JPH036445Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a seaming device, and more specifically, it is used when securing one end of a booklet-like object such as a calendar by winding it with a fastener. This invention relates to improvements to seaming devices used in

[Prior Art] In general, a booklet-like calendar is produced by collating a plurality of printed calendar sheets, engaging a fastener at one end using a seaming device, and tightening and fixing the sheets.

By the way, as shown in FIG. 3, the conventional seaming device first places the calendar sheet 2 to which the fastener 1 is attached at a predetermined position on the movable base plate 4 which is arranged opposite to the fixed base plate 3. (Fig. 3a), presses the hook portion 1a of the fastener 1 with the pressure plate 5 descending from above on the movable base plate 4 (Fig. 3b), and then supports it on both base plates 3 and 4. The neck portion 1b of the fastener 1 to be pressed is pressed with a push knife 6 that descends in synchronization with the pressure plate 5 to bend it into a V-shape (Fig. 3c).
Furthermore, in this state, the folding knife 6 is raised, the movable base plate 4 is brought closer to the fixed base plate 3, and the V-shaped bent portion of the fastener 1 is pressed, thereby fixing the fastener to the calendar sheet by winding. (Figure 3d).

[Problem that the invention attempts to solve]

However, in this type of seaming device, when the movable base plate presses the fastener that is bent into a V shape between the two base plates and tightens the seam, the fastener is pushed upward, that is, in the direction of the pushing knife. There was a problem that the seaming work could not be carried out reliably because the seam may move.

[Means for solving problems]

Therefore, in order to solve the above-mentioned problems, this invention has a pair of knife gate members disposed facing each other on both the fixed base plate and the movable base plate, and the distance formed between the knife gate members is reduced. The part is configured as an insertion part for a folding knife, and the bottom part of one of the knife gate members and the end of the movable base plate form a locking stepped part to prevent the movement of the fastener, thereby facilitating the tightening work of the fastener. The aim is to ensure that

[Effect]

The seaming device according to this invention uses a folding knife to
A part of the fastener bent into a shape is locked to a locking stepped part using the elasticity of the fastener itself to prevent its movement.

〔Example〕

Next, preferred embodiments of the seaming device according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, the seaming device according to the present invention includes a fixed base plate 10 and a movable base plate 12 configured to be able to move forward and backward in the horizontal direction with respect to the fixed base plate 10. A pair of knife gate members 16, 18, the spaced apart portion of which will be described later as an insertion portion 14 of a pushing knife, are arranged facing each other on the upper surfaces of both base plates 10, 12. A locking step portion 19 is formed between the movable base plate 12 and the movable base plate 12 .

Further, on the knife gate members 16, 18, there is a feed ruler member 22 for feeding fasteners 20 sequentially supplied by a fastener supply device (not shown) to predetermined positions on the knife gate members 16, 18. , a guide plate 24 configured to guide the calendar sheet to be wound around the fastener 20 and to be tiltable about the shaft 23 as a fulcrum is arranged opposite to the fastener 20 at one end thereof;
Further, near the end of the guide plate 24, there is provided a transfer means 26 for transferring the calendar paper sheets from the back side of the page of FIG. 1 to the front side.

On the other hand, above the knife gate member 16, there is a pressure member 28 that presses and engages the hook 20a of the fastener 20 that comes into contact with the end of the calendar sheet, and a pressure member 28 that is interlocked with the pressure member 28. A pushing knife 30 is provided for pushing the neck portion 20b of the fastener 20, which is attached to the calendar sheet, between the base plates 10 and 12 through the insertion portion 14 and bending it into a V-shape.

Note that the knife gate member 16 on the movable base plate 12
can be adjusted in the horizontal direction by operating an adjustment screw 32, and the knife gate member 18 on the fixed base plate 10 is configured to be able to move rightward at a predetermined timing.

Next, the operation of the seaming device according to the present invention configured as described above will be explained.

First, in synchronization with the feeding operation of the fasteners 20 from the fastener supply device, the calendar sheet A, whose one end is held by the transfer means 26, is transferred from the back side to the front side in FIG. 2a along the guide plate 24. and stops at a predetermined position (Fig. 2a). When the calendar sheet A stops at a predetermined position, the guide plate 24 tilts horizontally about the pivot 23 to slightly move the end a of the calendar sheet A upward, pushing the end a toward the tip of the knife 30. (Figure 2b).

Next, the feed ruler member 22 operates to move the fastener 20
is moved to the right, but at this time the push knife 30
moves downward to expose the end a of the calendar sheet A to the inside of the hook 20a of the fastener 20 (Fig. 2c),
The end portion a of the calendar sheet A is positioned in contact with the inside of the hook portion 20a (FIG. 2d). Note that in this state, the guide plate 24 returns to its original position.

Next, the pressure member 28 operates to press the hook 20a of the fastener 20 on the knife gate member 16, thereby fixing the fastener 20 to the end a of the calendar sheet A (FIG. 2e). , and further pressurizing member 2
8, the pushing knife 30 operates to push the neck 20b of the fastener 20 supported by the knife gate members 16, 18, together with the calendar sheet A, between the two base plates 10, 12 through the insertion part 14 (the first 2f diagram),
After bending into a V shape, it returns to its original position (2nd g
figure). In addition, in synchronization with this return operation, feed ruler 2
2 also returns to its original position.

In this way, the clamping tool 20 (and the calendar sheet A) bent into a V shape between the two base plates 10 and 12 is moved between the movable base plate 12 and the fixed base plate 1 by the pressing action of the movable base plate 12. (Fig. 2h). In addition, during this tightening operation, the end of the fastener 20 bent into a V-shape is connected to a locking step formed by the movable base plate 12 and the knife gate member 16, as is clear from FIG. 2g. 19 is avoided, and the seaming work is reliably accomplished.

When the tightening of the fastener 20 to the calendar sheet A is completed, the movable base plate 12 retreats to its original position, and in conjunction with this, one of the knife gate members 18 moves to the right and the transfer means 26 moves the calendar sheet A to the calendar sheet A. is carried out (Fig. 2i).

[Effect of idea]

As mentioned above, according to the tightening device of the present invention, when tightening a fastener attached to a calendar sheet and bent in a V shape, a part of the fastener is inserted into the knife gate. Since the locking is done at the stepped portion formed by the member and the movable base plate, movement of the fastener during seaming work can be prevented, and therefore the seaming work can be reliably accomplished. Its practical effects are extremely large.

Although the preferred embodiments of the seaming device according to the present invention have been described above, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention. Of course.

[Brief explanation of the drawing]

Fig. 1 is a side view of main parts showing a preferred embodiment of the seaming device according to the present invention, and Figs.
FIG. 3 is an explanatory view of the work of tightening a fastener using the conventional seaming device. 10...Fixed base plate, 12...Movable base plate, 14...
...insertion part, 16, 18...knife gate member, 2
2... Feeding ruler member, 23... Shaft, 24... Guide plate, 26... Transfer means, 29... Pressure member, 30
...A push knife.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A fixed base plate, a movable base plate disposed so as to be movable in the horizontal direction with respect to the fixed base plate, and a booklet disposed above the movable base plate. a pressure member that presses a hook of a fastener that is attached to an end of a shaped object;
In the tightening device for a fastener for a booklet-like object, which is provided with a pushing knife that pushes the neck of the fastener between the two base plates and bends it into a V shape in synchronization with the pressure member, A pair of knife gate members are arranged to face each other, and an insertion part for a push-in knife is formed in the spaced apart part of these knife gate members, and a locking step of the fastener is formed by the bottom of one of the knife gate members and the end of the movable base plate. 1. A tightening device for a fastener for a booklet-like object, characterized in that: (2) The tightening device for a fastener for a booklet-like article according to claim 1, which is constructed so that at least one of the knife gate members can be moved in the horizontal direction.