JP2011046508A - Tractor and business machine having tractor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tractor and a business machine having this tractor capable of restraining tractor paper from slipping out of a pin belt by simpler operation. <P>SOLUTION: A pin 14b is inserted into a sending hole 6b, and the tractor paper 6 is set in the pin belt 14, and in a state of closing a movable cover 17, an upward exposing paper pressing-down area Ae is formed in a part of a placing area Ap of the tractor paper 6. A worker can close the movable cover 17 while pressing down the paper pressing-down area Ae by hands and fingers. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a tractor and an office machine including the tractor.

  Conventionally, a tractor that conveys tractor paper by a rotating pin belt is known (for example, Patent Document 1). Pins are formed on the outer peripheral surface of the pin belt at a constant pitch along the longitudinal direction. Further, feed holes into which the pins are inserted at the same pitch as the pins are formed along the paper feed direction (conveyance direction) at both edges in the width direction of the tractor paper. The operator places the tractor paper on the tractor in a state where the pins of the two pin belts are inserted into the feed holes on both sides in the width direction of the tractor paper. The tractor rotates the pin belt and conveys the set tractor paper.

  Furthermore, the tractor of Patent Document 1 includes a paper pressing plate that covers the tractor paper set by the operator so as to be opened and closed. The operator opens and sets the tractor paper pressing plate of the tractor and places the tractor paper on the opened portion, and then closes the openable paper pressing plate.

  In the tractor disclosed in Patent Document 1, it is desired that when the operator closes the paper pressing plate, the pin comes out of the feed hole of the tractor paper and the tractor paper does not come off the pin belt. At this time, if the operator presses the tractor paper onto the tractor body or the pin belt with fingers or the like, the tractor paper can be prevented from coming off the pin belt. However, since it is necessary for the operator to remove the fingers from the tractor paper before the openable paper holding plate reaches the closed position, the operator holds the tractor paper with the fingers until the end of the closing operation of the paper holding plate. I can't leave it. Then, it is troublesome for the operator to release the finger from the tractor paper immediately before the paper pressing plate reaches the closed position.

  Accordingly, an object of the present invention is to obtain a tractor that can easily prevent the tractor paper from coming off the pin belt by a simpler operation, and an office machine including the tractor.

  The present invention includes a pin inserted into a feed hole formed in a tractor sheet, and an endless pin belt that conveys the tractor sheet by rotating, a base that supports the pin belt in a rotatable manner, and the base or A movable cover that covers a part of the placement area of the tractor paper placed on the pin belt so as to be openable and closable from above, the pin is inserted into the feed hole, and the tractor paper is set on the pin belt, and In the state where the movable cover is closed, a paper pressing area is formed in another part of the placement area.

  In the tractor according to the present invention, the operator can close the movable cover while pressing the paper pressing area of the tractor paper with a finger or the like. Further, in the tractor according to the present invention, the operator does not need to separate his / her fingers from the tractor sheet before closing the movable cover as in the prior art. Therefore, according to the tractor according to the present invention, it is possible to easily suppress the tractor paper from being detached from the pin belt by a simpler operation.

FIG. 1 is a perspective view of an office machine including a tractor according to an embodiment of the present invention. FIG. 2 is a perspective view of the tractor according to the embodiment of the present invention, and shows a state where the tractor paper is set. FIG. 3 is a side sectional view showing a section along the circumferential direction of the pin belt of the tractor according to the embodiment of the present invention, and is a view showing a state in which the movable cover is opened. FIG. 4 is a side sectional view showing a cross section along the circumferential direction of the pin belt of the tractor according to the embodiment of the present invention, and shows a state where the movable cover is opened and the tractor paper is placed on the pin belt and pressed with fingers. FIG. FIG. 5 is a side cross-sectional view showing a cross section of the tractor according to the embodiment of the present invention along the circumferential direction of the pin belt, and shows a state in which the tractor paper is placed on the pin belt and pressed with fingers and the movable cover is closed. FIG.

  Hereinafter, embodiments of a tractor according to the present invention and an office machine including the tractor will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, the office machine 1 according to the present embodiment includes a main body 3. A main body (not shown) of a computer and a printer (not shown) are accommodated in the housing 2 of the main body 3. Further, the office machine 1 includes a keyboard 4 as an input unit for various information, and a display 5 as an output unit (display unit) for various information.

  A tractor paper (see FIG. 2) 6 printed by the printer unit of the office machine 1 is a belt-like paper in which detachable perforations (not shown) are formed at regular intervals in the longitudinal direction. A plurality of feed holes 6b are formed at both sides of the tractor paper 6 at a constant pitch along the longitudinal direction. The tractor paper 6 is placed on the side of the office machine 1 in a stacked state folded in a zigzag manner with the perforation as a boundary, and is sequentially pulled out from above by being conveyed by the tractor 9 (see FIGS. 2 to 5). As an example, the tractor sheet 6 is used as a slip sheet in which a plurality of sheets are stacked.

  A paper feed port 7 for tractor paper 6 is formed at a position on the opposite side of the display 2 from the housing 2. A paper discharge port 8 is formed above the housing 2 and is discharged after the tractor paper 6 taken into the housing 2 from the paper supply port 7 is printed by the printer unit.

  Further, a tractor 9 (see FIGS. 2 to 5) that conveys the tractor paper 6 is accommodated in the housing 2. As shown in FIG. 5 and the like, a paper path 10 from the paper supply port 7 to the paper discharge port 8 is formed in the tractor 9. The tractor 9 transports the tractor paper 6 taken from the paper feed port 7 toward the paper discharge port 8 via the printer unit in the paper path 10 and discharges it from the paper discharge port 8. Although not shown, a paper feed port is also formed below the display 5 in this embodiment. A transport mechanism different from the tractor 9 (not shown) transports the paper inserted by the operator from the paper feed port under the display 5 with a roller or the like, and discharges it from the paper discharge port 8 through the printer unit.

  As shown in FIG. 2, the tractor 9 includes a belt unit 11 having a pin belt 14 (see FIG. 3). The belt unit 11 is disposed at a position corresponding to both end edges 6 a in the width direction of the tractor paper 6. The belt unit 11 extends along both end edges 6 a in the width direction of the tractor paper 6. The belt unit 11 is curved in a downwardly convex arch shape. Further, the tractor 9 includes a guide portion 12 that is curved in an arc shape along the shape of the belt unit 11. The guide portion 12 faces the intermediate portion in the width direction of the set tractor paper 6. Further, the tractor 9 includes a shaft 13 that extends along the width direction of the tractor paper 6. The shaft 13 is installed between the pair of belt units 11. A shaft (not shown) other than the shaft 13 can be installed between the belt units 11. Further, the pair of belt units 11 are arranged in parallel to each other. The tractor 9 slides one of the belt units 11 along the shaft 13 to variably set the distance between them, and conveys the tractor paper 6 having a different width.

  As shown in FIGS. 3 to 5, the belt unit 11 includes a base 15, a fixed cover 16, a movable cover 17, and a roller holder 19. The base 15 supports an endless pin belt 14 in a rotatable manner. The base 15 supports the fixed cover 16, the movable cover 17, and the roller holder 19. The fixed cover 16 and the movable cover 17 cover the upper portion of the base 15 with a space therebetween. The roller holder 19 has a roller 18. The roller 18 presses the pin belt 14 from above and rotates together with the rotation of the pin belt 14.

  The pin belt 14 is made of a flexible material such as an elastomer. The pin belt 14 has a belt-like belt portion 14a having a constant width and a plurality of pins 14b protruding at a constant pitch in the circumferential direction at the center portion in the width direction on the outer peripheral side of the belt portion 14a. The pin belt 14 is stretched between a plurality of rollers 20 and 20 that are rotatably supported by the base 15. The pin belt 14 is pressed from the inside to the outside of the curved shape of the belt unit 11 by the roller 18 of the roller holder 19 described above. At least one of the plurality of rollers 20 is rotationally driven via a motor, a gear, a shaft, or the like (all not shown). In the present embodiment, the roller 20A disposed on the right side in FIG. 5 rotates counterclockwise to rotate the pin belt 14 along a constant locus. In the bridge portion on the upper side of the pin belt 14, the belt portion 14a and the plurality of pins 14b move toward the left in FIG. That is, in FIG. 5, the tractor paper 6 is conveyed leftward on the upstream side (near the paper feed port 7), and upward from the upper left side from the middle portion in the longitudinal direction to the downstream side (near the paper discharge port 8). Direction.

  Further, as shown in FIG. 5, the fixed cover 16, the movable cover 17, and the lower surfaces 16 a, 17 a, and 19 a of the roller holder 19 are disposed to face the upper surface 15 a of the base 15 with a substantially constant interval. Yes. The tractor paper 6 is slidably placed on the upper surface 15 a of the base 15. A flat and long space formed between the lower surfaces 16a, 17a, 19a and the upper surface 15a is a sheet path 10 through which the tractor sheet 6 is conveyed.

  At least in the middle in the longitudinal direction of the paper path 10, the protruding end portion side of the pin 14 b protrudes from the upper surface of the base 15. Therefore, in this portion, the edge of the feed hole 6b of the tractor paper 6 is locked by the pin 14b that moves as the pin belt 14 rotates. Therefore, the tractor paper 6 is pulled by the pin 14b. The tractor 9 may carry the tractor paper 6 on the belt portion 14a that rotates.

  As shown in FIG. 2, the movable cover 17 is rotatably supported on the base 15 of the belt unit 11 via a hinge portion 15b. The movable cover 17 reciprocates between an upright open position shown in FIG. 3 and a prone closed position shown in FIGS. In the present embodiment, the hinge portion 15 b is provided on the outer side in the width direction of the tractor paper 6 in each belt unit 11. The pivot shaft of the hinge portion 15 b is along the both end edges 6 a of the tractor paper 6 in the width direction. Accordingly, the two movable covers 17 provided in each of the belt units 11 open in a double-opening manner from the closed position where they face each other inward in the width direction toward the outer side in the width direction and the upper side of the tractor paper 6. Further, it is preferable to provide a click mechanism between the movable cover 17 and the base 15 so as to maintain the movable cover 17 at least in the open position and the closed position unless an external force exceeding a specified value is applied. An elastic member such as a coil spring that urges the movable cover 17 in the closing direction or the opening direction can be interposed between the movable cover 17 and the base 15.

  Next, with reference to FIGS. 3 to 5, a procedure for an operator to set the tractor paper 6 on the tractor 9 will be described. First, as shown in FIG. 3, the operator opens the movable cover 17 with fingers or the like, and exposes the upstream region of the upper surface 15 a of the base 15 in the transport direction. Then, as shown in FIG. 4, the operator places the tractor paper 6 in this area with fingers or the like and sets it. The placement area Ap of the tractor paper 6 at the time of setting is shown in FIGS.

  Then, the operator presses the set tractor paper 6 onto the upper surface 15a of the base 15 with fingers F or the like. At this time, the operator presses a region of the tractor paper 6 on the upstream side (right side in FIGS. 4 and 5) with respect to the upstream side edge 17 b of the movable cover 17 in the conveying direction with the finger F or the like.

  Next, as shown in FIG. 5, the operator closes the movable cover 17. Here, in the present embodiment, the movable cover 17 in the closed position covers only a part of the placement area Ap. Therefore, the paper pressing area Ae exposed upward is formed in the other part. Specifically, since the movable cover 17 covers only the downstream side in the transport direction of the placement area Ap from above, the paper pressing area Ae exposed upward is formed on the upstream side in the transport direction of the placement area Ap. Is done. That is, in the step shown in FIG. 4 where the operator presses the placement area Ap of the tractor paper 6 with the finger F or the like with the movable cover 17 opened, the operator presses the paper pressing area Ae. The paper pressing area Ae is not covered with the movable cover 17 even when the movable cover 17 is closed, and remains exposed upward, and has a sufficient width to be pressed with the finger F or the like. Therefore, the operator can close the movable cover 17 while pressing the paper pressing area Ae with the fingers F or the like. Therefore, according to the present embodiment, unlike the prior art described above, the operator does not need to remove the finger F or the like from the tractor paper 6 before the movable cover 17 is closed. Therefore, according to the present embodiment, it is easy to suppress the tractor paper 6 from being detached from the pin belt 14 with a simpler operation.

  When an operator sets the tractor paper 6 on the tractor 9, the operator usually holds the tractor paper 6 with fingers or the like and sets the tractor paper 6 close to the tractor 9 from the upstream side in the transport direction. That is, the operator who sets the tractor paper 6 is often on the upstream side in the transport direction with respect to the tractor 9 and the office machine 1. For this reason, if the paper pressing area Ae is formed on the downstream side in the transport direction of the placement area Ap, the worker is paper farther than the part that closes the movable cover 17 with respect to the worker. The movable cover 17 is closed while pressing the holding area Ae with the fingers F or the like to avoid the fingers F or the like from interfering with the movable cover 17. In this regard, in the present embodiment, the paper pressing area Ae is formed on the upstream side in the transport direction in the placement area Ap, and the movable cover 17 and fingers F and the like are compared with the case where the paper press area Ae is formed on the downstream side in the transport direction. Interference is less likely to occur. Therefore, the operator can more easily close the movable cover 17 while pressing the paper pressing area Ae of the tractor paper 6 with the fingers F or the like. Furthermore, according to the present embodiment, the operator holds two movable covers with other fingers such as the index finger while pressing the paper holding area Ae of the tractor paper 6 corresponding to the two belt units 11 with the thumbs of the left and right hands. 17 can be closed by pushing down inward in the width direction of the tractor paper 6. That is, according to the present embodiment, the operator can relatively easily set the tractor paper 6 on the belt units 11 on both sides in the width direction of the tractor paper 6 with both hands at once.

  Further, referring also to FIG. 1, in the present embodiment, the paper holding area Ae is located on the inner side of the housing 2 than the paper feed port 7 formed in the housing 2 of the office machine 1 in the placement area Ap. It will be understood that it is formed on the opening edge 7a side (that is, in a region adjacent to the opening edge 7a), not on the (back side). As described above, when the paper pressing area Ae is formed in the area adjacent to the opening edge 7a, the operator does not need to put the finger F or the like that presses the paper pressing area Ae to the back side of the paper feeding port 7. Therefore, the operator can close the movable cover 17 relatively easily while pressing the paper pressing area Ae of the tractor paper 6 with the fingers F or the like.

  As shown in FIG. 5, in this embodiment, the upper surface 15 a of the base 15 is spaced upward from the pin belt 14 on the upstream side in the transport direction. Therefore, the paper pressing area Ae includes a non-projecting section S in which the tractor paper 6 is spaced upward from the pin belt 14 and the pin 14b does not protrude upward from the feed hole 6b. The operator cannot press the finger F or the like on the tractor paper 6 where the pin 14b protrudes upward through the feed hole 6b. In this regard, according to the present embodiment, since the non-projecting section S is included in the paper pressing area Ae, an area in which the operator can press the tractor paper 6 with the finger F or the like in the paper pressing area Ae is wider. Can be secured. Therefore, the operator can close the movable cover 17 more reliably. Further, when a section where the pin 14b protrudes upward from the feed hole 6b occurs more widely in the paper pressing area Ae, an extra large paper pressing area Ae is secured as the area pressed by the finger F or the like becomes narrower. There is a risk that it will be necessary. In this regard, if the non-projecting section S is formed in the paper pressing area Ae as in the present embodiment, the paper pressing area Ae can be made relatively small, and the apparatus configuration can be made more compact.

  As shown in FIG. 5, in this embodiment, in the portion where the paper pressing area Ae is placed on the upper surface 15 a of the base 15, the upper surface 15 a of the base 15 and the pin belt 14 convey the tractor paper 6 in the conveying direction. The distance gradually increases toward the upstream side. On the upper surface 15a of the base 15, the boundary between the portion corresponding to the non-projecting section S on the upstream side in the paper pressing area Ae and the portion corresponding to the section where the pin 14b on the downstream side is inserted into the feed hole 6b If there is a step, smooth conveyance of the tractor paper 6 may be hindered. In this respect, in the present embodiment, in the portion corresponding to the non-projecting section S, the upper surface 15a of the base 15 and the pin belt 14 are separated farther toward the upstream side in the transport direction of the tractor paper 6. Therefore, according to this embodiment, it can suppress that a big level | step difference arises in the said boundary. Therefore, according to the present embodiment, the non-projecting section S can be obtained relatively easily while ensuring smoother conveyance of the tractor paper 6.

  As described above, in the tractor 9 according to the present embodiment and the office machine 1 including the tractor 9, the pin 14b is inserted into the feed hole 6b, the tractor paper 6 is set on the pin belt 14, and the movable cover 17 is In the closed state, a paper pressing area Ae exposed upward is formed in a part of the placement area Ap. Therefore, the operator can close the movable cover 17 while pressing the paper pressing area Ae with the finger F or the like, and needs to separate the finger F or the like from the tractor paper 6 before closing the movable cover 17 as in the above-described conventional technique. There is no. Therefore, according to the present embodiment, it is easy to suppress the tractor paper 6 from being detached from the pin belt 14 by a simpler operation than the above-described conventional technology.

  In this embodiment, the paper pressing area Ae is formed on the upstream side in the transport direction of the tractor paper 6 in the placement area Ap. Therefore, in the present embodiment, interference between the movable cover 17 and the finger F or the like is less likely to occur as compared with the case where the paper pressing area Ae is formed on the downstream side in the transport direction in the placement area Ap. Therefore, the operator can more easily close the movable cover 17 while pressing the paper pressing area Ae of the tractor paper 6 with the fingers F or the like.

  Further, in the present embodiment, the paper pressing area Ae includes a non-projecting section S in which the tractor paper 6 is separated from the pin belt 14 and the pin 14b does not protrude upward from the feed hole 6b. According to the present embodiment, it is possible to secure a wider area in which the operator presses the tractor paper 6 with the finger F or the like in the paper pressing area Ae. Therefore, the operator can more reliably close the movable cover 17 while pressing the paper pressing area Ae of the tractor paper 6 with the fingers F or the like.

  Further, in the present embodiment, in the portion where the paper pressing area Ae is placed on the upper surface 15 a of the base 15, the upper surface 15 a of the base 15 and the pin belt 14 become larger toward the upstream side in the conveyance direction of the tractor paper 6. It is separated. Therefore, according to the present embodiment, the non-projecting section S can be obtained relatively easily while ensuring smoother conveyance of the tractor paper 6.

  In the present embodiment, the paper pressing area Ae is formed adjacent to the opening edge 7 a of the paper feed port 7. Therefore, compared to the case where the paper pressing area Ae is formed on the inner side (back side) of the housing 2, the operator can easily press the paper pressing area Ae with the finger F or the like. The movable cover 17 can be closed more reliably while pressing the paper pressing area Ae.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and various modifications can be made. For example, the office machine according to the present invention can be configured as a printer device that does not include a main body of a computer. Further, the mounting position of the tractor, the shape of the tractor, the mounting posture, etc. are not limited to the above embodiment.

  In addition, the specifications (position, size, shape, etc.) of the paper pressing area can be changed as long as the movable cover can be moved from the closed position to the open position while being pressed with fingers. . For example, the paper pressing area in the loading area can be formed at a position other than the upstream side in the transport direction or the opening edge side of the paper feed port. Moreover, a paper pressing area can be formed by providing a cutout or a through hole in the movable cover. In this case, the notch and the through hole are at least as large as a finger can enter. In the above embodiment, the tractor paper is placed on the base of the belt unit (tractor) and the paper pressing area of the tractor paper is pressed onto the base with a finger or the like. However, the tractor paper is a pin belt belt. The present invention can also be implemented as a configuration that is placed on the part and presses the paper pressing area of the tractor paper onto the belt part of the pin belt with fingers or the like. Moreover, although the said embodiment illustrated the structure which a tractor is accommodated in a housing | casing and reduced in size, this invention can be implemented also as a structure which the upstream side of a tractor protrudes out of a housing | casing. Further, the movable cover can be automatically opened and closed by an actuator or the like.

  As described above, the present invention is useful for a tractor that transports tractor paper by a pin belt and an office machine including the tractor.

JP 2008-7301 A

DESCRIPTION OF SYMBOLS 1 Office machine 2 Housing | casing 6 Tractor paper 6b Feeding hole 7 Paper feed opening 7a Opening edge 9 Tractor 14 Pin belt 14b Pin 15 Base 15a Upper surface 17 Movable cover Ae Paper holding area Ap Placement area S Non-projection section

Claims (6)

An endless pin belt having a pin inserted into a feed hole formed in the tractor paper and conveying the tractor paper by rotating;
A base that supports the pin belt in a rotatable manner;
A movable cover that covers a part of the placement area of the tractor paper placed on the base or the pin belt so as to be openable and closable from above;
With
Paper that is exposed upward in another portion of the placement area of the tractor paper when the pin is inserted into the feed hole, the tractor paper is set on the pin belt, and the movable cover is closed A tractor characterized in that a pressing region is formed.   The tractor according to claim 1, wherein the paper pressing area is formed on the upstream side in the transport direction of the tractor paper in the placement area.   3. The tractor according to claim 1, wherein the paper pressing area includes a non-projecting section in which the tractor paper is separated from the pin belt and the pin does not project upward from the feed hole. 4. The paper holding area is formed on the upstream side in the transport direction of the tractor paper in the placement area, and is placed on the upper surface of the base,
4. The tractor according to claim 3, wherein the upper surface of the base and the pin belt are greatly separated toward the upstream side in the conveyance direction of the tractor paper at a portion where the paper pressing area is placed. A housing in which a paper feed slot for inserting tractor paper is formed;
The tractor according to any one of claims 1 to 4, wherein at least a part of the tractor is housed in the housing.
An office machine characterized by comprising.   The office machine according to claim 5, wherein the paper holding area is formed adjacent to an opening edge of the paper feed port.

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