JPH0138102Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The disclosed technology is a spindle of a sheet roll in which a tape-like sheet is wrapped around a core cylinder, such as a label roll used to attach labels to products in the liquid market such as supermarkets. It belongs to the technical field of the structure of attachment and holding devices.

<Summary of the gist> This invention is based on a label roll, etc., in which a sheet consisting of a long backing paper on which labels, etc. are successively pasted at regular intervals is wound around a cylindrical core tube. When attached to a support shaft integrally provided in a cantilever type with the frame of the unwinding/rewinding device, the sheet roll is latched onto an engaging portion formed at a predetermined portion of the end of the support shaft to hold the sheet roll so that it cannot fall off. In particular, the sheet roll guard consists of a rectangular plate-shaped guard body that engages with a ring-shaped groove provided at a predetermined portion of the spindle from the side of the spindle at a predetermined position. A guide slit is provided inward from the edge, and a slit notch formed in the longitudinal direction of the guard body is connected to the guide slit, and the slit notch can be engaged with the small-diameter ring-shaped groove of the support shaft, and the relative rotation is possible. This invention relates to a seat roll guard structure that is flexible.

<Prior Art> As is well known, in the secondary market, for example, supermarkets, etc., products are priced by pasting labels that display pricing information such as unit price, weight, total price, etc. However, in most cases, labels for pricing are supplied by unwinding a tape-like sheet with a label attached to a backing paper from a roll wrapped around a core cylinder, and printing etc. on the label. This is done when a large number of adhesive tapes are attached in advance in the back yard to products of different weights or fixed price products with a fixed price.

The method of feeding out sheets from a roll is also used to supply receipts when issuing receipts at a register. Therefore, in registers, receipt issuing machines, label printers, etc., the roll storage capacity is within the allowable range. A roll corresponding to the size is used.

In this case, for example, the mode of a label printer type is briefly explained in FIG. 1. A label roll 1 of a predetermined length is made by wrapping a long sheet on which a large number of labels have been pasted around a core cylinder 2 made of cardboard. The sheet 4 is loosely supported on the support shaft 3 of the device, and the sheet 4 is guided by a guide 5 and fed out by a drive roller 6, and a printer 7 such as a thermal head prints predetermined information such as price and weight on a label. It is designed to be printed.

In this case, in order to speedily attach and detach the label roll 1 to and from the support shaft 3 via the core cylinder 2, and to improve serviceability, generally the support shaft 3 is attached to the device frame 8 as shown in FIG. is provided in a cantilever type, and depending on the design, a flange 9 is provided on the base side so that the label roll 1 can be inserted and removed from the tip side.

Depending on the tension during operation with respect to the sheet 4, the spindle 3 is either fixed or rotatable, but in either case, the label roll 1 can be inserted into the spindle 3 for rotation after being set. It will be worn.

For this reason, a sheet roll guard 11 is provided at the end of the spindle as a stopper in order to prevent the label roll 1 from falling off the spindle 3 during operation, as well as to prevent sideways movement in the axial direction. There is.

For example, as shown in FIGS. 2 and 3, the knob bolt 10 is screwed onto the end of the support shaft 3, and the center hole 12 of the plate-shaped roll guard 11 is inserted into the knob bolt 10.
Push the knob bolt 10 through the head in the direction A in Figure 3, then shift it in the length direction B, engage the narrow slit portion 13 with the threaded part of the knob bolt 10, screw the knob bolt 10, and tighten. Support shaft 3
The roll guard 11 was fixed to the machine for use.

<Problem to be solved by the invention> However, the roll guard 11 as the kind of stopper rotates the knob bolt 1 as the roll 1 rotates.
0 is loosened, and the roll guard 11 is attached to the knob bolt 10.
Otherwise, the roll guard 11 may shift along the slit 13 and be displaced in the longitudinal direction, causing the center hole 12 to move and the knob bolt 1
There was a drawback that it could deviate from the 0 head.

In addition, maintenance and management of the knob bolt 10 as well as machining including female thread machining are required, which has the disadvantage of increasing costs.

Furthermore, if the label roll 1 is of a single size, it is suitable for mass production, but if multiple types of label rolls, such as wide and narrow ones, are used, the corresponding spindles 3 must be replaced and arranged, making management operations complicated. There were also some difficulties.

The purpose of this invention is to solve the problems of the sheet roll guard based on the above-mentioned conventional technology as a technical problem, regardless of whether the spindle rotates or not, and to correspond to each size of the sheet roll width. An excellent sheet roll guard structure that is easy to set, securely restrains the sheet roll in the axial direction of the spindle, and allows one-touch loading and unloading of the sheet roll, benefiting the field of label technology application in the distribution industry. We aim to provide the following.

<Means/effects for solving the problem> In accordance with the above-mentioned purpose, the structure of this invention, which is summarized in the scope of the above-mentioned utility model registration claim, is to solve the above-mentioned problem. Insert the core tube into the cantilever-type support shaft of the device from the free end, and then insert the core cylinder into the size-specific ring-shaped groove formed at a predetermined portion of the support shaft from the edge of the plate-shaped sheet roll guard. Push in along the side of the sheet roll with the guide slit formed facing inward facing, and engage by sliding the slit notch formed in the longitudinal direction of the guard body, which communicates with the guide slit, into the ring-shaped groove with a diameter smaller than the width of the slit notch. The lower end of the sheet roll guard is brought into contact with the bottom inner surface of the equipment frame to prevent it from rotating, allowing the sheet roll to rotate without falling off the spindle, regardless of its size. It was created by taking technical measures to ensure that it was carried out in the same way.

<Example> Next, an example of this invention will be described based on the drawings from FIG. 4 onwards. In addition, the same reference numerals will be used to describe the same parts as those shown in FIGS. 1 to 3.

In the embodiment shown in FIGS. 4 to 6, reference numeral 1 denotes a label roll, which is attached to a label printer 14 in a supermarket back yard, etc., as in the conventional embodiment described above, and its width size is standardized and has a predetermined width. Labels (not shown) are attached in advance to cylindrical core tubes 2 of different sizes at set intervals on mounts to be set on a support shaft 3' that projects horizontally from the set portion of the frame 8 in a cantilever manner. The attached tape-like sheet 4 is continuously wound to form a unit.

A presser flange 9 is fixed to the frame 8 side of the support shaft 3' through appropriate means, and the support shaft 3' has a large diameter and a small diameter in the axial direction, as shown in FIG. The support shafts 3″, 3 are arranged in two stages, and the seat 4
Four ring-shaped grooves 15, 15, 15 of the same diameter with lengths l ₁ , l ₂ , l ₃ , l ₄ are formed from the flange 9 at the set position corresponding to the width position according to the label width standard. are formed to have the same diameter and a smaller diameter than the support shafts 3'', 3.

Reference numeral 11' denotes a long plate-shaped sheet roll guard which forms the gist of this invention, and its both ends are formed into a rounded part 16, and the edge of one side at the central position is inserted into the support shaft 3'. A guide slit 17 having a possible T-shape when viewed from the front is bored in an inward right angle direction,
A slit notch 18 is integrally connected to the guide slit 17 and is formed to have equal length on both sides in the longitudinal direction of the sheet roll guard 11' and has a width slightly smaller than the diameter of each ring-shaped groove 15 of the support shaft 3'. It is drilled in.

The corner portions 19 at both ends of the slit notch 18 are formed at right angles to reduce friction with the ring-shaped groove 15 with which the slit notch 18 engages.

Therefore, although the lengths from the outer end of one slit notch 18 to both radiused ends of the sheet roll guard 11' are different,
The center of the guide slit 17 is plane or line symmetrical.

A guide 5 is provided at the top of the support shaft 3' of the label printer 14, and a drive roller 6 is provided at the front of the guide 5, facing the printing machine 7, as in the prior art.

In the above-mentioned configuration, the label roll 1 of the set width size, which is pre-wound around the core tube 2, is set on the support shaft 3' with the sheet roll guard removed as shown in FIG. 5 by inserting the core tube 2 from the free end side. Then, the sheet roll guard 11' is pushed into the ring-shaped groove 15 on the outside corresponding to the sheet roll 1 with the guide slit 17 at its center facing from the side of the support shaft 3', and then pushed into the ring-shaped groove 15. Guide slit 17
When the slit notch 18 communicating with the roll guard 11' is slid into engagement with the slit notch 18 and released, the far end of the rounded portion 16 naturally descends due to the eccentric weight caused by the misalignment between the center of the support shaft 3' and the roll guard 11', as shown in FIG. As shown, it contacts the bottom inner surface 8' of the frame 8 in a point-contact manner to maintain the inclined posture.

Then, the leading edge of the sheet 4 is passed through the guide 5, the printing machine 7, and the drive roller 6 in a predetermined manner to complete the setting, and the label printer 14 is put into operation.

Therefore, when the printer 14 is operated, the drive roller 6 rotates in a predetermined manner, prints predetermined pricing information on a label (not shown) on the sheet 4, and feeds out the sheet 4 at predetermined intermittent timing to move the label roll 1 in the direction of the arrow. It rotates.

During this time, the outer surface of the label roll 1 is in sliding contact with the sheet roll guard 11', but as shown in FIG. 4, the lower end of the sheet roll guard 11' is in point contact with the lower bottom inner surface 8' of the frame 8. Because of this, it does not rotate and remains stationary.

Therefore, the sheet roll guard 11' does not rotate, and its slit notch 18 is engaged with the ring-shaped groove 15 engaged with the support shaft 3', and the sheet roll guard 11' is rotated laterally.
And, it will not come off downward, and as long as that happens, the label roll 1 will not come off either.

If the core cylinder 2 is to be removed after all the sheets 4 have been unrolled, the sheet roll guard 11' may simply be raised relative to the support shaft 3' and pulled out laterally.

Further, in the embodiment shown in FIG. 7, a weight 2 such as a piece of iron is attached to one end of the sheet roll guard 11'' in contrast to the above-mentioned embodiment.
This is an embodiment in which the sheet roll guard is attached with an adhesive or the like, so that the sheet roll guard can appear in a natural hanging state when installed.

Further, the embodiment shown in FIG. 8 is an embodiment in which two ring-shaped grooves 15, 15 are formed in the support shaft 3, and collars 21, 21' are screwed to the large-diameter core cylinder. Of course, it is also applicable to.

<Other Embodiments> It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments. For example, the lengths from the guide slit to both ends of the roll guard may be different, or Various configurations can be adopted, such as increasing the area to increase weight, or making the shape of the slit notch and guide slit bent, and the spindle is not limited to a fixed type, but may also be a rotating type. Also, the sheet roll can be applied whether it is a printed sheet roll, a blank sheet roll, or a sheet roll with a release liner.

<Effects of the invention> According to this invention, the sheet roll guard used as a sheet roll holder for label printers, receipt issuing machines, etc., which are basically used in distribution departments such as supermarkets, has a completely simple structure. In addition to this, the engaging part of the support shaft also has a structure that does not require screws, etc., and has the excellent effects of simply having a simple structure, requiring less man-hours, being easy to manufacture, and being able to do it at low cost. Therefore, it is possible to easily attach and detach the support shaft with a single touch, and the excellent effect that setting and resetting to a device such as a printer can be performed reliably and quickly is achieved.

Moreover, once installed, it will never come off unexpectedly, so it is highly reliable and has good serviceability.

A guide slit for inserting the support shaft into a predetermined portion of the flat sheet roll guard opens at the edge of the sheet roll guard, and a longitudinal length of the sheet roll guard engages with a ring-shaped groove at the end of the support shaft. Since the guide slit is provided so as to communicate with the slit notch in the direction, the guide slit is exposed to the ring-shaped groove of the support shaft and the exterior is loosely inserted from the side.
Then, simply by slidingly engaging the slit notch in the ring-shaped groove, the excellent effect of being able to set the roll guard with one touch is achieved.

Furthermore, after setting, one sheet roll notch engages with the support shaft, so the center of gravity is offset and the roll guard is in a suspended state, which has the effect of preventing it from rotating along with the roll due to its own weight.

Therefore, it is flexible enough to be applied whether the support shaft is fixed or rotary.

In addition, by drilling a guide slit in the sheet roll guard that connects to the internal slit notch from its edge, it can be easily engaged with the ring-shaped groove at any part of the support shaft, making it possible to easily adjust the size of the sheet roll. An excellent effect can be obtained in that the sheet roll guard set has elasticity against the load.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of setting a sheet roll in a printer, Fig. 2 is a sectional side view of installing a sheet roll guard on a sheet roll based on the conventional technology, and Fig. 3
The figure is a perspective view of the same part, Figure 4 and the following are explanatory views of the embodiment of this invention, Figure 4 is a side view of the device set,
Figure 5 is a side view of the support shaft for the sheet roll guard, Figure 6 is a perspective view of the sheet roll guard, and Figure 7 is a side view of the support shaft for the sheet roll guard.
The figure is a perspective view of another embodiment equivalent to FIG. 6, and FIG. 8 is a partially sectional side view of another embodiment equivalent to FIG. 5. 1... Sheet (label) roll, 2... Core cylinder,
3'... Support shaft, 15... Ring-shaped groove, 11', 1
1″... Sheet roll guard, 8, 8′... Frame, 18... Slit notch, 17... Guide slit, 20... Weight.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a sheet roll guard structure that is removably set on a spindle into which a core tube for winding a sheet roll is inserted, an opening is formed on the side edge of the sheet roll guard and a A guide slit slightly wider than the diameter of the ring-shaped groove formed at a predetermined portion and a slit notch slightly wider than the ring-shaped groove are provided in the longitudinal direction of the sheet roll guard, and the slit notch and the guide slit communicate with each other. A sheet roll guard structure comprising a rectangular plate, characterized in that the lengths from the slit notch to both ends of the sheet roll guard are different. (2) The sheet roll guard according to claim 1, wherein the length from the center to the end of the sheet roll guard is longer than the vertical distance between the support shaft and the top surface of the bottom of the frame. structure. (3) Utility model registration claim No. (1) characterized in that the ring-shaped grooves are formed in multiple stages in the axial direction of the support shaft, and the pitches between the ring-shaped grooves are formed to be longer and shorter than the base. Seat roll guard structure as described in section. (4) The sheet roll guard structure according to claim (1) of the utility model registration, characterized in that a weight is provided on one side of the slit notch.