JPS58142895A - Bookbinding device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bookbinding device, and the present invention relates to a bookbinding device that sets the #genuine article at 41% without depending on the straining strength of the bound article. The present invention relates to a bookbinding device capable of binding books.

As a conventional bookbinding device, for example, there is a method that places a K11 original on a bookrest located at a predetermined setting position and pastes a cover or adhesive tape from the back of the bound book to the cover and spine K. Figure 1 H), #)
1 shows this bookbinding device, in which a bookrest 2 on which a booklet is placed is supported by a spring 3, and a talent 4 for raising and lowering a booklet 1 on the bookrest 2 is inserted through an opening 5a formed in a guide plate 5. It is provided so as to sandwich the bound product 1. Thermochie 1 mentioned above is placed below the guide 1i5.
Or adhesive tape 76 (hereinafter referred to as single K “tape”)
A front sill 8a and a rear 7 and 8b that move in the horizontal direction are provided below the tape guide 70.

In the above configuration, the guide plate 5 is
11 Insert the book 1 and place the bound book 1 on the book rest 2, and clamp the book 1 from both sides by the clan 14. The clamped workpiece 1 is raised above the level where the tape 6 is located by the upward movement of the clan 14, and
6 is inserted and supported by the cheese guide 7. Following the insertion and support of the chip 16, the front press 8a moves horizontally, and the chip 16 is inserted and supported.
6, the clamp 4 descends, and the bound workpiece 1 is pressed by the chie 76 on the front press 8a, and the chie 16 adheres to the back of the bound workpiece 1 (when the tape 6 is a thermochie 7, the front press 7 Res 81 and Rear 7 Res 8bv
Heat fusion is carried out by using heaters, and when adhesive tape is used, it is bonded simply by pressing the presses 8m and 8b.

same as below).

Next, after the front press 81 returns to its original position, the binding object 1 is lowered due to the lower obstruction of the crank 14, and the binding object 1 is lowered.
When the bookrest 2 is pressed and balanced with the elastic force 30, the crank 14 stops. IIF, the front press 8m and the rear press 8b press the Qi 76 located from the back of the one-way binding book L to the front cover and spine to make it IIkyII, and paste the Qi 16 1gn-*
Complete.

However, in conventional bookbinding devices, the thickness of the bound book 1,
Alternatively, depending on the material (because the bookrest 2 is supported by the spring 3 which has a single spring constant regardless of the stiffness, if the spring constant is made too large, the bound book 1 will be thin and weak). Since the leaf spring 3 cannot be displaced by a predetermined amount, there is a possibility that the product 1 cannot be positioned at the set position.

The present invention has been made in view of the above, and it is possible to position a predetermined strainer at a set position for a bound product based on the thickness or material of the bound product, regardless of the strength of the strainer. A spring having a spring constant that displaces a predetermined amount when a bound product having strength presses the bookrest supports the bookrest WWi, and another spring supports the bookrest when the bookrest is displaced by the predetermined amount or more. The bookbinding apparatus according to the present invention will be described in detail below.

1M), (c9 shows one embodiment of the present invention, only the main parts are shown; other parts common to FIGS. #! It is always supported by the spring 3aK of the bracket 11, and is guided into the dormitory during vertical movement by the guide member 2aK extending in the slit guide lla of the bracket 11. The first spring 31 has a relatively small spring constant so that it is displaced by a predetermined amount when the booklet 1, which is thin and has weak stiffness, presses the bookrest 2. ! In addition, a second spring 3b is provided in contact with the first spring 38. The second spring 3b is always at a predetermined distance t't- from the bookrest 2, and when the thick and stiff bound book 1 presses the bookrest 2 and displaces the bookrest 2 by a predetermined amount or more, the bookrest 2 The bookrest 2 is elastically supported by contact with the bookrest 2.
To prevent excessive lowering of y, a6 has a large spring constant (like the spring constant of spring 3a of #II).

In the above configuration, when the bookrest 2 is pressed down by the thin and weak bound book 1, the bookrest 2 is elastically supported by the first spring 3m by a predetermined amount i based on the spring constant of the first spring 3m. Place the bookrest 2 on the bookrest 2, which is thick and stiff.
is elastically supported by the first and second springs 3a and 3bK, so the predetermined amount J
: The balance is maintained by displacing the body by a slightly large amount.

Therefore, the product 1 can be positioned at a set position without depending on the strength of the strainer. After doing this for 5K, the IK tape 61 for binding can be applied accurately.

As explained above, according to the bookbinding apparatus according to the present invention, the bookless F is always supported by a spring having a spring constant that is displaced by a predetermined amount when a bound workpiece having a predetermined stiffness presses the bookrest. Providing another spring that supports the bookrest to cause the bookrest to wrinkle when the bookrest is displaced by more than the predetermined amount;
Since the spring constant of the spring that always supports the material is increased, it is possible to position the product at the foot position without depending on the thickness or material of the material. can.

[Brief explanation of the drawing]

11th W ((), (J indicates a conventional bookbinding device, B)
is a diagonal horizontal view, (b) is a @ side view, Figure 2 ((), (b)
1 shows a main part of an actual example of the present invention, B) is a diagonal lateral view, and (B) is an object view. Explanation of the code l・°°° Real product 2... Bookrest 21
...Guide members 3a, 3b...Springs with different spring constants 4...Clan 1 5...Guide 5a...Guide plate opening 6...Tape 7...Tape guide 8a, 8b...front, rear 7less 11...bracket) 11m...guide slit Patent applicant Fuji Xerox Co., Ltd.

Claims (1)

[Claims] A bookbinding device that attaches a bookbinding tape from the spine to the cover and spine of a bound book placed on a bookrest that is supported in a flexible manner, the bookrest is always elastically supported, and a predetermined Noto. a first spring having a first spring constant that is displaced by a first predetermined amount when a first bound product having stiffness presses the bookrest; and a first spring having a first spring constant so as not to elastically support the bookrest at all times. and has a second spring constant that is greater than the first spring constant, and is stiffer by a predetermined value than the first worn binding piece, which presses the bookrest. The bookbinding device is characterized in that it includes a second spring that elastically supports the Mukuro Bookless F by contraction of the first spring.