US20070034727A1 - Roll holder device - Google Patents
Roll holder device Download PDFInfo
- Publication number
- US20070034727A1 US20070034727A1 US11/492,917 US49291706A US2007034727A1 US 20070034727 A1 US20070034727 A1 US 20070034727A1 US 49291706 A US49291706 A US 49291706A US 2007034727 A1 US2007034727 A1 US 2007034727A1
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- United States
- Prior art keywords
- rotary
- holder
- roll
- holders
- holder device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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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
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/22—Constructional details collapsible; with removable parts
- B65H75/2218—Collapsible hubs
- B65H75/2227—Collapsible hubs with a flange fixed to the hub part
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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
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/248—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction
Definitions
- the present invention relates to a roll holder device comprising a pair of holders attached to both ends of a sheet roll, in which a strip of a sheet is wound around a core, and rotating together with the sheet roll.
- a photographic printer and a color thermal printer employ a recording-paper roll in which a strip of a recording paper is wound around a cylindrical core. The recording paper is drawn out of the recording-paper roll and an image is recorded thereon. After that, the recording paper is cut in a prescribed size.
- the recording-paper roll is mounted on a roll holder device so as to be rotatably supported.
- the roll holder device comprises a pair of holders attached to both ends of the recording-paper roll.
- the holder has a fit portion fitting to an inner circumference of the core, and a rod supported by support members disposed in the paper feeder.
- the recording-paper roll is integrally rotated with the pair of the holders.
- a drive gear is formed on one of the holders to rotate the recording-paper roll via this drive gear.
- the holder slips relative to the core if the holder is loosely engaged with the core.
- techniques for preventing the holder from slipping are proposed.
- the technique for preventing the holder from slipping on the paper core it is known to utilize a claw member, which is formed at the fit portion of the holder, and a spring for biasing the claw member in a radial direction toward the outside (see Japanese Patent Laid-Open Publication No. 2003-246508, for instance).
- the top of the claw member is a pointed claw biting into the inner circumference of the core.
- the roll holder device comprises a first holder and a second holder, which are attached to both ends of a sheet roll formed by winding a strip of a sheet around a cylindrical paper core.
- the holders hold the sheet roll and integrally rotate therewith.
- At least one of the first and second holders is provided with a fit portion for fitting to an inner circumference of the core.
- the roll holder device further comprises at least one rotary member disposed at the fit portion, and a rotary-member biasing mechanism by which the rotary member is biased to protrude from the fit portion.
- the rotary member abuts on and rotates along the inner circumference of the core at an attachment time of the roll holder device.
- the rotary-member biasing mechanism presses the rotary member against the inner circumference of the core at the attachment time.
- the rotary-member biasing mechanism includes a rotary-member support shaft for rotatably supporting the rotary member, a retainer for retaining the rotary member via the rotary-member support shaft, a retainer support shaft for rotatably supporting the retainer, and a bias member for biasing the retainer so as to pivot the retainer around the retainer support shaft.
- the rotary-member support shaft is attached to the retainer so as to extend in a direction perpendicular to an attachment direction of the roll holder device.
- the retainer support shaft is attached to the fit portion so as to extend in parallel to the attachment direction.
- the rotary member is a disk and is movable between a first projection position and a second projection position. In the first projection position, the rotary member most protrudes from the fit portion. In the second projection position, the rotary member is pushed back against the rotary-member biasing mechanism in association with the attachment operation to press the inner circumference of the core.
- the rotary member tilts relative to a normal line passing a contact point of the inner circumference of the core. In virtue of this, when the roll holder device rotates, the rotary member is strongly pressed against the inner circumference of the core so that the roll holder device is surely prevented from slipping.
- the rotary member of the first type presses the inner circumference of the core in a condition that the rotary member tilts in an anterior direction of a time when the first and second holders rotate in a forward direction.
- the rotary member of the second type presses the inner circumference of the core in a condition that the rotary member tilts in an anterior direction of a time when the first and second holders rotate in a backward direction.
- rotary members and the rotary-member biasing mechanisms are disposed at predetermined intervals in a circumferential direction of the fit portion. In this case, uniform force is applied to the core when the roll holder device rotates. Thus, the sheet roll is prevented from being biased during rotation.
- the rotary member abuts on and rotates along the inner circumference of the core at the attachment time of the roll holder device so that attachment resistance is reduced. Consequently, the attachment operation is easily performed.
- the rotary member is strongly pressed against the inner circumference of the core after the attachment so that the holder is surely prevented from slipping.
- the roll holder device further comprises a holder interlocking mechanism for connecting the first and second holders by an attractive force.
- the holder interlocking mechanism generates the attractive force when the first and second holders approach each other within a predetermined length.
- attachment resistance is caused by pressing the rotary member against the inner circumference of the core.
- the first and second holders have a rod, which projects to the outside of the interlocked holders.
- the rod is settable to a pair of support members.
- LA represents an interval of the completely interlocked first and second holders
- LB represents an interval of the support members
- LC represents the predetermined length of the first and second holders wherein the attractive force is generated
- the holder interlocking mechanism includes a first engagement member, a projection, a biasing member and a second engagement member.
- the first engagement member is disposed in one of the first and second holders and is formed in a triangle shape.
- the first engagement member further has first and second incline surfaces located at both sides of its central top portion.
- the projection is disposed in the other of the first and second holders so as to extend in a radial direction.
- the first engagement member abuts on the projection at the attachment time.
- the biasing member biases the first engagement member in the radial direction, and in this state, the first and second incline surfaces slide on the projection at the attachment time. When the second incline surface slides on the projection, the attractive force is generated. After the second incline surface has slid on the projection, the first engagement member engages with the second engagement member.
- the present invention it is possible to surely attach the first and second holders to the sheet roll.
- the sheet roll is accurately regulated in a width direction.
- the first and second holders are prevented from being set in an incomplete attachment state.
- a user can perform the setting operation without carefully confirming whether the first and second holders are completely attached or not at the attachment time. In virtue of this, the setting operation is simplified.
- FIG. 1 is a perspective view showing a paper tray and a roll holder device attached to a recording-paper roll;
- FIG. 2 is an exploded perspective view of the recording-paper roll and the roll holder device
- FIG. 3 is a section view of the roll holder device taken in an axial direction
- FIG. 4 is a section view of the roll holder device taken in a radial direction
- FIG. 5 is an explanatory illustration showing an angle, which is formed by a radial direction of a rotary claw and a normal-line direction regarding a contact point of an inner circumference of a core, under the condition that the rotary claw is kept in a press position;
- FIG. 6 is an explanatory illustration showing an attractive force generated by an interlocking mechanism
- FIG. 7 is an explanatory illustration showing an interval of holders in a state that the holders attract each other;
- FIGS. 8A and 8B are explanatory illustrations explaining an attachment operation of the roll holder device
- FIG. 9 is an explanatory illustration showing the rotary claw biting an inner circumference of a core.
- FIGS. 10A and 10B are explanatory illustrations explaining the attachment operation of the roll holder device in a case that the first holder is incompletely attached.
- a recording-paper roll 3 in which a strip of a recording paper 2 is wound in a roll form is used in a state that a roll holder device 4 is attached to both ends thereof.
- a paper tray 5 is fitted into a printer body, which is not shown, so as to be pulled out. The paper tray 5 is pulled out to set the recording-paper roll 3 to which the roll holder device 4 is attached. After that, the paper tray 5 is pushed into the printer body to load the recording-paper roll 3 therein.
- the paper tray 5 is provided with two support plates 10 and 11 having support concaves 10 a and 10 b formed in a U-like shape.
- a rod 12 of the roll holder device 4 is supported by the concaves 10 a and 11 a .
- Two guide rails 13 and 14 are fixed to the paper tray 5 .
- the guide rails 13 and 14 are respectively provided with ridges 13 a and 14 a formed in a longitudinal direction. The ridges 13 a and 14 a are guided when the paper tray 5 is moved.
- the guide rails 13 and 14 are provided with lock pins 15 and 16 , which are locked by a lock mechanism not shown when the paper tray 5 is contained in the printer body.
- the paper tray 5 is provided with a flap 18 being rotatable around a shaft 17 .
- the flap 18 is urged by a spring in a circumferential direction of the shaft 17 , and is rotated by a hand inserted into an under portion of the flap 18 .
- the flap 18 against the spring it is possible to release the lock of the lock mechanism.
- the lock is adapted not to be released during transportation of the recording paper 2 , even if the flap 18 is handled.
- a harmful influence is not exerted on operations for transporting the recording paper and for recording an image.
- the recording-paper roll 3 is formed by winding the strip of the recording paper 2 around a cylindrical paper core 20 .
- the roll holder device 4 comprises a first holder 21 and a second holder 22 .
- the first holder 21 is attached to one end of the recording-paper roll 3 and the second holder 22 is attached to the other end thereof.
- the first holder 21 comprises a flange 30 , a circular protrusion 33 (see FIG. 1 ) disposed at the outside of the flange 30 , and a bearing 34 (see FIG. 1 ) rotatably supported by the rod 12 .
- the first holder 21 is provided with a fit portion 31 disposed at the inside of the flange 30 .
- the interior of the fit portion 31 is provided with two rotary-claw units 28 for forward rotation and two rotary-claw units 29 for backward rotation. These rotary-claw units prevent the first holder 21 from slipping relative to the recording-paper roll 3 .
- the flange 30 is a thin plate substantially having a regular dodecagon shape.
- the flange 30 confronts one end of the recording-paper roll 3 to regulate movement thereof in a width direction.
- the fit portion 31 is formed in a cylindrical shape, and an outer diameter thereof is substantially identical with an inner diameter of the core 20 .
- the fit portion 31 is provided with a step 35 to engage with a step 76 , which is described later, in association with an attachment operation.
- the fit portion 31 is further provided with engagement holes 36 to engage with engagement pieces 77 , which are described later, in association with the attachment operation.
- the engagement holes 36 are formed by four so as to have predetermined intervals in a circumferential direction of the fit portion 31 .
- the fit portion 31 is provided with a projection 31 b projecting toward the inside thereof.
- a gear 37 (see FIG. 1 ) is formed on the periphery of the circular protrusion 33 .
- the gear 37 meshes with an actuator of the printer body, which is not shown, when the paper tray 5 (see FIG. 1 ) is inserted into the printer body.
- the actuator By means of the actuator, the roll holder device 4 is rotated in forward and backward directions.
- the recording paper 2 is drawn out of the recording-paper roll 3 .
- the recording paper 2 is rewound to the recording-paper roll 3 .
- the second holder 22 comprises a flange 70 , a fit portion 71 disposed at the inside of the flange 70 , an interlocking mechanism 72 for connecting the holders, two circular protrusions 73 and 74 disposed at the outside of the flange 70 , and a bearing 75 rotatably supported by the rod 12 .
- the flange 70 is a thin plate substantially having a regular dodecagon shape, similarly to the flange 30 .
- the flange 70 confronts the other end of the recording-paper roll 3 .
- the fit portion 71 is formed in a cylindrical shape, and an outer diameter thereof is identical with that of the fit portion 31 .
- the fit portion 71 is provided with the step 76 .
- the rotary-claw unit 28 for the forward rotation comprises a rotary claw 38 and a biasing mechanism 45 for biasing the rotary claw 38 .
- the rotary-claw unit 28 works when the respective holders 21 and 22 rotate in the forward direction (clockwise direction).
- the biasing mechanism 45 includes a shaft 39 , a retainer 40 , a support shaft 41 , a compression spring 42 and a stopper 44 .
- the two rotary-claw units 28 are disposed at symmetry positions about the rod 12 .
- the rotary-claw units for the forward rotation may be provided by three or more. In this case, it is preferable to dispose the rotary-claw units at constant intervals in a circumferential direction of the fit portion 31 .
- the rotary claw 38 has a disk shape and is provided with an edge portion 38 a formed by cutting a part of an anterior side of a time when the first holder 21 rotates in the forward direction.
- the edge portion 38 a bites into an inner circumference 20 a (see FIG. 2 ) of the core 20 .
- the rotary claw 38 is rotatable around the shaft 39 attached to the retainer 40 , which is rotatable around the support shaft 41 attached to the fit portion 31 .
- the shaft 39 is perpendicular to the support shaft 41 extending in parallel to the rod 12 .
- the compression spring 42 biases the retainer 40 in the clockwise direction around the support shaft 41 .
- a moving range of the retainer 40 in the biasing direction is regulated by the stopper 44 .
- the rotary claw 38 moves between a projection position where a part thereof projects from an opening 43 formed in the fit portion 31 , and a press position where the rotary claw 38 is pressed against the inner circumference 20 a of the core 20 as shown in FIG. 5 .
- the rotary claw 38 is pushed toward the inside of the fit portion 31 in association with the attachment operation of the roll holder device 4 .
- a radial direction of the rotary claw 38 is represented by a line 46 .
- the rotary claw 38 for the forward rotation is adapted to tilt in an advancing direction when the first holder 21 rotates in the forward direction (clockwise direction).
- the line 46 is adapted to be located at an anterior side of the normal line 47 in the advancing direction. In virtue of this, the rotary claw 38 is strongly pressed against the inner circumference 20 a of the core 20 when the first holder 21 is rotated in the forward direction.
- the two rotary-claw units 29 for the backward rotation are disposed at symmetry positions about the rod 12 , and work when the respective holders 21 and 22 are rotated in the backward direction (counterclockwise direction).
- the rotary-claw unit 29 is composed of a rotary claw 48 and a biasing mechanism 55 for biasing the rotary claw 48 .
- a structure of the rotary claw 48 is similar to that of the rotary claw 38 .
- an edge portion 48 a formed on the rotary claw 48 is different in a point that the cut part thereof is located at an anterior side of a time when the first holder 21 is rotated in the backward direction.
- a structure of the biasing mechanism 55 is similar to that of the biasing mechanism 45 .
- the biasing mechanism 55 includes a shaft 49 , a retainer 50 , a support shaft 51 , a compression spring 52 , and a stopper 54 .
- the retainer 50 is different in a point that the compression spring 52 biases the retainer 50 in the counterclockwise direction around the support shaft 51 .
- the rotary claw 48 moves between a projection position where a part thereof projects from an opening 53 formed in the fit portion 31 , and a press position where the rotary claw 48 is pressed against the inner circumference 20 a of the core 20 .
- the rotary claw 48 is pushed toward the inside of the fit portion 31 in association with the attachment operation of the roll holder device 4 .
- the rotary claw 48 When the rotary claw 48 is kept in the press position, the rotary claw 48 tilts relative to a normal line 57 passing a contact point of the inner circumference 20 a of the core 20 .
- An angle formed by the rotary claw 48 and the normal line 57 is represented by ⁇ B.
- a radial direction of the rotary claw 48 is represented by a line 56 .
- the rotary claw 48 is strongly pressed against the inner circumference 20 a of the core 20 when the first holder 21 is rotated in the backward direction.
- attachment resistance occurs during the attachment operation of the first holder 21 .
- This resistance is defined as attachment resistance represented by F 1 .
- the attachment resistance F 1 is adapted to be reduced in comparison with that of a conventional device.
- the interlocking mechanism 72 includes the engagement piece 77 and a compression spring 78 for urging the engagement piece 77 toward the outside in a radial direction.
- the engagement piece 77 is disposed inside a guide hole 79 formed in the fit portion 71 .
- the engagement piece 77 has a mountain-like shape including a first incline surface 77 a and a second incline surface 77 b .
- the second holder 22 is pushed against the first holder 21 until a certain position, and the second incline surface 77 b of the engagement piece 77 abuts on the projection 31 b .
- the engagement piece 77 receives a force from the projection 31 b .
- the holders attract each other. This force is defined as attractive force represented by F 2 .
- F 1 Compared with the attachment resistance F 1 , a relation of F 1 ⁇ F 2 is maintained.
- a holder interval is represented by LA (see FIG. 3 ).
- the holder interval is a distance extending from an end of the circular protrusion 33 of the first holder 21 to an end of the circular protrusions 73 and 74 of the second holder 22 .
- a distance between the support plates 10 and 11 of the paper tray 5 is represented by LB (see FIG. 1 ).
- the holder interval is represented by LC.
- the interval LC is equal to LA plus LD, wherein LD represents a length of the incline surface 77 b orthogonally projected toward the rod 12 .
- the device of this embodiment is adapted to satisfy a relation of LA ⁇ LB ⁇ LC.
- the paper tray 5 is drawn out of the printer body and the used recording-paper roll is removed. Thus, it becomes possible to place the unused recording-paper roll 3 .
- the first holder 21 and the second holder 22 may be attached in this order or in a reverse order thereof. In this embodiment, the former order is adopted.
- the first holder 21 is squeezed in the condition that the fit portion 31 of the first holder 21 fits to the inner circumference of the core 20 of the recording-paper roll 3 .
- an outer circumference 31 a of the fit portion 31 slides on the inner circumference 20 a of the core 20 .
- the rotary claws 38 and 48 of the rotary-claw units 28 and 29 abut on the inner circumference 20 a and are pressed against this circumference 20 a by the biasing force of the respective compression springs 42 and 52 .
- the rotary claws 38 and 48 are moved from the projection position to the press position.
- the rotary claws 38 and 48 move along the inner circumference 20 a while rotating around the shafts 39 and 49 .
- the attachment of the first holder 21 is completed.
- the edge portions 38 a and 48 a of the rotary claws 38 and 48 slightly enter the inner circumference 20 a.
- the rotary claws 38 and 48 abut on the inner circumference 20 a of the core 20 and rotate at the attachment time so that the attachment resistance F 1 is reduced. Thus, the attachment is easily performed. In addition, the rotary claws 38 and 48 strongly press the inner circumference 20 a of the core 20 after the attachment.
- the second holder 22 is squeezed in the condition that the fit portion 71 of the second holder 22 fits to the inner circumference 20 a of the core 20 .
- An outer circumference 71 a of the fit portion 71 slides on the inner circumference 20 a of the core 20 , and then, the incline surface 77 a of the engagement piece 77 abuts on the projection 31 b .
- the top of the engagement piece 77 gets over the projection 31 b and the incline surface 77 b abuts on the projection 31 b .
- the attractive force F 2 is automatically caused between the first and second holders 21 and 22 .
- the attractive force F 2 applied to the second holder 22 is shown in FIG. 8B . Since the holders attract each other, the engagement piece 77 enters the engagement hole 36 and engages therewith to interlock the holders. The interval of the holders becomes LA. In this way, the attachment of the roll holder device 4 is completed.
- the first holder 21 is surely attached to the recording-paper roll 3 before attaching the second holder 22 .
- the roll holder device 4 of the present invention can be surely attached. Referring to FIG. 10 , is described an attachment operation performed in the case that the first holder 21 is incompletely attached.
- the first holder 21 is not squeezed until the position where the inner surface of the flange 30 abuts on the end of the recording-paper roll 3 .
- the second holder 22 is squeezed and the inner surface of the flange 70 abuts on the other end of the recording-paper roll 3 such as shown in FIG. 10B .
- the top of the engagement piece 77 gets over the projection 31 b , and then, the incline surface 77 b abuts on the projection 31 b .
- the attractive force F 2 is automatically caused between the first and second holders 21 and 22 .
- the holders attracts each other without regard to the attachment resistance F 1 .
- FIG. 10B the attractive force F 2 and the attachment resistance F 1 applied to the second holder 22 and the recording-paper roll 3 are shown.
- the holders are completely interlocked and the interval thereof becomes LA. In this way, the attachment of the roll holder device 4 is completed in the case that the first holder 21 is incompletely attached before attaching the second holder 22 .
- the recoding-paper roll 3 to which the roll holder device 4 is attached is set to the paper tray 5 in a state that both ends of the rod 12 are supported by the support plates 10 and 11 .
- the holders automatically attract each other and the holder interval becomes LA.
- the first and second holders 21 and 22 are surely attached.
- the user can perform the setting operation without carefully confirming whether the first and second holders 21 and 22 are completely attached or not at the attachment time. In virtue of this, the setting operation is simplified.
- the paper tray 5 is pushed into the printer body to lard the recording-paper roll 3 in the printer body.
- the gear 37 meshes with the actuator disposed in the printer body. By means of the actuator, the gear 37 is driven so that the first and second holders 21 and 22 are rotated in the forward and backward directions.
- the first and second holders 21 and 22 are rotated in the forward direction (clockwise direction in FIG. 9 ).
- the edge portion 38 a of the rotary claw 38 deeply bites into the inner circumference 20 a of the core 20 so that the recording-paper roll 3 surely rotates together with the roll holder device 4 without slipping.
- the recording paper 2 is advanced.
- an image is recorded. The recorded area is cut and discharged from the printer body.
- an instruction for rewinding the recording paper 2 is outputted to rotate the first and second holders 21 and 22 in the backward direction (counterclockwise direction in FIG. 9 ).
- the edge portion 48 a of the rotary claw 48 deeply bites into the inner circumference 20 a of the core 20 so that the recording-paper roll 3 surely rotates together with the roll holder device 4 without slipping.
- the recording paper 2 is rewound.
- the paper tray 5 is drawn out and the roll holder device 4 is detached from the used recording-paper roll.
- the engagement piece 77 exits from the engagement hole 36 .
- a force is applied to separate the first holder 21 from the core 20 .
- the rotary claws 38 and 48 rotate along the inner circumference 20 a of the core 20 and the first holder 21 is detached.
- the roll holder device 4 is attached to the unused recording-paper roll. The above-described operations are repeated.
- the recording paper is used as a sheet.
- the sheet may be a paper to be used for another purpose excepting the image recording.
- the sheet may be made of a material excepting the paper.
- the rotary claws for the forward and backward rotations are provided.
- either of the rotary claws for the forward and backward rotations may be merely provided.
- the rotary claws of the same sort are provided by two.
- the sole rotary claw may be provided, and the rotary claws may be provided by three or more.
- the holders are interlocked in association with the attachment.
- the respective holders may be provided with the rotary claws without interlocking the holders.
Abstract
Description
- The present invention relates to a roll holder device comprising a pair of holders attached to both ends of a sheet roll, in which a strip of a sheet is wound around a core, and rotating together with the sheet roll.
- A photographic printer and a color thermal printer employ a recording-paper roll in which a strip of a recording paper is wound around a cylindrical core. The recording paper is drawn out of the recording-paper roll and an image is recorded thereon. After that, the recording paper is cut in a prescribed size.
- At a time when the recording-paper roll is set to a paper feeder of the printer, the recording-paper roll is mounted on a roll holder device so as to be rotatably supported. The roll holder device comprises a pair of holders attached to both ends of the recording-paper roll. The holder has a fit portion fitting to an inner circumference of the core, and a rod supported by support members disposed in the paper feeder.
- The recording-paper roll is integrally rotated with the pair of the holders. In a known manner for rotating the recording-paper roll, a drive gear is formed on one of the holders to rotate the recording-paper roll via this drive gear. In this manner, however, the holder slips relative to the core if the holder is loosely engaged with the core. In consideration of this, techniques for preventing the holder from slipping are proposed.
- As to the technique for preventing the holder from slipping, it is known that a key is formed on the holder and a key groove engaging with the key is formed on the core. In this technique, however, it is required to form the key and the key groove with great accuracy. Although this technique is advantageous in a case using a plastic core, it is difficult to adopt this technique in a case using a paper core, since the manufacturing cost remarkably increases.
- As to the technique for preventing the holder from slipping on the paper core, it is known to utilize a claw member, which is formed at the fit portion of the holder, and a spring for biasing the claw member in a radial direction toward the outside (see Japanese Patent Laid-Open Publication No. 2003-246508, for instance). The top of the claw member is a pointed claw biting into the inner circumference of the core.
- In the technique utilizing the claw member and the spring, when the biasing force of the spring is strong, the claw member strongly bites so that slipping is surely prevented. However, there arises a problem in that friction increases at a time when the holder is attached to the core. Consequently, operability of the holder deteriorates. In particular, when a user hurriedly performs the attachment operation of the holder, sometimes the holder is incompletely attached to the recording-paper roll. If the holder incompletely attached to the recording-paper roll is set to the paper feeder, a width of the recording paper is not sufficiently regulated. Thus, there arise problems in that the recording paper skews at the rotational drive time and printing is not performed within a proper area. Meanwhile, when the biasing force of the spring is weak, the friction of the attachment time is small so that the holder is easily attached to the core. However, there arises a problem in that the holder slips, since the claw member does not strongly bite. Further, when the user attaches the holder to the core, a hand of the user is likely to be damaged by contacting with the claw member.
- In view of the foregoing, it is a primary object of the present invention to provide a roll holder device in which a holder is surely prevented from slipping relative to a sheet roll after attachment of the holder.
- It is a second object of the present invention to provide a roll holder device having excellent operability and high safeness.
- It is a third object of the present invention to provide a roll holder device in which a holder is adapted to be surely attached to a sheet roll.
- In order to achieve the above and other objects, the roll holder device according to the present invention comprises a first holder and a second holder, which are attached to both ends of a sheet roll formed by winding a strip of a sheet around a cylindrical paper core. The holders hold the sheet roll and integrally rotate therewith. At least one of the first and second holders is provided with a fit portion for fitting to an inner circumference of the core. The roll holder device further comprises at least one rotary member disposed at the fit portion, and a rotary-member biasing mechanism by which the rotary member is biased to protrude from the fit portion. The rotary member abuts on and rotates along the inner circumference of the core at an attachment time of the roll holder device. The rotary-member biasing mechanism presses the rotary member against the inner circumference of the core at the attachment time.
- In a preferred embodiment, the rotary-member biasing mechanism includes a rotary-member support shaft for rotatably supporting the rotary member, a retainer for retaining the rotary member via the rotary-member support shaft, a retainer support shaft for rotatably supporting the retainer, and a bias member for biasing the retainer so as to pivot the retainer around the retainer support shaft. The rotary-member support shaft is attached to the retainer so as to extend in a direction perpendicular to an attachment direction of the roll holder device. The retainer support shaft is attached to the fit portion so as to extend in parallel to the attachment direction.
- It is preferable that the rotary member is a disk and is movable between a first projection position and a second projection position. In the first projection position, the rotary member most protrudes from the fit portion. In the second projection position, the rotary member is pushed back against the rotary-member biasing mechanism in association with the attachment operation to press the inner circumference of the core. When the rotary member is kept in the second projection position, it is preferable that the rotary member tilts relative to a normal line passing a contact point of the inner circumference of the core. In virtue of this, when the roll holder device rotates, the rotary member is strongly pressed against the inner circumference of the core so that the roll holder device is surely prevented from slipping.
- It is preferable to provide first and second types of the rotary members. The rotary member of the first type presses the inner circumference of the core in a condition that the rotary member tilts in an anterior direction of a time when the first and second holders rotate in a forward direction. The rotary member of the second type presses the inner circumference of the core in a condition that the rotary member tilts in an anterior direction of a time when the first and second holders rotate in a backward direction.
- It is preferable to dispose the rotary members and the rotary-member biasing mechanisms at predetermined intervals in a circumferential direction of the fit portion. In this case, uniform force is applied to the core when the roll holder device rotates. Thus, the sheet roll is prevented from being biased during rotation.
- According to the present invention, the rotary member abuts on and rotates along the inner circumference of the core at the attachment time of the roll holder device so that attachment resistance is reduced. Consequently, the attachment operation is easily performed. In addition, the rotary member is strongly pressed against the inner circumference of the core after the attachment so that the holder is surely prevented from slipping.
- The roll holder device further comprises a holder interlocking mechanism for connecting the first and second holders by an attractive force. The holder interlocking mechanism generates the attractive force when the first and second holders approach each other within a predetermined length. At the attachment time of the holder, attachment resistance is caused by pressing the rotary member against the inner circumference of the core. When F1 represents the attachment resistance and F2 represents the attractive force generated by the holder interlocking mechanism, a condition of F1<F2 is satisfied.
- The first and second holders have a rod, which projects to the outside of the interlocked holders. The rod is settable to a pair of support members. When LA represents an interval of the completely interlocked first and second holders, LB represents an interval of the support members, and LC represents the predetermined length of the first and second holders wherein the attractive force is generated, a condition of LA<LB<LC is satisfied.
- The holder interlocking mechanism includes a first engagement member, a projection, a biasing member and a second engagement member. The first engagement member is disposed in one of the first and second holders and is formed in a triangle shape. The first engagement member further has first and second incline surfaces located at both sides of its central top portion. The projection is disposed in the other of the first and second holders so as to extend in a radial direction. The first engagement member abuts on the projection at the attachment time. The biasing member biases the first engagement member in the radial direction, and in this state, the first and second incline surfaces slide on the projection at the attachment time. When the second incline surface slides on the projection, the attractive force is generated. After the second incline surface has slid on the projection, the first engagement member engages with the second engagement member.
- According to the present invention, it is possible to surely attach the first and second holders to the sheet roll. Thus, the sheet roll is accurately regulated in a width direction. The first and second holders are prevented from being set in an incomplete attachment state. A user can perform the setting operation without carefully confirming whether the first and second holders are completely attached or not at the attachment time. In virtue of this, the setting operation is simplified.
-
FIG. 1 is a perspective view showing a paper tray and a roll holder device attached to a recording-paper roll; -
FIG. 2 is an exploded perspective view of the recording-paper roll and the roll holder device; -
FIG. 3 is a section view of the roll holder device taken in an axial direction; -
FIG. 4 is a section view of the roll holder device taken in a radial direction; -
FIG. 5 is an explanatory illustration showing an angle, which is formed by a radial direction of a rotary claw and a normal-line direction regarding a contact point of an inner circumference of a core, under the condition that the rotary claw is kept in a press position; -
FIG. 6 is an explanatory illustration showing an attractive force generated by an interlocking mechanism; -
FIG. 7 is an explanatory illustration showing an interval of holders in a state that the holders attract each other; -
FIGS. 8A and 8B are explanatory illustrations explaining an attachment operation of the roll holder device; -
FIG. 9 is an explanatory illustration showing the rotary claw biting an inner circumference of a core; and -
FIGS. 10A and 10B are explanatory illustrations explaining the attachment operation of the roll holder device in a case that the first holder is incompletely attached. - As shown in
FIG. 1 , a recording-paper roll 3 in which a strip of arecording paper 2 is wound in a roll form is used in a state that aroll holder device 4 is attached to both ends thereof. Apaper tray 5 is fitted into a printer body, which is not shown, so as to be pulled out. Thepaper tray 5 is pulled out to set the recording-paper roll 3 to which theroll holder device 4 is attached. After that, thepaper tray 5 is pushed into the printer body to load the recording-paper roll 3 therein. - The
paper tray 5 is provided with twosupport plates support concaves 10 a and 10 b formed in a U-like shape. Arod 12 of theroll holder device 4 is supported by theconcaves guide rails paper tray 5. The guide rails 13 and 14 are respectively provided withridges ridges paper tray 5 is moved. - The guide rails 13 and 14 are provided with lock pins 15 and 16, which are locked by a lock mechanism not shown when the
paper tray 5 is contained in the printer body. Thepaper tray 5 is provided with aflap 18 being rotatable around ashaft 17. Theflap 18 is urged by a spring in a circumferential direction of theshaft 17, and is rotated by a hand inserted into an under portion of theflap 18. By swinging theflap 18 against the spring, it is possible to release the lock of the lock mechanism. Incidentally, the lock is adapted not to be released during transportation of therecording paper 2, even if theflap 18 is handled. Thus, it is prevented that thepaper tray 5 is mistakenly pulled out during the transportation of therecording paper 2. Thus, a harmful influence is not exerted on operations for transporting the recording paper and for recording an image. - As shown in
FIG. 2 , the recording-paper roll 3 is formed by winding the strip of therecording paper 2 around acylindrical paper core 20. Theroll holder device 4 comprises afirst holder 21 and asecond holder 22. Thefirst holder 21 is attached to one end of the recording-paper roll 3 and thesecond holder 22 is attached to the other end thereof. - As shown in
FIGS. 2 and 3 , thefirst holder 21 comprises aflange 30, a circular protrusion 33 (seeFIG. 1 ) disposed at the outside of theflange 30, and a bearing 34 (seeFIG. 1 ) rotatably supported by therod 12. Thefirst holder 21 is provided with afit portion 31 disposed at the inside of theflange 30. The interior of thefit portion 31 is provided with two rotary-claw units 28 for forward rotation and two rotary-claw units 29 for backward rotation. These rotary-claw units prevent thefirst holder 21 from slipping relative to the recording-paper roll 3. - The
flange 30 is a thin plate substantially having a regular dodecagon shape. Theflange 30 confronts one end of the recording-paper roll 3 to regulate movement thereof in a width direction. Thefit portion 31 is formed in a cylindrical shape, and an outer diameter thereof is substantially identical with an inner diameter of thecore 20. Thefit portion 31 is provided with astep 35 to engage with astep 76, which is described later, in association with an attachment operation. Thefit portion 31 is further provided withengagement holes 36 to engage withengagement pieces 77, which are described later, in association with the attachment operation. The engagement holes 36 are formed by four so as to have predetermined intervals in a circumferential direction of thefit portion 31. Furthermore, thefit portion 31 is provided with aprojection 31 b projecting toward the inside thereof. - A gear 37 (see
FIG. 1 ) is formed on the periphery of thecircular protrusion 33. Thegear 37 meshes with an actuator of the printer body, which is not shown, when the paper tray 5 (seeFIG. 1 ) is inserted into the printer body. By means of the actuator, theroll holder device 4 is rotated in forward and backward directions. When theroll holder device 4 is rotated in the forward direction, therecording paper 2 is drawn out of the recording-paper roll 3. When theroll holder device 4 is rotated in the backward direction, therecording paper 2 is rewound to the recording-paper roll 3. - The
second holder 22 comprises aflange 70, afit portion 71 disposed at the inside of theflange 70, an interlockingmechanism 72 for connecting the holders, twocircular protrusions flange 70, and abearing 75 rotatably supported by therod 12. - The
flange 70 is a thin plate substantially having a regular dodecagon shape, similarly to theflange 30. Theflange 70 confronts the other end of the recording-paper roll 3. Thefit portion 71 is formed in a cylindrical shape, and an outer diameter thereof is identical with that of thefit portion 31. Thefit portion 71 is provided with thestep 76. - As shown in
FIG. 4 , the rotary-claw unit 28 for the forward rotation comprises arotary claw 38 and abiasing mechanism 45 for biasing therotary claw 38. The rotary-claw unit 28 works when therespective holders biasing mechanism 45 includes ashaft 39, aretainer 40, asupport shaft 41, acompression spring 42 and astopper 44. The two rotary-claw units 28 are disposed at symmetry positions about therod 12. Incidentally, the rotary-claw units for the forward rotation may be provided by three or more. In this case, it is preferable to dispose the rotary-claw units at constant intervals in a circumferential direction of thefit portion 31. - The
rotary claw 38 has a disk shape and is provided with anedge portion 38 a formed by cutting a part of an anterior side of a time when thefirst holder 21 rotates in the forward direction. Theedge portion 38 a bites into aninner circumference 20 a (seeFIG. 2 ) of thecore 20. Therotary claw 38 is rotatable around theshaft 39 attached to theretainer 40, which is rotatable around thesupport shaft 41 attached to thefit portion 31. Theshaft 39 is perpendicular to thesupport shaft 41 extending in parallel to therod 12. - The
compression spring 42 biases theretainer 40 in the clockwise direction around thesupport shaft 41. A moving range of theretainer 40 in the biasing direction is regulated by thestopper 44. Therotary claw 38 moves between a projection position where a part thereof projects from anopening 43 formed in thefit portion 31, and a press position where therotary claw 38 is pressed against theinner circumference 20 a of the core 20 as shown inFIG. 5 . Therotary claw 38 is pushed toward the inside of thefit portion 31 in association with the attachment operation of theroll holder device 4. - When the
rotary claw 38 is kept in the press position, therotary claw 38 tilts relative to anormal line 47 passing a contact point of theinner circumference 20 a of thecore 20. An angle formed by therotary claw 38 and thenormal line 47 is represented by θA. InFIG. 5 , a radial direction of therotary claw 38 is represented by aline 46. In particular, therotary claw 38 for the forward rotation is adapted to tilt in an advancing direction when thefirst holder 21 rotates in the forward direction (clockwise direction). In other words, theline 46 is adapted to be located at an anterior side of thenormal line 47 in the advancing direction. In virtue of this, therotary claw 38 is strongly pressed against theinner circumference 20 a of the core 20 when thefirst holder 21 is rotated in the forward direction. - The two rotary-
claw units 29 for the backward rotation are disposed at symmetry positions about therod 12, and work when therespective holders claw unit 29 is composed of arotary claw 48 and abiasing mechanism 55 for biasing therotary claw 48. - A structure of the
rotary claw 48 is similar to that of therotary claw 38. In this regard, anedge portion 48 a formed on therotary claw 48 is different in a point that the cut part thereof is located at an anterior side of a time when thefirst holder 21 is rotated in the backward direction. - A structure of the
biasing mechanism 55 is similar to that of thebiasing mechanism 45. Thebiasing mechanism 55 includes ashaft 49, aretainer 50, asupport shaft 51, acompression spring 52, and astopper 54. In this regard, theretainer 50 is different in a point that thecompression spring 52 biases theretainer 50 in the counterclockwise direction around thesupport shaft 51. Therotary claw 48 moves between a projection position where a part thereof projects from anopening 53 formed in thefit portion 31, and a press position where therotary claw 48 is pressed against theinner circumference 20 a of thecore 20. Therotary claw 48 is pushed toward the inside of thefit portion 31 in association with the attachment operation of theroll holder device 4. - When the
rotary claw 48 is kept in the press position, therotary claw 48 tilts relative to anormal line 57 passing a contact point of theinner circumference 20 a of thecore 20. An angle formed by therotary claw 48 and thenormal line 57 is represented by θB. InFIG. 5 , a radial direction of therotary claw 48 is represented by aline 56. Therotary claw 48 is strongly pressed against theinner circumference 20 a of the core 20 when thefirst holder 21 is rotated in the backward direction. - Although the attachment operation for inserting the
first holder 21 into the recording-paper roll 3 is described later, resistance occurs during the attachment operation of thefirst holder 21. This resistance is defined as attachment resistance represented by F1. The attachment resistance F1 is adapted to be reduced in comparison with that of a conventional device. - As shown in
FIG. 6 , the interlockingmechanism 72 includes theengagement piece 77 and acompression spring 78 for urging theengagement piece 77 toward the outside in a radial direction. Theengagement piece 77 is disposed inside aguide hole 79 formed in thefit portion 71. Theengagement piece 77 has a mountain-like shape including afirst incline surface 77 a and asecond incline surface 77 b. Thesecond holder 22 is pushed against thefirst holder 21 until a certain position, and thesecond incline surface 77 b of theengagement piece 77 abuts on theprojection 31 b. At this time, theengagement piece 77 receives a force from theprojection 31 b. By virtue of an axial component of the force received by theengagement piece 77, the holders attract each other. This force is defined as attractive force represented by F2. Compared with the attachment resistance F1, a relation of F1<F2 is maintained. - In a condition that the holders are completely joined, a holder interval is represented by LA (see
FIG. 3 ). The holder interval is a distance extending from an end of thecircular protrusion 33 of thefirst holder 21 to an end of thecircular protrusions second holder 22. Moreover, a distance between thesupport plates paper tray 5 is represented by LB (seeFIG. 1 ). As shown inFIG. 7 , when thesecond holder 22 is pushed and the holders attract each other, the holder interval is represented by LC. In this regard, the interval LC is equal to LA plus LD, wherein LD represents a length of theincline surface 77 b orthogonally projected toward therod 12. The device of this embodiment is adapted to satisfy a relation of LA<LB<LC. - An operation of the above structure is described below. The
paper tray 5 is drawn out of the printer body and the used recording-paper roll is removed. Thus, it becomes possible to place the unused recording-paper roll 3. - In attaching the
roll holder device 4 to the recording-paper roll 3, thefirst holder 21 and thesecond holder 22 may be attached in this order or in a reverse order thereof. In this embodiment, the former order is adopted. - First of all, as shown in
FIG. 8A , thefirst holder 21 is squeezed in the condition that thefit portion 31 of thefirst holder 21 fits to the inner circumference of thecore 20 of the recording-paper roll 3. When thefirst holder 21 is squeezed, anouter circumference 31 a of thefit portion 31 slides on theinner circumference 20 a of thecore 20. In the meantime, such as shown inFIG. 9 , therotary claws claw units inner circumference 20 a and are pressed against thiscircumference 20 a by the biasing force of the respective compression springs 42 and 52. Therotary claws - As the
first holder 21 is further squeezed, therotary claws inner circumference 20 a while rotating around theshafts first holder 21 until a place where the inside surface of theflange 30 abuts on the end of the recording-paper roll, the attachment of thefirst holder 21 is completed. Theedge portions rotary claws inner circumference 20 a. - As described above, the
rotary claws inner circumference 20 a of thecore 20 and rotate at the attachment time so that the attachment resistance F1 is reduced. Thus, the attachment is easily performed. In addition, therotary claws inner circumference 20 a of the core 20 after the attachment. - Successively, as shown in
FIG. 8B , thesecond holder 22 is squeezed in the condition that thefit portion 71 of thesecond holder 22 fits to theinner circumference 20 a of thecore 20. Anouter circumference 71 a of thefit portion 71 slides on theinner circumference 20 a of the core 20, and then, theincline surface 77 a of theengagement piece 77 abuts on theprojection 31 b. As thesecond holder 22 is further squeezed, the top of theengagement piece 77 gets over theprojection 31 b and theincline surface 77 b abuts on theprojection 31 b. The attractive force F2 is automatically caused between the first andsecond holders second holder 22 is shown inFIG. 8B . Since the holders attract each other, theengagement piece 77 enters theengagement hole 36 and engages therewith to interlock the holders. The interval of the holders becomes LA. In this way, the attachment of theroll holder device 4 is completed. - In the above, the
first holder 21 is surely attached to the recording-paper roll 3 before attaching thesecond holder 22. However, when the user hurriedly performs the operation, sometimes thefirst holder 21 is incompletely attached. Even in such a case, theroll holder device 4 of the present invention can be surely attached. Referring toFIG. 10 , is described an attachment operation performed in the case that thefirst holder 21 is incompletely attached. - As shown in
FIG. 10A , thefirst holder 21 is not squeezed until the position where the inner surface of theflange 30 abuts on the end of the recording-paper roll 3. In this condition, thesecond holder 22 is squeezed and the inner surface of theflange 70 abuts on the other end of the recording-paper roll 3 such as shown inFIG. 10B . As thesecond holder 22 is further squeezed, the top of theengagement piece 77 gets over theprojection 31 b, and then, theincline surface 77 b abuts on theprojection 31 b. The attractive force F2 is automatically caused between the first andsecond holders FIG. 10B , the attractive force F2 and the attachment resistance F1 applied to thesecond holder 22 and the recording-paper roll 3 are shown. The holders are completely interlocked and the interval thereof becomes LA. In this way, the attachment of theroll holder device 4 is completed in the case that thefirst holder 21 is incompletely attached before attaching thesecond holder 22. - The recoding-
paper roll 3 to which theroll holder device 4 is attached is set to thepaper tray 5 in a state that both ends of therod 12 are supported by thesupport plates second holders support plates second holders second holders second holders - After setting the recording-
paper roll 3, thepaper tray 5 is pushed into the printer body to lard the recording-paper roll 3 in the printer body. Upon pushing thepaper tray 5 into the printer body, thegear 37 meshes with the actuator disposed in the printer body. By means of the actuator, thegear 37 is driven so that the first andsecond holders - In response to an instruction for advancing the
recording paper 2, the first andsecond holders FIG. 9 ). At this time, theedge portion 38 a of therotary claw 38 deeply bites into theinner circumference 20 a of the core 20 so that the recording-paper roll 3 surely rotates together with theroll holder device 4 without slipping. As the recording-paper roll 3 rotates, therecording paper 2 is advanced. On theadvanced recording paper 2, an image is recorded. The recorded area is cut and discharged from the printer body. - After the image recording operation, an instruction for rewinding the
recording paper 2 is outputted to rotate the first andsecond holders FIG. 9 ). At this time, theedge portion 48 a of therotary claw 48 deeply bites into theinner circumference 20 a of the core 20 so that the recording-paper roll 3 surely rotates together with theroll holder device 4 without slipping. As the recording-paper roll 3 rotates in the backward direction, therecording paper 2 is rewound. - When the
recording paper 2 of theroll 3 is wholly used, thepaper tray 5 is drawn out and theroll holder device 4 is detached from the used recording-paper roll. In applying a force to separate thesecond holder 22 from the core 20 a and thefirst holder 21, theengagement piece 77 exits from theengagement hole 36. Then, it becomes possible to detach thesecond holder 22. After detaching thesecond holder 22, a force is applied to separate thefirst holder 21 from thecore 20. Upon this, therotary claws inner circumference 20 a of thecore 20 and thefirst holder 21 is detached. After that, theroll holder device 4 is attached to the unused recording-paper roll. The above-described operations are repeated. - In the above embodiment, the recording paper is used as a sheet. However, the sheet may be a paper to be used for another purpose excepting the image recording. Moreover, the sheet may be made of a material excepting the paper.
- In the above embodiment, the rotary claws for the forward and backward rotations are provided. However, either of the rotary claws for the forward and backward rotations may be merely provided. In the above embodiment, the rotary claws of the same sort are provided by two. However, the sole rotary claw may be provided, and the rotary claws may be provided by three or more.
- In the above embodiment, the holders are interlocked in association with the attachment. However, the respective holders may be provided with the rotary claws without interlocking the holders.
- Although the present invention has been fully described by way of the preferred embodiments thereof with reference to the accompanying drawings, various changes and modifications will be apparent to those having skill in this field. Therefore, unless otherwise these changes and modifications depart from the scope of the present invention, they should be construed as included therein.
Claims (20)
LA<LB<LC
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-217359 | 2005-07-27 | ||
JP2005217360A JP2007031076A (en) | 2005-07-27 | 2005-07-27 | Roll holder device |
JP2005-217360 | 2005-07-27 | ||
JP2005217359A JP2007031075A (en) | 2005-07-27 | 2005-07-27 | Roll holder device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070034727A1 true US20070034727A1 (en) | 2007-02-15 |
Family
ID=37741719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/492,917 Abandoned US20070034727A1 (en) | 2005-07-27 | 2006-07-26 | Roll holder device |
Country Status (1)
Country | Link |
---|---|
US (1) | US20070034727A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080279603A1 (en) * | 2007-05-08 | 2008-11-13 | Ching-Wen Chen | Rewinding reel for carbon ribbon/label carrier of label printer |
US20090226235A1 (en) * | 2008-03-10 | 2009-09-10 | Seiko Epson Corporation | Roll recording material transport device and recording apparatus |
US20120205485A1 (en) * | 2011-02-10 | 2012-08-16 | Canon Kabushiki Kaisha | Roll sheet supporting apparatus |
WO2013020729A1 (en) * | 2011-08-09 | 2013-02-14 | Koenig & Bauer Aktiengesellschaft | Roll unwinding device for a web printing press |
CN104016195A (en) * | 2014-06-05 | 2014-09-03 | 全椒海丰印刷包装有限公司 | Novel film paper tube |
CN111606139A (en) * | 2020-04-16 | 2020-09-01 | 江苏亚盛金属制品有限公司 | Pop-up winding device |
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US3544016A (en) * | 1968-03-08 | 1970-12-01 | Owens Corning Fiberglass Corp | Winding mandrel for packaging glass strands |
US3801033A (en) * | 1971-12-17 | 1974-04-02 | Rca Corp | Apparatus for easily engaging, disengaging and locking load to rotatable driving element |
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US20030160833A1 (en) * | 2002-02-22 | 2003-08-28 | Fuji Photo Film Co., Ltd. | Holder device of recording paper roll |
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2006
- 2006-07-26 US US11/492,917 patent/US20070034727A1/en not_active Abandoned
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US3544016A (en) * | 1968-03-08 | 1970-12-01 | Owens Corning Fiberglass Corp | Winding mandrel for packaging glass strands |
US3801033A (en) * | 1971-12-17 | 1974-04-02 | Rca Corp | Apparatus for easily engaging, disengaging and locking load to rotatable driving element |
US4143829A (en) * | 1978-02-27 | 1979-03-13 | Martin Automatic, Inc. | Core chuck |
US20030160833A1 (en) * | 2002-02-22 | 2003-08-28 | Fuji Photo Film Co., Ltd. | Holder device of recording paper roll |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080279603A1 (en) * | 2007-05-08 | 2008-11-13 | Ching-Wen Chen | Rewinding reel for carbon ribbon/label carrier of label printer |
US8029201B2 (en) * | 2007-05-08 | 2011-10-04 | Tsc Auto Id Technology Co., Ltd. | Rewinding reel for carbon ribbon/label carrier of label printer |
US20090226235A1 (en) * | 2008-03-10 | 2009-09-10 | Seiko Epson Corporation | Roll recording material transport device and recording apparatus |
US8167228B2 (en) * | 2008-03-10 | 2012-05-01 | Seiko Epson Corporation | Roll recording material transport device and recording apparatus |
US8353475B2 (en) | 2008-03-10 | 2013-01-15 | Seiko Epson Corporation | Roll recording material transport device and recording apparatus |
US20120205485A1 (en) * | 2011-02-10 | 2012-08-16 | Canon Kabushiki Kaisha | Roll sheet supporting apparatus |
US9010674B2 (en) * | 2011-02-10 | 2015-04-21 | Canon Kabushiki Kaisha | Roll sheet supporting apparatus |
WO2013020729A1 (en) * | 2011-08-09 | 2013-02-14 | Koenig & Bauer Aktiengesellschaft | Roll unwinding device for a web printing press |
CN103827003A (en) * | 2011-08-09 | 2014-05-28 | 柯尼格及包尔公开股份有限公司 | Roll unwinding device for web printing press |
US8905346B2 (en) | 2011-08-09 | 2014-12-09 | Koenig & Bauer Aktiengesellschaft | Roll unwinding device for a web printing press |
CN104016195A (en) * | 2014-06-05 | 2014-09-03 | 全椒海丰印刷包装有限公司 | Novel film paper tube |
CN111606139A (en) * | 2020-04-16 | 2020-09-01 | 江苏亚盛金属制品有限公司 | Pop-up winding device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FUJI PHOTO FILM CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KAYA, AKIMASA;REEL/FRAME:018135/0200 Effective date: 20060718 |
|
AS | Assignment |
Owner name: FUJIFILM CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.);REEL/FRAME:018904/0001 Effective date: 20070130 Owner name: FUJIFILM CORPORATION,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.);REEL/FRAME:018904/0001 Effective date: 20070130 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |