JPS60150973A - Staple feed stopping apparatus of stapler - 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 <Industrial Application Field> The present invention relates to a stapler that stops the feeding of a connected stable that is fed toward a stable extrusion section in accordance with the operation mode of the stable extrusion piece. Regarding stable feed stop device.

BACKGROUND TECHNOLOGY AND PROBLEMS> Conventionally, there has been a stapler that feeds a connected staple toward a stable extrusion section in synchronization with a stable extrusion section each time the stable extrusion section returns to the top dead center. Are known.

In the above-mentioned conventional stapler, when the stable causes binding errors and buckles, and this buckled stable remains in the stable extrusion section, the return movement of the extruded stable piece toward the top dead center is prevented. By placing the stable extrusion piece in a protruding state within the stable extrusion portion, feeding of the subsequent connected stable is stopped and double striking of the stable is prevented.

By the way, the above stapler has a structure in which the feeding of the stable is stopped by controlling the return stroke of the stable extrusion piece. Therefore, the stable extrusion piece can be directly pressed, such as with a manual stapler in which the stable extrusion piece is pushed down with a finger or the like through a handle, or a 1D magnetic stapler in which the stable extrusion piece is pushed down with the protruding force of an electromagnetic plunger. For those driven by
Although it is possible to reciprocate the stable extrusion piece without returning to the second dead center, the rotational force of the electric motor is converted into linear motion force via a link mechanism or cam mechanism, and the stable extrusion piece can be driven at a constant stroke. Electric staplers that move reciprocally have a structure in which the subsequent downward drive cannot be performed unless the stable extrusion piece returns to the top dead center, and as mentioned above, the return stroke of the stable extrusion piece If the structure is such that the stable extrusion piece is not able to be driven back and forth, it may cause seizure of the electric motor, which is not preferable.

<Purpose of the Invention> Therefore, the present invention has been proposed in view of the conventional practice (% VC), and is a method that completely reliably feeds the stable when a misspelled staple remains in the stable extrusion section. It is an object of the present invention to prevent staples from being struck twice by stopping the staple, and to enable reciprocating of the stable extrusion piece even in this case.

<Summary of the Invention> In order to achieve the above-mentioned object, the present invention, when the stable extrusion piece enters the stable extrusion part of the stapler main body, presses the connected stable that is sent in the direction of the staple extrusion part. The staple presser is a member that stops feeding 9, the release member that releases the operating state of the staple presser after the staple has been pushed out, and the staple that has caused binding stains remains on the stable extruder. The present invention is characterized in that the staple presser comprises a locking member that allows the stable push-out piece to reciprocate and maintains the operating state of the staple holding member.

<Example> Hereinafter, an example of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a schematic vertical side view showing an example in which the present invention is applied to an electric stapler. This electric stapler has a turning force of a wake-up moke (not shown) and an IJ link mechanism (not shown).
The force is transmitted to the stable extrusion piece 1 through the interaction, and by driving the stable extrusion piece 1 back and forth in the vertical direction in FIG. While extruding a U-shaped staple, the staple is pushed into an object to be bound such as a document, and the opposing (
(not shown) so that it can be folded into the whole torn article.

The stapler main body 2 is placed and fixed on a base 4. The upper stapler main body 2 is formed into a box shape, and in the central part, a large number of sheet-like connected staples (staples that have not been formed into a U-shape are connected) 100 are stacked in a multi-tiered manner. A magazine section 5 is formed in which the magazine section 5 is housed. The above-mentioned connecting staples 10 are contained in this magazine section 5.
A pusher plate 6 for pushing the 0 group into the bottom +1111 of the magazine section 5 is arranged. - The free end of a press lever 8, which is pivoted to the stapler main body 2 via a support shaft 7, is engaged with the upper part of the pusher plate 6, and the press lever 8 is a constant force spring. It is constantly urged to rotate in the clockwise direction in FIG. 1 by a certain mainspring 9.

Therefore, the pusher plate 6 is always pushed into the group of connected stables 100 with a uniform force by the force of the spiral spring 9 via the pressing lever 6. The front surface of the stable extrusion piece 1 is slidably guided by a face plate 10 provided at the front part of the stapler main body 2 (@1 left part in the figure). A forming plate 11 is integrally fixed to the rear surface of the stable extrusion piece 1 for forming the leading edge of the connected staple 100 into a U-shape before extruding it from the stable extrusion part 371.

The rear surface of the forming plate 11 is slidably guided by a guide plate 12 arranged parallel to and facing the face plate 10.

The stable extrusion section 3 includes a stable forming plate 13 that faces the lower end 102L of the face plate 10 and the lower end 10a with a gap for stable extrusion therebetween.
It has. The molded stable extruded by the stable extrusion piece 1 is guided in its front direction by the face plate 10, and its mask is guided by the stable molding plate 13K.

#P4 is stored in the magazine capital 5 on the cross section of the stapler body 2.
The staple feeding device 14 that feeds the twisted connected staple 100τ stable extrusion part 3V'c is 6
I feel sorry for myself.

This stable feeding device 14 has the above-mentioned magazine sound IX5.
The connecting stable 100 located at the lowermost end of the magazine section 5 is connected to the stable feeding path 1.
5 to the stable extrusion h113.

The feed claw 16 is attached by being integrally formed with a temporary bar 1817. 2. Attachment: The base end of the plate portion 17 is pivotally supported on the base 4 via a support shaft 18. Then, the feed claw 16
When the stable push-out piece 1 is located at the top dead center (positioned in the state shown in FIG. 1), the tip faces the front edge of the delivery port 60, held in a separate position.

The feed claw 16 is engaged with the staple feed passage 15 and a stepped portion 20 of a feed bottle 19 arranged on the flat material, and one end of the feed bottle 19 is connected to a recess 20 formed in the bottom of the stapler main body 2. The other end of n1 is slidably inserted into the stable extrusion part 3 through the entire stable forming plate 13. A compression coil spring 22 is attached to the outer periphery of one end of the feed bin 19 to constantly bias the bin 19 in the direction of the stable extrusion portion 3. In addition,
The spring 22 also acts to elastically press the feed pawl 16 against the stepped portion 20.

When the stable extrusion piece 1 enters the stable extrusion part 3 and is located at the bottom dead center, the feed claw 16 moves the feed pin 19 against the elastic force of the compression coil spring 220 to the right in FIG. The tip of the -1-6 self-feeding claw 16 faces the connected staple feeding port 60 of the magazine section 5; The connecting stable 100 is held at a position where it engages between the most advanced stable and the second stable of the connecting stables 100 located at the lowest stage.

Furthermore, a reverse market claw 23 is fixedly attached to the bottom of the stapler book 2 to prevent the connection stable 100 fed by the upper d1 feed claw 16 from moving backward. The tip of this reverse market claw 23 faces the connecting stable delivery port 60 from the lower side, and connects the most advanced stable and the second stable of the lowermost connecting stable 100 in the magazine section 5. engaged between.

- to the lowermost connecting stable 10 in the iL magazine section 5
0 is sent in the direction of the stable extrusion part 3 with a stroke equal to the wall thickness of the stable by the stable extrusion piece 1 reciprocating and the stable feed claw 16 being driven by j. And - upper 6 self magazine section 5
When the rearmost stable of the lowermost connecting staple 7° 100 is sent out from the connecting staple delivery port 5Q7+>Fz, the entire connecting stable 100 of the second stage from the bottom of the Makazin'fal15 is placed at the bottom of the magazine section 5. Send it in like you're depressed! It will be done. Therefore, the connected stable group in the magazine section 5 can be sequentially fed one by one toward the staple extrusion section 3.

At the front ends 7 to 11 of the stable feed passage 15, there is a busho chaf which feeds the staple 6 formed into a U-shape between the forming plate 11 and the stable route 13 into the stable extrusion section 3.

Lock 24 is self-punching.

The compression coil 24 is attached to the feed bin 19 in a slidable manner, and the compression coil (2111: Therefore, the staple extrusion section 3 is always elastically biased.

In addition, on the front side (left side in FIG. 1) of the stapler main body 2, a connecting stable 10 is provided in synchronization with the staple extrusion piece 1.
A stable feed stop device 30 for stopping the feed of 'O is provided. The above-mentioned stable feed stop device 30 is used for connecting staples 100 positioned 1i in the stable feeding path 15.
The stable is configured to completely stop feeding by pressing upward.

As shown in FIG. Pressure contact/separation drive vJ-g nru.

The link mechanism 33 has one end attached to the stapler main body 2 and the bin 3.
4 (11-) and a substantially U-shaped first link part 35, which is disposed in the direction of the concave part of the link part 35 and has a longitudinally intermediate part in the stapler main body 2 that is connected to the bin 36 ( i
- The second link portion 37η1 is pivotally supported through the second link portion 37η1.

The staple holding plate 32 is connected to one end side of the first link portion 35 via the support plate 38 with a staple 100 attached thereto.
It is pivoted so that it can swing freely in the width direction. The first link portion 35 is attached to one end of the second link portion 3γ.
A notch 40 is formed at one end τ1 of the holder to engage with the recessed protrusion 39. The protrusion 39 and the notch 40 are in an assembled state before operation. At this time,
The plate 32 with the above-mentioned staple presser is a connecting staple 100
It is supported floatingly above and placed in a spaced apart state from the connected staple 100. The first link portion 35 is the link portion 3
5 and the right side plate portion 2A constituting the stapler body 2, the stapler body 2 is always elastically biased in the clockwise direction in FIG. Further, the second link portion 37 is always resiliently biased in the angular direction in FIG. 2 by a second tension spring 42 disposed between the link portion 3γ and the guide plate 12.

On the other hand, the link mechanism 33 is driven on the rear surface of the staple pushing piece 1, and the central part of the L-shaped actuating piece 43 for press-fitting the plate 32 onto the connecting table 100 is attached via the pin 44. It is supported by Also, on the rear surface of the staple extrusion piece 1? At a position above the upper 6 self-actuating piece 43, the upper 8 self-actuating mechanism 33 (I-return drive) is connected to the plate 32 with the stay mold presser connected to the stable 1.
An actuating bin 44 for floating and separating from the 00 upper 71X is provided in a protruding manner. The above-mentioned operating piece 43 is constantly operated by a tension pie (not shown) disposed between the piece 43 and the left plate part 2B that constitutes the stapler main body 2, as shown in Fig. 2. It is elastically biased in the rotational direction, and in the pre-operation state, one end is in contact with and supported by the left side plate portion 2B indicated by -F, and the other end is connected to the second link portion 3γ. It is supported so as to face the end from above.

Next, the operation of the stable feed stop device 30 will be explained with reference to FIGS. 3 and 4.

First, the case of normal slack 9 will be explained. As shown in FIG. 3, when the staple pushing piece 1 is driven downward, one end of the operating piece 43 engages with the other end of the second link portion 37. moreover,
As the staple push-out piece 1 descends, the second link portion 37 connects to the second tension spring 4 as shown in FIG. 3B.
20 is rotated counterclockwise in the figure against the elastic force, and the fitted state between the notch portion 40 and the projection portion 39 is released.
It can be constructed.

As a result, the first link portion 35 is connected to the first tension pie.
The plate 32 is rotated in the downward direction in the figure by the elastic force of the plate 41, and the plate 32 is pushed downward in the figure and presses the connected staple 100 from above. Then, the staple extrusion piece 1 presses the U-shaped stable in the staple extrusion part 3, and the forming plate 1
When 1 starts forming the second stable into a U-shape, -
1- The operating piece 43 is separated from the second link portion 3T as shown in FIG. 3C. Even if the engagement between the actuating piece 43 and the second link part 37 is broken, the second link part 37 is always rotated in the clockwise direction in FIG. Since it is elastically biased to rotate, one end of the second link part 37 abuts and engages with the protrusion part 39 of the first link part 35, and the stay mortar is attached to the connection 2 table 100 of the plate 32. The presser foot can maintain its condition. Then, when the staple pushing piece 1 pushes out the stable staple pushing parts 3 and reaches the bottom dead center, the operating pin 44 moves to the first link part 35 as shown in the third diagram.
Push in the other end and rotate the first link part 35 counterclockwise in the figure against the elastic force of the first tension spring 410. As a result, the plate 32 with the stay mold presser is pulled upward in the figure, and the state of the plate 32 with the stay mold press on the connected stable 100 is changed to w4van.
, the notch 40 and the protrusion 39 are combined again, and the staple mold retainer is supported floatingly on the plate 32-metal connection stable 100. Then, when the staple pushing piece 1 returns toward the top dead center and one end of the actuating piece 43 comes into contact with the other end of the second link part 37 as shown in FIG. It rotates clockwise in the figure against the elastic force of. Then, when the staple push-out piece 1 further moves back, the engagement state between the actuating piece 43 and the second link part 37 is broken as shown in FIG. The staple extrusion piece 1 moves to the upper position, and the staple pushing piece 1 returns to the top dead center.

Next, the object to be bound is hard and the stable causes spelling errors.
The case of an abnormal edge Q in which a buckled stable remains within the staple extrusion portion 3 will be fully explained.

Even in the case of abnormal ridges, the stay mortar weight is plate 32.
The operations from FIG. 3 to FIG. 3 c-i are the same as in the case of normal spelling.

When the buckled stable remains in the staple extrusion part 3, the staple extrusion piece 1 is in the state 7p shown in FIG. 3C.
It is no longer possible to drive the vehicle lower.

At this time, the electric motor continues to rotate. By the way, a buffer member made of a rubber material or the like is provided at the pivot point of the link mechanism arranged between the motor and the staple extrusion piece 10.
The stroke has a margin for the deflection of the buffer member. Therefore, even if the staple push-out piece 1 is obstructed by the buckled stable and does not reach the bottom dead center, the link mechanism can be driven, and the staple push-out piece 1 is configured to automatically return.

Therefore, the staple pushing piece 1 begins to return before the operating pin 44 pushes the fin end of the first link portion 3γ, and the operating piece 43 follows the return movement of the staple pushing piece 1 as shown in FIG. , one end thereof abuts and engages with the other end of the second link portion 37, and is rotated clockwise in the figure.

Then, as the return movement of the staple push-out piece 1 progresses, the actuating piece 43 and the second link part 3 move as shown in FIG. 4B.
7 is released, the actuating piece 43 moves to a position above the second link part 37, and the staple pushing piece 1 returns toward the top dead center. In this way, the staple pushing piece 1 returns before the actuating pin 44 pushes the other end of the first link part 35, so that the state of the staple pressing plate 32 being pressed against the connecting stable 100 can be maintained. can. Unless the buckled stable is ejected from the inner blade of the staple extrusion section 3, the actuating piece 43 and the second link section 37 are It is possible to repeat the operations in the order shown in , during which time feeding of the staple can be stopped, and double striking of the staple can be prevented.

In this way, according to the embodiment described above, if a buckled staple due to a misspelling remains in the staple extrusion section 3, the stable table will remain in place until the buckled stable is discharged from the staple extrusion section 3. Since the feed position can be stopped and set, double striking of the stable can be prevented.

In addition, even if the buckled stable remains in the staple extrusion section 3, the stable extrusion piece 1 can continue to be driven back and forth, thereby preventing seizure of the electric motor. I can do it.

Also, when the staple extrusion piece 1 enters into the staple extrusion part 3 and extrudes the staple from within the staple extrusion part 3 and forms the second staple into a U-shape by the forming plate 11, the connecting staple 1
00 can be held down so that it does not move, so the staple can be extruded straight from the staple extrusion part 3 and the inner knife 1, and the second staple can be accurately formed into a U-shape. be able to.

Note that the present invention is applicable to a manual stapler in which the stable extrusion piece 1 is pushed down and driven in front of the finger through the handle r, or an electromagnetic stapler in which the stable extrusion piece 1 is pushed down and driven by the protruding force of an electromagnetic plunger. Even if this happens, the stable can be double-hammered as in the second embodiment, and the reciprocating drive of the stable extrusion piece 1 can be maintained.

<Object of the Invention> As described above, according to the present invention, when a buckled stable due to a misspelling remains in the stable extrusion section, the buckled stable is discharged from the stable extrusion section 71\. Since the feed of the stable can be stopped until the point is reached, double striking of the stable can be prevented.

Even if a buckled stable remains in the stable extrusion 811, the stable extrusion piece can be reliably returned to the top dead center, so the rotational force of the electric motor is transferred to the link mechanism. Alternatively, it is converted into linear motion force via a cam mechanism, and even for an electric stapler that reciprocates the stable extrusion piece with a constant stroke, it is possible to reciprocate the stable extrusion piece after a binding mistake, and the electric motor It is possible to prevent burn-in, etc.

[Brief explanation of the drawing]

Fig. 1 is a schematic vertical side view of an electric stapler according to an embodiment of the present invention, Fig. 2 is a schematic front view showing the stable feed stop device, and Fig. 3 is the stable feed stop device in a normal binding state. FIG. 3 is a schematic front view showing the operation of the stabilizer presser in order, and FIG. 3 is a diagram showing a state in which the stable extrusion piece has descended halfway, and FIG. 3B is a state in which the staple presser plate is pressing down the connected staple. Figure 3C is a diagram showing a state in which the connecting stable is held in place, Figure 3 is a diagram showing a state in which the stable pushing piece has reached the bottom dead center, and Figure 3E is a diagram showing a state in which the stable pushing piece has reached the bottom dead center. Figure 3F shows the stable extruded piece in the middle of its return from the state shown in Figure 3E. Figure 4 shows the stable extruded piece in an abnormal spelling state. 4A is a schematic front view showing the operation of the feeding device, FIG. 4A is a diagram showing a state in which the stable extruded piece is in the middle of its return, and FIG. 4B is a diagram showing the stable extruded piece further returned from the state shown in FIG. 4A. It is a figure showing a state. 1. Stable extrusion piece 2. Stapler main body 6. Stable extrusion part 60. Staple feeding stop device 6
2-・Stamol presser is plate 36-・Link mechanism 3
9. Projection 40. Notch 43. Actuation piece 44.
- Actuation pin patent Applicant Max Co., Ltd. Agent Patent attorney Akira Koike (A-44 Figure 4 (B) -44

Claims (1)

[Claims] When the stable extrusion piece enters the stable extrusion part of the main body of the stapler
A member is used to hold down the connected stable to be fed in, and a member is used to hold down the stable to stop feeding the stable. After the stable is pushed out, a release part is used to completely release the operating state of the member, and the stable extrusion part is used. When the stable that caused the spelling error remains, the above-mentioned stabil push-out piece is allowed to move back and forth, and the above-mentioned stapler presser is used as a locking member to maintain the operating state of the member and a stapler such as a sword. Table feed stop device.