JP4684846B2 - Paper take-up reel - Google Patents

Description

  The present invention relates to a paper take-up reel that takes up and holds a long paper such as journal paper.

  The journal printer is provided with a paper take-up reel that takes up printed journal paper. The paper take-up reel has a structure in which a paper is wound by rotating with a rotational driving force. For this reason, when replacing the journal paper, it is necessary to remove the journal paper taken up from the paper take-up reel.

  However, since the journal paper is wound around the paper take-up reel several times, the wrapping force of the journal paper on the paper take-up reel becomes strong, and there is a problem that a strong force is required for the removing operation.

  Patent Document 1 describes an invention in which, for example, a pair of cores attached to both ends of a journal sheet are held so as to be able to be separated and separated, and the cores are separated when the journal sheet is attached or detached. With such a structure, the journal paper can be easily attached and detached by simply separating the pair of cores.

JP 11-217138 A

  According to the invention described in Patent Document 1, it is possible to easily remove the printed journal paper without requiring a strong force. However, the structure becomes large and the apparatus becomes large. For this reason, it is desirable to use a paper take-up reel having a simple structure in which a paper is wound by rotating with a rotational driving force applied. However, in the paper take-up reel having such a structure, as described above, the paper A strong force is inevitably required when removing the hood, and its workability is not good. In particular, when there is a need to change journal paper during accounting processing, troublesome work is required due to the poor workability of replacing printed journal paper, and the customer who is accounting is waiting for service. This will lead to a decline, and the store image may deteriorate.

  An object of the present invention is to obtain a paper take-up reel that can easily remove printed journal paper without requiring a strong force.

The present invention provides a base on which a paper is wound by rotating with a rotational driving force applied thereto, a fixing portion for fixing a starting end side of the paper wound around the base, and one side of the base from the one side. A pressing portion that is held movably within a range of a predetermined amount of movement toward a paper pulling direction toward the other side, and is positioned at a position where one end surface of the paper that is wound and held on the base is opposed to each other, and the pressing An elastic member that urges a portion in a direction opposite to the paper pulling direction, and a pressing operation in the paper pulling direction that is provided on a part of the pressing portion, and the pressing portion is elastically moved according to the pressing operation. An operation unit that moves the sheet in the paper pulling direction against a biasing force of the member .

  According to the present invention, it is possible to move the pressing portion in the paper drawing direction by a pressing operation on the operation portion, and thus it is possible to easily remove the printed journal paper without requiring a strong force.

  An embodiment of the present invention will be described with reference to FIGS. The present embodiment is an application example to a journal printer (not shown) that records merchandise sales data processing information on paper P (see FIGS. 7 and 9) that is journal paper.

  FIG. 1 is a perspective view of the entire paper take-up reel. The paper take-up reel 101 has, as a basic configuration, a cylindrical base 102 on which the paper P is wound by rotating with a rotational driving force. The base body 102 has a fixing portion 103 that fixes one end side of the paper P wound around the base body 102 on a part of the outer peripheral surface thereof. Further, the substrate 102 moves toward one side A of the base 102 in the paper drawing direction from the one side A toward the other side B (indicated by an arrow C in FIGS. 1 to 2, 7, and 9). A free pressing portion 104 is slidably attached. The pressing portion 104 is positioned at a position where the one end surface P1 of the paper P wound and held on the base 102 is opposed. Further, a disc-shaped flange 105 is attached to the base 102 on one side A thereof. The flange 105 is attached to the outside of the pressing portion 104.

  FIG. 2 is an overall perspective view of the paper take-up reel 101 as viewed from the opposite direction to FIG. The flange 105 has a center hole 106 at the center thereof, and a portion of one side A of the base body 102 projects from the center hole 106. The operation unit 107 looks into the protruding portion of the base body 102. The operation unit 107 is provided in a part of the pressing unit 104, and the paper pulling direction from one side A to the other side B (in FIG. 1 to FIG. 2, FIG. 7 and FIG. 9, an arrow C). The pressing unit 104 is moved in the paper pulling direction in response to the pressing operation. The center hole 106 formed in the flange 105 has a role of realizing the attachment of the flange 105 to the base body 102 and also serves as an exposure window for exposing the operation unit 107.

  FIG. 3 is a longitudinal side view in which each part is disassembled. The paper take-up reel 101 is formed by sequentially attaching a pressing portion 104 and a flange 105 to one side A of the base 102. Hereinafter, the base body 102, the pressing portion 104, and the flange 105 will be described in detail with reference to FIG.

  FIG. 4 is a perspective view of the base body 102. The base 102 is a member formed in a substantially cylindrical shape by a resin mold. The base body 102 has a support ring 108 having the same diameter on one side A and the other side B thereof. These support rings 108 are rotatably fitted in a support portion (not shown) of the paper take-up reel 101 of the journal printer, for example, a pair of U-shaped grooves, and the paper take-up reel 101 with respect to such a support portion. Served for support.

  On one side A of the base body 102, a screw portion 109 for attaching a flange is formed so as to be positioned inside the support ring 108. The screw portion 109 has a larger diameter than the support ring 108 and a smaller diameter than the outer peripheral surface of the base body 102. Therefore, a stepped portion 110 is formed in a ring shape between the screw portion 109 and the outer peripheral surface of the base 102. The step portion 110 connects the screw portion 109 and the outer peripheral surface of the base body 102 at a right angle.

  Further, four grooves 111 extending in the axial direction from the end portion are formed on one side A of the base body 102. These grooves 111 are formed so as to intersect so that a cross-shaped member can be moved toward the center of the base 102 when one side A of the base 102 is viewed from the front.

  Further, the fixing portion 103 formed on the base body 102 is formed by a pair of clamping members 112 that are cantilevered on the one side A side with the other side B side of the base body 102 as a free end. Such a structure of the clamping member 112 is shown in FIG. That is, as shown in FIG. 3, the base body 102 is a portion of the holding member 112 and has a double structure in which the small diameter portion SD and the large diameter portion LD are connected to one side A of the base body 102. The diameter portion LD is the clamping member 112. The large-diameter portion LD is formed to have the same diameter as the outer peripheral portion of the base body 102 where the clamping member 112 is not provided, and is separated from the outer peripheral portion of the base body 102 where the clamping member 112 is not provided by two slits 113. It has been. Further, the small diameter portion SD and the large diameter portion LD are both arranged in parallel with the paper take-up reel 101 and are expanded in the outer peripheral direction on the free end side formed on the other side B.

  FIG. 5 is a perspective view of the pressing portion 104. A base hole 114 is formed inside the base 102 (see FIG. 3). The pressing portion 104 is a resin mold product in which a base 115 fitted into the base hole 114 from one side A of the base 102 and a pressing body 116 extending radially from the base 115 are integrally formed. The base 115 has a cap shape with a deep depth, and has a base hole 117 having one end opening (see FIG. 3). The end of the base 115 where the base hole 117 is not opened is the operation unit 107 described above. The pressing body 116 extends in a cross shape from the base 115 and is formed so as to pass through the four grooves 111 formed in the base 102 in a state where the base 115 is fitted in the base hole 114.

  A base hole 114 formed in the base 102 is partitioned by a partition wall 118 between one side A and the other side B (see FIG. 3). A guide pin 119 is erected from the partition wall 118 in the base body hole 114 on one side A. The guide pin 119 is formed with a diameter and a length that can maintain a fitted state between the side hole A of the base 102 and the base hole 117 of the pressing portion 104 fitted into the base hole 114.

  As shown in FIG. 3, when the base 115 of the pressing portion 104 is fitted into the base hole 114 from one side A of the base 102, a coil spring 120 is attached as an elastic member. The coil spring 120 is held in a compressed state between the partition wall 118 and the base 115 (see FIGS. 8 and 9).

  FIG. 6 is a perspective view of the flange 105 viewed from the same direction as FIG. A female screw 121 is cut in the center hole 106 formed in the flange 105. The female screw 121 is formed in a shape that is screwed into a screw portion 109 formed in the base body 102. Such a flange 105 has a recess 122 and has a cap shape with a shallow depth. The thickness of the portion forming the bottom of the recess 122 is substantially the same as the axial length of the screw portion 109. Four holes 123 are formed at the bottom of the flange 105.

  FIG. 7 is a perspective view of the flange 105 as seen from the opposite direction to FIG. As described above, FIG. 6 looks at the flange 105 from the same direction as FIG. This direction is a direction in which the flange 105 is viewed from the side of the pressing portion 104 facing the pressing body 116. Therefore, FIG. 7 is viewing the flange 105 in the same direction as FIG. 2, that is, from the back surface side of the pressing portion 104 facing the pressing body 116. The flange 105 viewed from this direction is formed in a planar shape.

  Therefore, to assemble the paper take-up reel 101, the base 115 of the pressing portion 104 is fitted into the base hole 114 from one side A of the base 102 via the coil spring 120 as shown in FIG. At this time, a guide pin 119 provided on the base 102 side is fitted into the base hole 117 of the base 115. In this state, the female screw 121 formed in the center hole 106 of the flange 105 is screwed into the screw portion 109 formed in the base 115, and the flange 105 is attached to the base body 102. At this time, the flange 105 is fastened to the base 115 at a position where the bottom of the flange 105 contacts the stepped portion 110 of the base body 102. Thereby, the assembly of the paper take-up reel 101 is completed.

  FIG. 8 is a vertical side view of the entire sheet take-up reel 101. As shown in FIG. 8, the operation portion 107 formed on one end side of the base portion 115 constituting the pressing portion 104 is fitted into a support ring 108 provided on one side A of the base 102, and these operation portions The ends of 107 and support ring 108 are positioned in the same plane.

  The other end side of the base portion 115 constituting the pressing portion 104 is disposed opposite to the partition wall 118 in the base hole 114 provided in the base body 102 with a predetermined distance. The coil spring 120 disposed in the gap between the other end side of the base 115 and the partition wall 118 is maintained in a compressed state with room for further compression. Accordingly, the pressing portion 104 is biased toward the one side A of the base 102 and is positioned by the pressing body 116 coming into contact with the bottom surface of the flange 105. Further, the pressing portion 104 is movable in a direction in which the base 115 is close to the direction of the partition wall 118, that is, toward the other side B of the base body 102. With this movement, the pressing body 116 is also moved to the other side of the base body 102. It can move toward direction B. The amount of movement at this time is determined by the fact that there is no room for the coil spring 120 to be compressed.

  The clamping member 112 is formed up to the pressing body 116. Accordingly, the paper P whose starting end side is fixed to the holding member 112 is wound around the paper take-up reel 101 with its one end face P1 in contact with the pressing body 116.

  In such a configuration, in order to mount the paper take-up reel 101 in a journal printer (not shown), first, the starting end side of the paper P that is a journal paper is inserted into the slit 113 formed on the outer peripheral surface of the base 102. Thereby, the starting end side of the paper P is sandwiched between the small diameter portion SD and the large diameter portion LD of the paper take-up reel 101, that is, the portion of the clamping member 112. At this time, the paper P is pinched in a bent state at the portion of the pinching member 112, so that it receives sliding resistance in the direction of falling off. For this reason, the paper P does not have to be sandwiched in a gap between the small diameter portion SD and the large diameter portion LD of the paper take-up reel 101. In this state, support rings (not shown) of the paper take-up reel 101 included in the journal printer, for example, support rings 108 provided at both ends of the pair of bases 102 are rotatably fitted in a pair of U-shaped grooves. Thereby, the mounting operation of the paper take-up reel 101 to the journal printer is completed.

  The paper take-up reel 101 mounted on the journal printer must be driven to rotate in the paper P take-up direction. Therefore, as an example, a driven gear (not shown) is press-fitted into the base hole 114 located on the other side B of the paper take-up reel 101. In this case, each part is configured so that the rotation center of the driven gear and the paper take-up reel 101 coincide. As a result, a driving force from a driving source (not shown) can be transmitted to the driven gear via a gear train, for example, and the paper take-up reel 101 can be driven to rotate.

  The paper take-up reel 101 takes up the paper P by being driven to rotate. In FIG. 8, a portion indicated by a one-dot chain line virtually shows the paper P that has been taken up by the paper take-up reel 101. As shown in FIG. 8, the paper P is taken up by the paper take-up reel 101 with one end face P <b> 1 in contact with the pressing body 116. This is because the clamping member 112 is formed up to the pressing body 116 as described above. As a result, the one end surface P1 of the paper P is guided to the pressing body 116 and the flange 105.

  FIG. 9 is a longitudinal sectional side view of the entire paper take-up reel 101 showing a paper drawing state. When the paper P mounted on the journal printer is taken up by the paper take-up reel 101 and printed, the paper P taken up from the paper take-up reel 101 needs to be removed. At this time, as shown in FIG. 9, the operation unit 107 is pressed with, for example, a finger. Then, the pressing portion 104 moves toward the other side B of the base 102, and accordingly, the pressing body 116 provided on the pressing portion 104 presses one end surface P 1 of the paper P and winds around the outer peripheral surface of the base 102. Slide the sheet P toward the other side B. As a result, the paper P is easily removed from the base 102 and can be easily removed from the paper take-up reel 101. Therefore, according to the paper take-up reel 101 of the present embodiment, it is possible to easily remove the paper P, which is a printed journal paper, without requiring a strong force.

1 is an overall perspective view showing an embodiment of the present invention. It is the whole perspective view seen from the direction opposite to FIG. It is the vertical side view which decomposed | disassembled each part. It is a perspective view of a base. It is a perspective view of a press part. It is the perspective view of the flange seen from the same direction as FIG. It is a perspective view of the flange seen from the direction opposite to FIG. It is the whole vertical side view. It is the whole vertical side view which shows a paper drawing state.

Explanation of symbols

102 Base, 103 Fixing part, 104 Pressing part, 105 Flange, 106 Center hole (exposed window), 107 Operation part, 111 Groove, 112 Holding member, 115 Base part, 116 Pressing body, 120 Coil spring (elastic member), P paper , P1 One end of the paper

Claims (5)

A substrate on which a sheet is wound by rotating with a rotational driving force;
A fixing portion for fixing a starting end side of the paper wound around the base body;
One side of the base is opposed to one end surface of the paper that is held movably within a range of a predetermined amount of movement from one side to the other side in the paper pulling direction toward the other side. A pressing part positioned at a position to be arranged;
An elastic member that urges the pressing portion in a direction opposite to the paper drawing direction;
An operation unit that is provided at a part of the pressing unit and that receives a pressing operation in the paper pulling direction and moves the pressing unit in the paper pulling direction against the urging force of the elastic member according to the pressing operation. When,
A paper take-up reel. The base is formed in a cylindrical shape having a plurality of grooves extending in the axial direction from the one side,
The pressing portion includes a base that is slidably accommodated inside the base body, and a pressing body that extends radially from the base and passes through the groove.
The paper take-up reel according to claim 1.   The paper take-up reel according to claim 2, wherein the operation unit is provided at an end of the base opposite to a portion slidably accommodated inside the base body.   The paper take-up reel according to claim 3, further comprising: an exposure window that exposes the operation portion, and a flange attached to the one side of the base body outside the pressing portion. The fixing unit is configured that is formed by the other side the one side clamping member which is to have the side piece of the side as the free end of the base, the paper winding according to any one of claims 1 to 4 Reel.

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