示したが、本発明はこれに限定されるものではなく、シート状媒体間でも、その材質/厚さに応じて異なるローラ部材を用いてもよい。また、板状媒体間でも、その材質/厚さに応じて異なるローラ部材を用いてもよい。
Claims (6)
- 印刷媒体を支持する媒体支持手段に支持された印刷媒体に対して、互いに直交する搬送方向及び走査方向にプリンタヘッドを対向した状態で相対移動させながらインクを吐出させて印刷媒体に印刷を施すプリンタ装置であって、
媒体支持手段の上面と略同一の高さ位置に左右に延びて設けられ回転駆動される送りローラ、及び各々回転自在なピンチローラが前記送りローラの上方に左右に並んで設けられたローラアッセンブリを複数有し、前記媒体支持手段上に載置された印刷媒体を前記送りローラと前記ピンチローラとの間に挟み込んで前後に搬送する搬送機構と、
前記プリンタヘッドを前記走査方向に移動させるヘッド移動機構と、
前記媒体搬送機構による印刷媒体の送り制御、及び前記ヘッド移動機構による前記プリンタヘッドの移動制御を行う印刷制御部と、を備え、
前記ローラアッセンブリは、アッセンブリ本体と、前記ピンチローラを有し、前記アッセンブリ本体に対して取付け/取外し可能となされたローラ部材と、から構成され、
前記印刷媒体の材質及び/又は厚さに応じて、前記ローラ部材を交換することにより、クランプ状態を変更可能となされていること、を特徴とするプリンタ装置。 - 前記印刷媒体がシート状の場合、前記ローラ部材は、比較的大きな径を有する1つのピンチローラを備えたものであること、を特徴とする請求項1に記載のプリンタ装置。
- 前記印刷媒体が板状の場合、前記ローラ部材は、比較的小さな径を有し、左右方向に離間して配された複数のピンチローラを備えたものであること、を特徴とする請求項1に記載のプリンタ装置。
- 印刷媒体を支持する媒体支持手段に支持された印刷媒体に対して、互いに直交する搬送方向及び走査方向にプリンタヘッドを対向した状態で相対移動させながらインクを吐出させて印刷媒体に印刷を施すプリンタ装置において用いられるローラアッセンブリであって、
アッセンブリ本体と、
各々回転自在に設けられたピンチローラを有し、前記アッセンブリ本体に対して取付け/取外し可能となされたローラ部材と、から構成され、
前記印刷媒体の材質及び/又は厚さに応じて、前記ローラ部材を交換することにより、クランプ状態を変更可能となされていること、を特徴とするローラアッセンブリ。 - 前記印刷媒体がシート状の場合、前記ローラ部材は、比較的大きな径を有する1つのピンチローラを備えたものであること、を特徴とする請求項4に記載のローラアッセンブリ。
- 前記印刷媒体が板状の場合、前記ローラ部材は、比較的小さな径を有し、左右方向に離間して配された複数のピンチローラを備えたものであること、を特徴とする請求項4に記載のローラアッセンブリ。
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EP10815143.2A EP2476638B1 (en) | 2009-09-11 | 2010-09-08 | Printer device and roller assembly |
KR1020127006224A KR101275720B1 (ko) | 2009-09-11 | 2010-09-08 | 프린터 장치 및 롤러 어셈블리 |
CN201080040324.8A CN102482041B (zh) | 2009-09-11 | 2010-09-08 | 打印装置以及辊总成 |
US13/395,123 US8870364B2 (en) | 2009-09-11 | 2010-09-08 | Printer apparatus and roller assembly |
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KR101712404B1 (ko) * | 2016-11-16 | 2017-03-06 | 망고슬래브 주식회사 | 재접착식 메모지용 프린터 |
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EP2476638A4 (en) | 2014-10-29 |
JP5572857B2 (ja) | 2014-08-20 |
CN102482041A (zh) | 2012-05-30 |
CN102482041B (zh) | 2014-11-05 |
KR20120048675A (ko) | 2012-05-15 |
US20120169804A1 (en) | 2012-07-05 |
EP2476638B1 (en) | 2016-04-27 |
JP2011057405A (ja) | 2011-03-24 |
EP2476638A1 (en) | 2012-07-18 |
KR101275720B1 (ko) | 2013-06-17 |
US8870364B2 (en) | 2014-10-28 |
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