JPH0221258Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a binding adjustment device on the shoulder cover side of a sheet binder.

[Conventional technology]

Conventionally, there has been a paper binder that consists of a shoulder cover frame with a U-shaped cross section that can be bent freely from the center of the width, and a number of binding tabs installed inside the frame. Inserting and removing the leaves is done by pressing the opening actuating plates located at the upper and lower ends of the binder metal fittings, where there are many binding tabs, and then pulling the sheets open from side to side. The leaf engagement hole can be pulled out and inserted from either the left or right side of the pawl rod, and once the paper leaf has been inserted, the paper leaf can be pressed from the left and right sides to join together. Because of this, it is difficult to bind a large amount of paper sheets, and since there are a large number of binding levers, it requires a great deal of effort to insert and remove paper sheets. In addition, as in the present invention, opening and closing of the shoulder cover frame and adjusting the stacking width of paper sheets can be performed reliably and smoothly by engaging and disengaging the locking rod in the shoulder cover frame with the rib plate. There was no such structure.

[Problem that the invention attempts to solve]

The present invention makes it possible to reliably and smoothly engage and disengage the locking rod in the shoulder cover frame and the rib plate, so that the shoulder cover frame can be opened and closed and the width of paper sheets can be adjusted well. It is an object of the present invention to provide a method that allows a large amount of paper sheets to be filed, which is unprecedented in the past, and can be carried out suitably.

[Means for solving problems]

Therefore, in the present invention, a locking rod having a plurality of locking pieces each having an engaging protrusion at the tip is installed in the frame on one side from the bent edge so as to be movable only in the longitudinal direction. Each rib plate protruding inside the frame is formed with an inclined rib along the inner hole and both holes to which the engaging protrusion of the locking piece engages, and when the locking rod is pushed in, each locking The piece is installed so that it is spaced apart from the rib plate and can be engaged by the elasticity of the spring.

[Effect]

With this configuration, the locking rod can be easily pushed from the outside to release the engagement between the locking piece and the rib plate and open the shoulder cover, or the elastic force of the spring can automatically move back and engage the rib plate. It is also possible to adjust the degree of opening by changing the engagement position between the engagement piece and the rib plate, so that even if the amount of sheets to be bound is large, the amount of sheets to be bound can be adjusted. The binding width can be adjusted to match.

〔Example〕

Next, the embodiment shown in the drawings will be described.

FIG. 2 shows a perspective view of the entire paper binder,
A thin bent edge 2 is formed in the widthwise center of the shoulder side of the shoulder cover frame A having a U-shaped cross section.
Both ends of the transparent sheet 9, which can be joined to the outer surfaces of the shoulder surfaces of both frame parts a1 and a2 divided by sandwiching the frame parts a
1 and a2 are adhered to the outer surfaces of the transparent sheet 9 with an adhesive, and a heading board 10 for writing headings is installed inside the transparent sheet 9 so that it can be inserted, and the extending sides of both frame parts a1 and a2 has a thin bent edge 11a, 1
Extended surfaces 12a and 12b that can be bent are formed extending from 1b, and one end of the front cover B is placed on the inside of one of the extended surfaces 12a, and one end of the back cover C is placed on the inside of the other extended surface 12b. 4 in a row from between both covers B and C to the inside of shoulder cover frame A.
It is installed and configured so that hole-shaped paper sheets D can be bound.

Plate bodies 13a and 13b are fixed to the corresponding inner surfaces of both frame parts a1 and a2, respectively, and the bases of the two inner claw rods 1a and 1a are attached to the plate body 13a, and the outer two
The bases of the book claw rods 1b, 1b are respectively fixed to the plate body 13b, and with the shoulder cover frame A closed in a U-shape, the tips of the book claw rods 1a, 1a, which are curved in an arc, are attached to the plate body 13b.
The tips of the claw rods 1b, 1b are installed in the holes 14b, 14b of the plate body 13a so that they can be fitted into the holes 14b, 14b of the plate body 13a. Rib plates 15a, 15b corresponding to each other are provided at one end side of both frame portions a1, a2.
A rib plate 16 is formed on the other end side of the frame part a2, and an opening 17 is formed in a part of the other end side of the frame part a1 corresponding to the rib plate 16. Six rib plates 18 are integrally formed inwardly at appropriate intervals, and a locking rod 4 having a cross-shaped cross section is fitted into each rib plate 18 so as to be movable only in the axial direction. Each locking rod 3 that protrudes laterally from three locations on the locking rod 4 has an engaging protrusion 3a on the distal end side and a recess 3b on the inner side thereof, and one end side of the locking rod 4 is formed with a knob 4a facing inward of the opening 17, and a tip 4b of the locking rod 4 that comes into contact with the inner surface of the rib plate 15a at the end when the locking rod 4 is pushed all the way. It fits into a rib plate 18 on the inner side of one end, and a compression spring type spring 8 is fitted between the rib plate 18 and the base of the locking rod 4 at the end.

Further, six rib plates 5 corresponding to each rib plate 18 in the frame part a1 are formed inside the other frame part a2, and three rib plates 5 correspond to the three locking pieces 3, respectively. The two rib plates 5 are formed with holes 6 and 7 which are different in direction and position and into which the engaging protrusion 3a of the locking piece 3 fits, and both ribs on both end sides having both holes 6 and 7 are formed. On the edge side of the plate 5 near the frame portion a1, inclined ribs 5a which are inclined along the hole 7 are respectively formed in a raised manner.

Therefore, as shown in FIGS. 1 to 6, when the shoulder cover frame A is U-shaped and closed with sheets D bound, each locking piece 3 is pressed by the spring 8. The engaging protrusion 3a engages with the hole 6 of each rib plate 5, and the tips of both claw rods 1a, 1a are on the plate body 13b side, and the tips of both claw rods 1b, 1b are on the plate body 13a side. Once it is fitted in, it can be filed.

If the shoulder cover frame A is folded from the folded edge 2 to a half-open state as shown in FIG. 11, a large amount of paper sheets D can be filed. While the portion 3a engages with the hole 7 of each rib plate 5, the tips of each are separated from the plate bodies 13a, 13b as shown by imaginary lines in FIG. will be wrapped in the horizontal direction, and a large number of sheets D will be bound so that they will not come loose.

In that case, the engagement protrusion 3a of the locking piece 3 is connected to the rib plate 5.
When fitting into the hole 7, the engaging protrusion 3a
This means that they can be fitted smoothly while sliding while being guided by a.

In addition, when binding or removing the group D of sheets, push the knob 4a inward from the outside, tension the spring 8, move the locking rod 4 inward, and release the locking piece 3. Remove it from rib 5, and then remove it from the first
When it is bent from the bent edge 2 and opened wide as shown in Fig. 1, the claw rods 1a and 1 are opened as shown by the solid line in Fig. 14.
a and the pawl rods 1b, 1b are separated, and the paper sheet D group that fits on the pawl rods 1a, 1a side is moved to the pawl rods 1b, 1.
It can be removed as it is without any resistance in the state that it has already come out from b, and it can be bound by fitting only into the claw rods 1a, 1a.

When attaching or removing the heading plate 10, as shown in FIG. 13, fold the shoulder cover frame A from the folded edge 2 to open it, and the transparent sheet plate 9 will expand outward and move inward. This creates a space in which the heading board 10 can be easily taken in and taken out.

The shoulder cover frame A is shaped so that it can be bent along the folding line 2, and a frame body equipped with claw rods 1a, 1b, locking rods 4, rib plates 5, etc. is attached to the inside of the shoulder cover frame. You can also.

[Effect of idea]

In this manner, the present invention allows the locking piece 3 to be detached from the rib plate 5 by simply pushing the locking rod 4 in an easy-to-operate manner, and also to be engaged by the elastic force of the spring 8. The shoulder cover frame A can be easily opened and closed by using the holder, and when the amount of binding increases and the shoulder cover frame A is left in a half-open state, the engaging protrusion 3a of the locking piece 3 slides onto the inclined rib 5a. In this way, it can be engaged with the hole 7 reliably and well, and the file condition can be maintained well, and the binding adjustment and opening/closing can be performed reliably and easily and suitably.

[Brief explanation of the drawing]

Figure 1 shows a part of the main part, Figure 2 is a perspective view of the entire paper binder, Figures 3, 4 and 5.
The figures show views taken along lines -, -, and - in Fig. 1, respectively; Fig. 6 shows a view taken along - lines in Fig. 3; and Fig. 7 shows views taken along - lines in Fig. 4.
8 and 9 show exploded views of parts of FIGS. 4 and 7, respectively;
Figure 0 is a sectional view of a part of the shoulder cover frame, Figures 11 and 12 are illustrations of the operation of Figure 4, respectively.
FIG. 13 is an explanatory diagram of the operation of FIG. 10, and FIG. 14 is an explanatory diagram of the operation of the pawl rod. A...shoulder cover frame, 1a, 1b...nail rod, 2...
Bent edge, a1, a2...frame portion, 3a...engaging protrusion, 4...locking rod, 5...rib plate, 6,7...
Hole, 5a... inclined rib, 8... spring.

Claims (1)

[Scope of utility model registration request] A shoulder cover frame A having a U-shaped cross section is freely bendable from the center of the width, and a plurality of tabs 1a, 1b are provided inside the shoulder cover frame A for binding.
In the paper binder constructed by constructing a paper leaf binder, the frame portion a1 on one side from the bent edge 2 has an engaging protrusion 3a at its tip, and a recess 3b deepened inwardly in two steps.
A locking rod 4 having a plurality of locking pieces 3 formed thereon is constructed so as to be movable only in the longitudinal direction, and each rib plate 5 protruding into the frame portion a2 on the other side has one of the locking pieces 3. Slanted ribs 5a are formed along both holes 6, 7 and the inner hole 7 to which the engaging protrusion 3a engages, and when the locking rod 4 is pushed in, each locking piece 3 is separated from the rib plate 5. A shoulder cover side binding adjustment device configured so that it can be engaged by the elasticity of a spring 8.