JPH0650142Y2 - Paper guide device for stapler - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a stapler for binding paper such as documents and slips with a staple generally called staple,
In particular, the clincher that performs the so-called clinching operation by bending the leg portion of the binding needle protruding to the back surface side of the binding paper has the paper receiving member, and the paper receiving member normally projects from the upper surface of the stapler base member. It is sunk in a partially protruding state, supporting the paper until the leg of the binding needle penetrates the paper, and descends after penetrating to flatten the leg of the binding needle along the back surface of the paper. The present invention relates to the improvement of a stapler that bends, that is, performs a so-called flat clinch.

[Prior Art] This type of stapler is known from, for example, Japanese Utility Model Publication No. 30-11808 and Japanese Utility Model Publication No. 62-92173. The stapler of this type is also called a movable clincher type because the paper receiving member of the clincher part moves up and down, and is distinguished from the type in which the clincher part is fixedly arranged on the base member.

When binding the binding sheet P with a movable clincher-type stapler as shown in FIG. 6, the binding staple A descends toward the sheet P, penetrates the leg a of the binding sheet P into the sheet receiving member until a broken line state is reached. The pierced legs are then instantaneously bent by clinching. That is, the legs are bent in a flat shape along the back surface of the paper P as shown by the solid lines to perform the flat clinching. On the other hand, in the case of a stapler in which the clincher portion is fixed, as shown by the chain double-dashed line in the figure, the clinching operation of the legs is gradually bent as the binding needle descends, so It does not fit exactly on the back side and bulges out in a round shape. Therefore, when the same part of the paper is bound and overlapped, only the bound part becomes thicker, but the movable clincher type described above has an advantage that there is no such problem.

[Problems to be Solved by the Invention] As described above, in the movable clincher type stapler, the paper receiving member is usually in a state of partially protruding from the upper surface of the base member due to its configuration. Therefore, when inserting the binding paper between the base member and the frame member having the magazine containing the staples, there is a problem that the insertion edge of the paper hits the paper receiving member and the insertion operation cannot be performed smoothly. .

Especially on the premise of this kind of movable clincher type, and
When the base member is used on a desk, that is, in a so-called desk configuration, the paper is inserted using the upper surface of the base member as a guide, and thus the paper receiving member projects upward in the middle of the base member. The above configuration has a problem of decisively hindering the paper insertion operation.

The purpose of the present invention is to ensure that the paper receiving member, which is arranged so as to inevitably project above the upper surface of the base member for the purpose of performing the flat clinching, does not hinder the insertion of the spelled paper and that the paper is always smooth. It is an object of the present invention to provide a paper guide device for a stapler that can be inserted and can be suitably applied to a so-called desk type in which a base member extends in front of a paper receiving member.

[Means for Solving the Problems] In order to achieve the above object, in the paper guide device in the stapler of the present invention, a plate-shaped paper guide member is provided between the upper end of the paper receiving member and the front portion of the base member. The paper guide member is arranged and the rear end of the paper guide member is connected to the upper end of the paper receiving member so as to be interlockable with the paper receiving member.

Further, as a specific configuration, the connection between the paper receiving member and the paper guide member is such that recesses are formed on both sides of the paper receiving member, while the pin-shaped shaft portion formed at the corresponding end of the paper guide member is used. This is done by detachably fitting them.

[Operation] In the paper guide device of the present invention configured as described above, when the binding paper is inserted into the binding position between the base member and the frame member, the paper guide member and the paper receiving member in the protruding state. Since the guide is smoothly guided between the front portions of the base member, the paper can be smoothly inserted without being obstructed by the paper receiving member.

Further, since the paper guide member is connected to the upper end of the paper receiving member and swings in conjunction with the lowering of the paper receiving member,
It does not hinder the spelling operation.

Further, the detachable fitting of the paper receiving member and the paper guide member simplifies the assembly structure and ensures smooth operation of the paper receiving member and the paper guide member.

[Embodiment] An embodiment and a modification of the paper guide device in the stapler according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a desk-shaped stapler equipped with a paper guide device of the present invention, in which 1 is a base member composed of a substrate 2 and a cover 3, and 4 is a base member 1 rotatable by a support shaft 5. A frame member that is supported by and constitutes a magazine holder,
Reference numeral 6 is a magazine unit provided on the frame member 5 and loaded with the binding needle A, and 7 is an operation handle member constituting a handle unit rotatably supported on the frame member 4 by a support shaft 8.

Between the base member 1 and the frame member 4, and between the frame member and the operation handle member 7, return springs 9 and 10 made of compression coil springs are respectively inserted, and the members 4 and 7 are placed at the ascending position shown in the drawing. keeping.

The binding needle A is operated by operating a magazine locking lever 12 formed at the rear end of the frame member 4 to move the magazine unit 6
To the front of the frame member 4 (to the right in the drawing) and loaded into the front portion of the magazine unit 6. Binding needle A
The driver 14 for sequentially ejecting the staples at the tip from the count through the ejection port 13 is driven by relative rotation of both members 4 and 7 via a driver holder 15 provided between the frame member 4 and the handle member 7. Driven. The structure itself of the driver holder 15 and the magazine unit 6 is the same as a known structure, and thus detailed description thereof is omitted.

Reference numeral 16 denotes a clincher mechanism for bending and forming the leg portion of the binding needle along the back surface of the sheet, and is disposed on the base member 1 corresponding to the ejection port 13. The clincher mechanism 16 includes a clincher guide 17 fixed to the substrate 2 of the base member 1, a paper receiving member 18 that is guided by the guide 17 and can move up and down, and the member 18 is always on the upper surface of the base member 1.
A leaf spring 19 that elastically biases toward a position (protruding position) shown by a solid line in FIG.
A pair of folding members 20, which are rotatably supported around their axes by a pivot pin 47 (FIG. 3) described later, are fixed in a position below the paper receiving member 18, and cooperate with the folding members 20. And has a block body 21 that performs a cam action.

Reference numeral 23 denotes a slider, which is slidably arranged in the base member 1 in the front-rear direction of the base member, and has a tip portion 23a.
Is in the operating position shown in FIG. 1 which normally engages the lower end of the paper receiving member 18 in the protruding position to prevent the member 18 from descending. The base end portion of the slider 23 is operatively connected to the handle member 7 via an actuation link mechanism 24, and is constantly urged in the actuating position direction by a coil spring 25.

The operation link mechanism 24 is fixed to the handle member 7 and is engaged with the driver holder 15 to drive the driver holder 15. The link plate 26 is connected to the lower end of the link plate 26 through a connecting portion formed by a pin and a long hole. A lever 28 pivotally supported on a support shaft 27 on the frame member 4 at an intermediate portion, and a lever 31 connected to the lever via a link 29 and pivotally supported on a support shaft 30 on the base member 1 at an intermediate portion. It is composed of The lever 31 is connected to the slider 23 via a connecting portion including a pin 32 protruding from the lever 31 and an elongated hole 33 formed in the slider 23.

That is, in the operation link mechanism 24, the handle member 7 reaches the position shown by the two-dot chain line in FIG. 1 together with the frame member 4, and the ejection port 13 contacts the lower clincher mechanism 16 via the binding sheet P. Further, the slider 23 is not moved from the operating position where it is engaged with the paper receiving member 18 at the timing until the leg portion of the punched staple A penetrates the binding sheet P, and bending is started after the completion of the leg portion penetration. At this time, the slider 23 is slid from the operating position to the releasing position against the spring 25 in the direction in which it disengages from the engagement with the paper receiving member 18. The delayed operation timing of the slider 23 causes the operation of the operation link mechanism 24 corresponding to the rotation of the handle member 7 until the slide movement of the slider 23 is caused, so that the pin 33 can be freely moved in the long hole 32. It is obtained by a structure in which the slider 23 escapes by movement and is not transmitted to the slider 23.

The handle member 7 generally rotates integrally with the frame member 4 against the spring 9 up to the rotation position shown by the chain double-dashed line in FIG. The frame member 4 that is in contact with 18 is relatively spring
The binding needle A is ejected by rotating against 10.

Reference numeral 34 is a slidable gauge that abuts the leading edge of the paper to determine the binding position of the paper P.

In the stapler having the above structure, the upper surface 1b of the base member 1
More usually, a plate-shaped paper guide member 35 that connects the upper end of the paper receiving member 18 in a partially protruding state and the front portion 1a of the base member 1 is arranged, and the flat upper surface 1b of the base member 1 is arranged.
Instead of this, a guide surface for the spelled paper P is formed.
One end of the paper guide member 35, that is, the front end portion 35a is inserted into the engagement groove 36 formed in the cover 3 in the front portion 1a of the base member 1, and the other end, that is, the rear end portion 35b is the upper end portion of the paper receiving member 18. , And they are connected to each other without forming a step.

Therefore, when the binding sheet P is inserted between the base member 1 and the frame member 4 in FIG. 1 in order to bind the binding sheet A with the binding needle A, the sheet guide member 35 serves as a guide surface. Insertion can be smoothly guided from the front part 1a of the member 1 to the spelling position, and there is no obstacle such as hitting the protruding paper receiving member 18 and obstructing the insertion. Easy and quick spelling operation without particular attention. Can be done.

Moreover, since the rear end portion 35b of the paper guide member 35 moves together with the vertical movement of the paper receiving member 18, as shown in FIG. 2, the upper end of the paper receiving member 18 is the base member during the clinching operation. When descending so as to coincide with the upper surface, the guide surface of the paper guide member 35 also tilts with the front end portion 35a as a fulcrum, so that there is no hindrance in the binding operation of the binding sheet P. Further, at this time, the groove width is set so that the front end portion 35a of the paper guide member 35 can be sufficiently moved within the engagement groove 36. Third
As can be seen from the exploded view of the figure, the paper guide member 35 has a pair of tapered side plates 35c. These side plates 35c are guide grooves 37 (however, formed on the upper surface 1b of the base member 1).
(Only one side is visible in the figure), a gap is always closed between the side of the tiltable paper guide member 35 and the upper surface 1b of the base member to prevent the entry of dust and the like and to design the appearance. This has the effect of further reinforcing the plate-shaped member 35.

The front end portion 35a of the paper guide member 35 includes a pair of left and right elastic ear portions 38 protruding downward which are inserted into the engagement groove 36, and a pin-shaped shaft portion 39 formed at the lower end thereof so as to project outward. Have. When assembling the front end portion 35a of the member 35 to the base member 1, the left and right ears 38 and the shaft portion 39 are slightly deformed inward and inserted into the engagement groove 36 of the base portion 1, The shaft portions 39 corresponding to the fitting holes 40 formed in both ends of the groove (however, only one side is visible in the drawing) may be fitted. As a result, so-called snap engagement is performed, and the assembly can be easily and quickly performed without a separate mounting member.

A notch 41 is formed at the rear end 35b of the paper guide member 35, and a pair of left and right pin-shaped shafts 42 projecting from the left and right inner ends of the notch in mutually facing directions. On the other hand, engaging recesses 43 and leg portions 44 are formed on both sides of the paper receiving member 18 connected to the rear end portion 35b. If the corresponding pin-shaped shaft portion 42 of the paper guide member 35 is engaged with the recess 43 during assembly, the shaft portion 42 is allowed to rotate relatively in the recess 43, but Since the vertical movement of the leg portion 44 is restricted by the leg portions 44, the upper end portion of the paper receiving member 18 and the rear end portion 35b of the paper guide member 35 can move up and down while always maintaining the connected state, as described above.
Further, even in this connecting portion, simple and quick assembly can be performed without a separate mounting member.

The paper guide member 35 can be manufactured by integral molding of synthetic resin including the above-mentioned configuration of the front end portion 35a and the rear end portion 35b. or,
The cover 3 forming the upper surface portion of the base member 1 can also be integrally molded with synthetic resin.

As shown in FIG. 3, the leaf spring 19 has its tip end inserted into the slit 46 of the paper receiving member 18 through the opening 45 of the clincher guide 17 during assembly. The opening 45 has a sufficient opening height so as not to obstruct the movement of the leaf spring 19 accompanying the vertical movement of the paper receiving member 18. The paper receiving member 18 and the clincher guide 17 are both formed in a box shape, and the inner peripheral wall surface of the guide 17 guides the vertical movement of the paper receiving member 18. In the paper receiving member 18, a pair of left and right folding members 20 are provided as pivot pins 47.
The block body (21) is pivotally attached via the and corresponds to the curved cam surface (21a) formed on the upper surface of the block body (21) facing downward from below.

The embodiment of the present invention has been described above, but FIGS. 4 and 5 each schematically show a modified example of the above-mentioned paper guide member 35, and the same reference numerals are used for parts corresponding to the embodiment. It will be briefly described below.

In the modified example of FIG. 4, the front end portion 35a of the paper guide member 35 extends integrally so as to cover the front end edge of the front portion 1a of the base member 1, and the side portions 35c also extend on both sides of the base member 1. The front end portion 35a extends outwardly so as to cover it, and the front end portion 35a is pivotally attached to the front portion of the base member 1, for example, by a support shaft 50, and the front end portion 35b is located at the protruding upper end portion of the paper receiving member 18 in the same manner as in the embodiment. It is a structure to connect.

In this way, the paper guide member 35 is simply attached to the upper surface 1b of the base member.
Base member 1 rather than being placed as a guide surface at
It can also be configured to be a part of the cover.

Next, in the modification of FIG. 4, the paper guide member 35 arranged on the upper surface 1b of the base member 1 forms a substantially horizontal guide surface in the normal state, that is, when the paper receiving member 18 is in a protruding state. The guide member 35 is
Rotatably connect the front end portion 35a of the to the stepped front portion 1a,
The rear end portion 35b is connected similarly to the embodiment.

In the above-mentioned configuration, the paper guide plate 35 tilts to the two-dot chain line state as the paper receiving member 18 descends during the clinch operation for binding the bound paper, but at this time the binding needle has already been pierced into the paper, so As a result, problems such as misalignment of stacked sheets do not occur.

As another modification, although not shown, the paper guide member is formed of a thin plate material having high flexibility, and the front end portion and the rear end portion thereof are respectively the front portion of the base member and the upper end of the paper receiving member. The guide member may be fixed to the portion and the flexibility may be used to deform the guide member according to the vertical movement of the paper receiving member.

As described above, various specific examples of the present invention including the paper guide member are conceivable, and the present invention is not limited to the above-described embodiments and modifications.

[Advantages of the Invention] As described above, according to the present invention, the paper receiving member of the clincher mechanism is protruded from the upper surface of the base member due to its configuration, and therefore, there is a problem that the insertion of the spelled paper is disturbed. A plate-shaped paper guide member is disposed between the upper end of the receiving member and the front portion of the base member, and the paper guide member smoothly guides between the upper end of the paper receiving member and the front portion of the base member. It has been solved by adopting, and it is possible to easily and lightly perform the insertion operation of spelled paper without paying particular attention, and it does not hinder the splicing operation of the paper or the state of the bound paper. In particular, various effects such as suitable implementation when the stapler is formed into a desk shape are exhibited.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a stapler equipped with a paper guide device of the present invention, FIG. 2 is an operation explanatory view corresponding to FIG. 1, FIG. 3 is an exploded perspective view of essential parts of the stapler of FIG. 4 and 5 are schematic diagrams of a modified configuration of the paper guide device, and FIG. 6 is an explanatory diagram showing a binding mode of the sheets by the binding needles. 1 ...... Base member 1a ...... Front part 4 ...... Frame member 7 ...... Operating handle member 16 ...... Clincher mechanism 18 ...... Paper receiving member 23 ...... Slider 35 ...... Plate-shaped paper guide member 35a ...... Front end part 35b …… Rear end 36 …… Engagement groove

Claims (2)

[Scope of utility model registration request] 1. A base member provided with a folding means for folding a leg portion of a binding needle along a back surface of a sheet, and a frame member for accommodating a binding needle group and rotatably supported with respect to the base member. And an operation handle member capable of rotating integrally with the frame member with respect to the base member, and further rotating relative to the frame member to drive a binding needle in the frame member by a driver member. The folding means is normally arranged so as to project and retract so as to partially project above the upper surface of the base member, and supports the paper until the leg portion of the binding needle penetrates the paper, and the binding needle. A stapler including a folding member that engages with a leg portion of the sheet and folds and forms the leg portion in a flat state along the back surface of the sheet, the upper end portion of the paper receiving member and the front portion of the base member. A paper guide in a stapler characterized in that a plate-shaped paper guide member is disposed between the paper guide member and a rear end portion of the paper guide member is connected to an upper end portion of the paper receiving member so as to be interlockable with the paper receiving member. apparatus. 2. The stapler according to claim 1, wherein pin-shaped shaft portions formed at corresponding ends of the paper guide member are detachably fitted in recesses formed on both sides of the paper receiving member. Paper guide device.