JP2898157B2 - Envelope opening device in envelope enclosing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an envelope opening device for opening an envelope when inserting an envelope in an envelope enclosing and sealing machine for inserting the envelope into the envelope.

[0002]

2. Description of the Related Art As shown in FIGS. 7 and 8, an envelope opening device 1 in a conventional envelope enclosing machine (not shown) is sent through an envelope passage 4 between tables 2 and 3. The envelope 5 is opened by the insert guide 7 while the flap 5A of the envelope 5 is pressed by the roller 6.

[0003] The insert guide 7 is swingable by a fulcrum 8A and is supported by a spring (not shown).
8 around the fulcrum 8A.
Is supported at the tip of an arm 9 that is swingably supported by a shaft 8B.

When the shaft 8B is rotated clockwise in FIG. 8 while the envelope 5 is sent from the envelope passage 4 and the flap 5A is fixed by the roller 6, the arm 9
Is swung from the position indicated by the two-dot chain line in FIG. 8 to the position indicated by the solid line.
Thereby, the tip of the insert guide 7 urged by the spring while the tip is in contact with the table 3 moves along the upper surface of the table 3, and further moves from the inner surface of the flap 5 </ b> A to the inner surface of the envelope 5. Along the envelope 5, the envelope 5 is opened.

[0005] As shown in FIG. 9, an enclosure 10 is pushed and inserted by an insert carriage 11 into the envelope 5 opened by the insert guide 7. The guide 7 is pushed up against the urging force of the spring to enter the envelope 5.

Here, in order to smoothly insert the enclosure 10 into the envelope 5, it is necessary to insert the insert guide 7 at a position as close as possible to both edges in the width direction of the envelope 5.

[0007]

Generally, the envelope 5 is
As shown in FIG.
B is folded back to form camas 5C, and this camas 5C is adhered to back 5E by glue 5D.
The end 5F on the flap 5A side of the cam 5C is not glued.

Therefore, in order to insert the enclosed object 10 smoothly into the envelope 5, the insert guide 7 should be moved at both edges in the width direction of the envelope 5 as much as possible so that the enclosed object 10 is not caught on the non-glued portion of the casket. Must be inserted at a position close to.

However, when inserting the insert guide 7 into the envelope 5 at both ends in the width direction of the envelope 5,
Insert guide 7 at end 5F where the glue is not applied
Has a problem that the envelope 4 causes a so-called jam.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and does not cause the insert guide to be caught on the unglueed end of the envelope camas.
An object of the present invention is to provide an envelope opening device that can be inserted into positions near both ends in the width direction of the envelope and can greatly open the envelope.

[0011]

SUMMARY OF THE INVENTION The present invention relates to an envelope
Flap holding means for holding the flap open;
An insert carriage that inserts an enclosure into an open envelope
To the door when to insert the enclosures inside the envelope, the encapsulating tube
In an envelope opening device of an envelope enclosing and sealing machine for opening an opening, each of the envelopes is provided on both sides in front of the opening of the envelope.
With a pair of insert guides arranged at
Are opposed to each other substantially at the center in the width direction of the envelope, and
A first position outwardly spaced from the opening;
The second end is located within the envelope and is parallel to the widthwise edge of the envelope.
An axis perpendicular to the plane where the envelope is arranged in two positions
The base is rotatably supported around the second position, the second position
The above object is achieved by an envelope opening device in an envelope enclosing and sealing machine, characterized in that an inclined surface portion is formed so as to widen the envelope when rotating in the direction .

Further, the insert guide is provided in the envelope arrangement.
The horizontal surface along the installation surface and the slope continuous above it
Formed in a substantially V-shaped cross-section
The horizontal surface and the inclined surface at the second position.
The enclosure may guide the enclosure into the envelope .

[0013]

According to the present invention, the tips of the pair of insert guides enter the envelope from a substantially central position in the width direction of the envelope, which is an easy-to-open portion at the edge of the envelope opening. Since the envelope reaches both ends in the width direction, the envelope can be opened greatly.

[0014] At this time, it is possible to increase the opening of the envelope by the inclined slope section.

According to claim 2, when brought into largely opened envelopes by an insert guide, Rutotomoni horizontal portion bent into a V-shape from the inclined surface portion of the insert guide pressing the inner surface of the envelope, V-shaped part for inclusion
In addition, insertion of the enclosed material can be facilitated.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 4, the envelope opening device 20 according to this embodiment is spaced apart via an envelope passage 24 that allows the flap 22A to pass through the opened envelope 22. Tables 26A and 26B, a flap holding roller 28 that presses the flap 22A of the envelope 22 sent from the envelope passage 24 onto the table 26B in the envelope passage 24, and a tip of the flap holding roller 28 that contacts the envelope gripper 30 and is positioned. The flap 22A is the flap holding roller 2
8, the envelope 2 being pressed in the envelope passage 24.
2 are provided.

The insert guide 32 is shown in FIG.
As shown in FIG. 4, one end is a slightly tapered rectangular shape, and the cross section is substantially V-shaped, as shown in FIG. 4, and the horizontal plane portion 3 is parallel to the upper surface of the table 26B.
3A, and an inclined surface portion 33B that extends back from one end of the horizontal surface portion in a substantially V-shape.

The horizontal surface portion 33A is made parallel to the upper surface of the table 26B, and the inclined surface portion 33B extends obliquely upward above the horizontal surface portion 33A from the leading edge of the V-shape.

Each of the pair of insert guides 32 has a vertical rotating shaft 3 at its inclined surface portion 33B.
4 is integrally attached to the lower end. The pair of rotation shafts 34 are symmetrically oscillated by a oscillating device 36 to be described later in a 90 ° range around the central axis in a symmetrical manner.

That is, as shown by the two-dot chain line in FIG. 2, the insert guide 32 has an opening edge 22B of the envelope 22 positioned by the envelope gripper 30 and the flap holding roller 28. Outer position
In parallel with the first position, the tip 32B is swung in a direction of opening 90 ° so that the tip 32B enters the envelope 22 at a first position where the tip 32B is substantially near the center of the envelope 22 in the width direction. Approaches the width direction edge 22C of the envelope 22 and can be swung between a second position parallel to the edge 22C.

The oscillating device 36 includes an oscillating plate 36A attached to the rotating shaft 34 so as to oscillate integrally therewith.
And a pin 36B provided on the rocking plate 36A, and slidably engaged with the pin 36, and moved forward and backward in the envelope feed direction, thereby moving the rocking plate 36A around the rotation shaft 34. A slide plate 36C that swings in a range of 90 °, a drive shaft 36D that is arranged above the table 26A horizontally and transversely to the envelope feed direction, and is attached to the drive shaft 36D and its tip ( A drive plate 36F which pulls the slide plate 36C upward in FIG. 1 against the spring 36E by the lower end).

The spring 36E biases the slide plate 36C in the envelope feed direction to move the insert guide 32 to the first position.
It is a return spring that biases the position. Reference numeral 38 in FIG. 1 indicates an insert carriage that feeds the enclosed material in the envelope direction.

Next, the operation of the above embodiment will be described.

First, the envelope 22 is opened so that the flap 22A is open and the flap 22A is at the rear end.
4 to the table 26B. The envelope 22 is held on the table 26B by the flap holding roller 28 with the front end in contact with the envelope gripper 30.
Is held.

At this time, the slide plate 36C of the insert guide 32 is moved by the spring 36E of the swinging device 36 as shown in FIG.
Is in the first position by being pulled to the lower left. When the drive shaft 36D is rotated in the direction of the arrow in FIG. 1 in this state, the drive plate 36F integrated with the drive shaft 36D pulls the slide plate 36C upward in the figure against the spring 36E, and the slide plate 36C Swing plate 3 via pin 36B
6A and the rotating shaft 34 are swung, so that the insert guide 32 is driven to the second position.

When the insert guide 32 swings from the first position to the second position, the distal end 32B of the insert guide 32 moves from the substantially center position in the width direction at the opening edge 22B of the envelope 22 to the surface 22D of the envelope 22. It enters between the back surface 22E.

The central position in the width direction at the opening edge 22B of the envelope 22 is easier to open as compared with the vicinity of the edge in the width direction.
In addition, since there is no bonded portion such as a camber, the insert guide 32 can easily and smoothly enter the envelope 22.

While the insert guide 32 passes under the camshaft 22F before reaching the second position, the camshaft 22F is glued to the back surface 22E in a range where the tip 32B of the insert guide 32 and the vicinity thereof pass. In addition, since the back surface 22A of the envelope 22 and the camber 22F attached to the back surface 22A are lifted by the inclined surface portion 33B, the leading edge 32A at the lowest position of the inclined surface portion 33B is lifted.
Does not interfere with the camas 22F. Accordingly, the leading edge 32A of the insert guide 32 can easily swing to a position near the width edge 22C of the envelope 22.

In the second position state of the insert guide 32, as shown in FIGS. 1 and 4, the envelope 22 is largely opened by the inclined surfaces 33B of the pair of left and right insert guides 32.

In this state, when the enclosed material 40 is pushed to the lower left in FIG. 1 by the insert carriage 38, the enclosed material 40 smoothly reaches the innermost portion of the envelope 22 without any interference with the cam 22F of the envelope 22. Inserted. At this time, the insert guide 32 regulates the position of the envelope 40 in the width direction of the envelope by the inner side surface of the inclined surface portion 33B, and the upper surface of the horizontal surface portion 33A serves as a guide with which the envelope 40 slides.

When the enclosed object 40 is inserted into the envelope 22,
The front end of the envelope 22 is sandwiched by the envelope gripper 30 together with the envelope 40, and sent out to the lower left in FIG. After the envelope 22 is sent out together with the enclosed material 40, the swinging device 3
6 is returned to the standby position by going through the process in the opposite direction by the spring 36E, whereby the insert guide 32 returns to the first position shown by the two-dot chain line in FIG.

In this manner, the insert guide 32 is swung between the first position and the second position, and the enclosed material 40 can be sequentially inserted into the envelope 22 which is sent intermittently.

In the above embodiment, the insert guide 3
2 is a rectangular shape or a rectangular shape in plan view, but the present invention is not limited to this. When the insert guide swings from the first position to the second position, the tip of the insert guide is What is necessary is just to be able to open the front surface 22D of the envelope greatly with respect to the back surface 22E without interference.

Therefore, as in the second embodiment shown in FIG. 5, for example, an arc-shaped horizontal surface portion 33C may be provided below the inclined surface portion 33B. In the case of the second embodiment, the surface 22D of the envelope 22 can be reliably pressed at the first position so as not to be lifted, and a reliable guide for the enclosed matter 40 can be formed.

Also, as in the third embodiment shown in FIG.
An insert guide including only the inclined surface portion 33B may be used.

In the above embodiment, the envelope 22 is fed into the envelope opening device 20 with its front surface 22D facing down. However, the present invention is not limited to this. You may make it send in so that the surface 22D and the flap 22A may become upper side.

In this case, the inclined surface portion and the horizontal surface portion of the insert guide are also upside down from the first embodiment of FIG.

Further, in the above embodiment, the tip 32D of the insert guide 32 has the opening edge 22B of the envelope 22.
Is inserted into the envelope from the central portion in the width direction where it is easiest to open, as shown by a two-dot chain line in FIG.
An envelope holder 42 is disposed at a position in the direction of the leading edge from the opening edge 22B of the envelope 22 and above the center position in the width direction of the envelope, and the envelope holder 42 presses the envelope 22 from above. 22B should be opened.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an envelope opening apparatus according to the present invention.

FIG. 2 is a plan view showing a main part of the embodiment.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a view taken along the line IV-IV in FIG. 2;

FIG. 5 is a plan view showing an insert guide according to a second embodiment of the present invention.

FIG. 6 is a side view similar to FIG. 4, showing a relationship between an insert guide and an envelope according to a third embodiment of the present invention.

FIG. 7 is a schematic plan view showing a conventional envelope opening device.

8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a sectional view showing the operation of the conventional envelope opening device.

FIG. 10 is a perspective view showing a main part of an envelope.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 ... Envelope opening device 22 ... Envelope 22A ... Flap 22B ... Opening edge 22C ... Width edge 22F ... Cam flap 28 ... Flap holding roller 30 ... Envelope gripper 32 ... Insert guide 32A ... Tip edge 32B ... Tip 33A ... Horizontal plane part 33B ... Slope surface part 34 ... Rotating shaft 36 ... Swing device 40 ... Enclosed thing

Claims (2)

(57) [Claims] A flap for holding an envelope flap open.
Insert the enclosure into the open envelope.
And an insert carriage when to insert the enclosures inside the envelope that, in the envelope opening apparatus in enclosing and sealing machine envelopes for opening the opening of the encapsulating tube, the opening sides in front of the envelope A pair of inns placed separately
With the support guide, make sure that both ends are
Opposed to each other at the center and spaced outward from the opening
A first position, and both ends are located in the envelope and
And a second position parallel to the widthwise edge of the envelope.
The base can be rotated about an axis perpendicular to the envelope placement plane
The envelope when rotating to the second position.
Envelope opening apparatus according envelope enclosing and sealing machine, characterized in that the formation of the inclined surface to the gel so. 2. The insert guide according to claim 1, wherein the insert guide is connected to a horizontal surface along the envelope arrangement surface and above the horizontal surface.
A substantially V-shaped cross section constituted by the continuous inclined surface portion
Bent at the second position.
Envelope opening apparatus according envelope enclosing and sealing machine enclosure by the surface portion and the inclined surface portion is equal to or was due <br/> Unishi is guided into the envelope.