JP4686071B2 - Book cover protection cover wearing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device for simply mounting a protective cover of a plastic sheet on the cover of a book.
[0002]
[Prior art]
There are various kinds of books with and without a protective cover on the front cover, but a protective cover is often attached on top of it. Protective covers for libraries, rental head offices, etc. use sheets with a transparent or translucent plastic sheet or a slight printed pattern to protect books from contamination damage or to indicate their affiliation.
[0003]
Conventionally, such a protective cover for a plastic sheet has been made by hand as with a protective cover for paper. However, since many recent books have glossy paper with a smooth cover surface and high adhesion to the plastic sheet, if you do it by hand, bubbles will not come out between the cover and the protective cover, Also, the protective cover often has a ridge that is said to be swollen, and considerable skill is required to achieve a beautiful finish.
[0004]
A large number of papers and plastic sheets are laminated, including, for example, the method and apparatus described in Japanese Patent Application Laid-Open No. 4-122624.
[0005]
[Problems to be solved by the invention]
As a recent trend, the demand for attaching a plastic sheet protective cover to the cover of a book has increased considerably, but relied on manual labor that required skill because there was no appropriate equipment or equipment. In particular, in places such as libraries and rental headquarters where protective covers for plastic sheets are handled on a considerable scale, there has been a demand for equipment that can be easily attached.
[0006]
The present invention has been made to solve the above-described problems, and provides a device that can easily attach a protective cover of a plastic sheet to a book without bubbles, folds, or wrinkles.
[0007]
[Means for Solving the Problems]
A book cover protective cover mounting device to which the present invention is applied to achieve the above object, includes a pair of nip rolls arranged in parallel and a bearing that individually supports the nip rolls, and supports one of the pair of nip rolls . A movable bearing that moves on a guide that guides in a parallel direction with respect to a fixed bearing that supports the other of the nip rolls while maintaining parallel parallel, a distance adjusting mechanism that is coupled to the movable bearing of one of the nip rolls, Biasing means for applying force to the nip roll in the approaching direction, means for supplying a protective cover sheet to the upper surface of a pair of nip rolls adjusted to be slightly narrower than the thickness of the book by the spacing adjustment mechanism, and the sheet At the front end portion of the protective cover sheet from the supply means, there is a plate for tensioning the sheet over almost the entire width.
[0008]
The plate is preferably a weight plate.
[0009]
In order to put a protective cover on the cover of a book using this book cover protective cover mounting device, first, one of the nip rolls is moved by the distance adjusting mechanism so that the distance between the pair of nip rolls is slightly narrower than the thickness of the book. Adjust to. For example, a weight plate is attached to the leading end portion of the sheet from the sheet supply means, and the sheet is further suspended from the roll by the weight plate so as to straddle the nip roll of the pair. When a book is pushed through a sheet straddling a pair of nip rolls maintaining parallel parallel, the nip rolls are rotated by the frictional force. The gap between the pair of nip rolls is about to be maintained by the biasing means, but the bearing is retracted on the guide against the pushing force of the book, and both sides of the book are sequentially pressed in parallel by the nip rolls from the top of the sheet. . The sheet is tensioned by a weight plate, and the surface of the book and the sheet are in direct contact with each other in sequence, and the air between them is pushed out, so that no wrinkles, creases, bubbles, etc. remain.
[0010]
An elastic body that gives tension to the sheet may be connected to the plate attached to the tip of the protective cover sheet.
[0011]
The protective cover sheet used for the book cover protective cover mounting device preferably has an adhesive on one side.
[0012]
The book may have a Yatoi board slightly larger than the book in advance.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
FIG. 1 is a side view of an embodiment of a book cover protective cover mounting device to which the present invention is applied. The protective cover mounting device of this example is assembled to the main body frame 1 and mounts the protective cover of the plastic sheet 3 on the book 7.
[0015]
A nip roll 11 is attached to a fixed bearing 13 fixed to the main body frame 1. A nip roll 12 is attached to the movable bearing 14. Nip rolls 11 and 12 are both made of soft rubber. The fixed bearing 13 supports the shaft of the nip roll 11 so as to be rotatable. The movable bearing 14 has a guide elongated hole 17 engaged with a guide shaft 18 attached to the main body frame 1, is movable with respect to the main body frame 1, and supports the nip roll 12. Threaded rod 21 which is screwed to the female screw 20 attached to the movable bearing 14, the tip thereof, hitting the rotatable fixed bearing 13. A handle knob 22 is attached to the screw rod 21. A tension spring 23 is stretched between the fixed bearing 13 and the movable bearing 14. Therefore, the movable bearing 14 is drawn toward the fixed bearing 13 along the guide long hole 17 with which the guide shaft 18 is engaged. Further, the movable bearing 14 is stopped by the tip of the screw rod 21 hitting the fixed bearing 13.
[0016]
Further, a roll 5 of a plastic sheet 3 serving as a protective cover is axially supported on the main body frame 1. The plastic sheet 3 is obtained by applying a pressure-sensitive adhesive on a base sheet, and a release paper 4 for releasing is stuck on the pressure-sensitive adhesive surface in a roll-wound state. Further, a metal plate having a width approximately equal to that of the plastic sheet 3 is prepared as the weight plate 24, and further a peeling guide bar 25 is prepared. A guide 27 is provided on the main body frame 1.
[0017]
In order to attach a protective cover to the cover of a book using the book cover protective cover attachment device, the following is performed.
[0018]
First, the handle knob 22 is turned to move the screw rod 21 back and forth, and the distance between the nip roll 11 and the nip roll 12 is adjusted slightly narrower than the thickness of the book 7. Next, the leading end of the plastic sheet 3 is pulled out from the roll 5 to peel off the release paper 4, and drawn with the guide bar 25 interposed therebetween. A weight plate 24 is affixed to the adhesive surface at the leading end of the sheet 3 and is further pulled out and suspended by the weight plate 24 across the nip rolls 11 and 12 (see the chain line). Since the bearing 13 on the roll 5 side is fixed to the main body frame 1, the supply angle of the plastic sheet 3 to the nip roll 11 supported by the bearing 13 is constant. When the sheet 3 sufficient to cover the book 7 is pulled out, the book 7 is put on the guide 27. As shown in FIG. 3, along the guide 27, the book 7 is pushed from the back cover through the sheet 3 between the nip roll 11 and the nip roll 12. Although the gap between the nip roll 11 and the nip roll 12 is narrower than the thickness of the book 7, the nip roll 11 and the nip roll 12 are connected by a spring 23. The sheet 12 is rotated while being stretched, and the adhesive surface of the sheet 3 is pressed against the cover of the book 7. When the sheet 3 is pressure-bonded to the entire surface of the cover, the sheet 3 is cut to that size, and the protective cover mounting operation is completed.
[0019]
In the above embodiment, the plastic sheet is provided with an adhesive. However, if the cover of the book has a smooth surface, a plastic sheet without an adhesive can be sufficiently attached due to the adhesion to the cover.
[0020]
As shown in FIG. 2, instead of the weight plate 24, a plastic plate connected by an elastic body 26 such as a spring that pulls the plastic sheet 3 downward may be used. The bearings 13 and 14 of each nip roll may be movable bearings that move on the guide.
[0021]
As shown in FIG. 4, the book 7 may be temporarily sandwiched with a Yatoi board 8 made of a resin such as polytetrafluoroethylene that is easily peeled off from the adhesive and slightly thicker than the book 7. Good. After the sheet 3 is pressure-bonded to the cover by each of the nip rolls 11 and 12, the yatoy plate 8 is removed. Thereby, it can prevent that the part which protrudes from the edge of the cover of the sheet | seat 3 adheres in the middle of crimping | compression-bonding.
[0022]
Even if the book 7 is as thick as the spine, the gap between the cover and the nip roll can be kept constant by sandwiching the wedge-shaped Yatoi plate 8 having an appropriate thickness. 3 can be crimped.
[0023]
【The invention's effect】
As described above, the protective cover applied to the cover of the book using the book cover protective cover mounting device to which the present invention is applied does not leave bubbles between the cover and the protective cover. No creases and beautiful finish. The work can be done easily without special training, and the construction of the equipment is simple and inexpensive. This is especially suitable for places where a large number of books, such as libraries and rental head offices, need to be fitted with plastic sheet protection covers.
[Brief description of the drawings]
FIG. 1 is a side view of an embodiment of a book cover protection cover mounting device to which the present invention is applied.
FIG. 2 is a side view of an essential part of another embodiment of a book cover protection cover mounting device to which the present invention is applied.
FIG. 3 is a perspective view showing a usage state of the book cover protection cover mounting device of the embodiment.
FIG. 4 is a perspective view showing another use state of the book cover protection cover mounting device of the embodiment.
[Explanation of symbols]
1 is a body frame, 3 is a plastic sheet, 4 is release paper, 5 is a roll, 7 is a book, 8 is a Yatoi plate, 11 and 12 are nip rolls, 13 is a fixed bearing, 14 is a movable bearing, 17 is a guide slot, 18 is a guide shaft, 20 is a female screw, 21 is a screw rod, 22 is a handle knob, 23 is a tension spring, 24 is a weight plate, 25 is a peeling guide bar, 26 is an elastic body, and 27 is a guide.

Claims (4)

A pair of nip rolls arranged in parallel,
Among the bearings that individually support the nip rolls, one of the pair of nip rolls is supported. bearing,
An interval adjusting mechanism connected to the movable bearing of one nip roll of the pair;
A biasing means for applying a force to the pair of nip rolls in the approaching direction;
A means for supplying a protective cover sheet to the upper surface of a pair of nip rolls adjusted to be slightly narrower than the thickness of the book by the spacing adjustment mechanism, and a leading end of the protective cover sheet from the sheet supply means, A book cover protective cover mounting device comprising a plate for tensioning the sheet over the entire width.     2. The book cover protective cover mounting device according to claim 1, wherein the plate is a weight plate.     The book cover protective cover mounting device according to claim 1, wherein the plate is connected to an elastic body that applies the tension.     2. The book cover protective cover mounting device according to claim 1, wherein the protective cover sheet is a sheet having an adhesive on one side.

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