JP6737037B2 - Electric stapler - Google Patents

Description

This invention relates to an electric stapler.

Conventionally, in the electric stapler, when binding the binding sheets, even if the number and thickness of the sheets to be bound is different, the leg portion of the staple protruding through the binding sheet is cut according to the protruding length, There is known one in which the length of the leg portion of the staple protruding from the binding sheet is made substantially constant (for example, refer to Patent Documents 1 to 3).
Further, in these conventional electric staplers, the staple cutting waste generated by cutting the legs of the staple is guided laterally from the cutting location by the shooter and accumulated in the cutting waste storage portion provided at the end of the shooter. It is supposed to be done.

Japanese Patent No. 4513442 Japanese Patent No. 4103766 Japanese Utility Model Laid-Open No. 63-72001

As described above, the cutting waste accumulated in the cutting waste storage portion needs to be discarded before the cutting waste storage portion overflows. In particular, with an electric stapler used on a table, the user discards the accumulated cutting waste.
However, in the conventional electric stapler, since the cutting scraps are independently accumulated on the side of the electric stapler, it is difficult to notice the existence of the cutting scrap storage portion and forget to discard them.
If the cutting waste is forgotten to be discarded and the cutting waste overflows from the cutting waste storage portion and scatters inside the electric stapler, there is a risk that the operation of the electric stapler may be adversely affected.

The present invention has been made in view of the above problem, and provides an electric stapler capable of suppressing overflow of cutting waste from a cutting waste storage portion that receives cutting waste, and suppressing scattering of cutting waste in an electric stapler. The purpose is to

In order to solve the above problems, the electric stapler of the present invention,
A driver mechanism that drives the staples toward the binding paper,
A clincher mechanism unit that cuts the leg portion of the staple penetrating the binding sheets by the driver mechanism unit to a predetermined length and bends the leg portions along the back surface of the binding sheet.
A stapler body that supports the driver mechanism portion and the clincher mechanism portion so as to be relatively close to and away from each other;
A cartridge in which the staple is loaded and which is detachably attached to the driver mechanism section;
A cutting waste accommodating portion that receives cutting waste of the staple generated by the cutting of the clincher mechanism portion and is detachably provided in the stapler body,
Equipped with
The cartridge and the cutting waste container are provided so as to face the same surface of the stapler body.

In the electric stapler according to the present invention, when the staples in the cartridge are used up, it is necessary to replenish the cartridge with staples. When replenishing the staples, the cartridge is taken out from the stapler main body, but at that time, since the cutting debris storage section is arranged so as to face the same surface as the cartridge of the stapler main body, it is better than the case provided on the other surface. It is easy to notice the existence of the cutting waste container. That is, even if there is no purpose for discarding the cutting waste accumulated in the cutting waste storage portion, the cutting waste storage portion is noticed and the cutting waste accumulated in the cutting waste storage portion is prompted to be discarded. Therefore, it is possible to prevent the cutting waste from overflowing from the cutting waste storage portion and scattering into the electric stapler.

FIG. 3 is a cross-sectional view showing the electric stapler according to the first embodiment. FIG. 3 is a perspective view of the electric stapler according to the first embodiment viewed from the front side. FIG. 3 is a perspective view of the electric stapler according to the first embodiment as viewed from the rear side. FIG. 3 is a perspective view of the electric stapler according to the first embodiment viewed from the rear side, showing a state in which a rear door is opened. FIG. 3 is a perspective view of the electric stapler according to the first embodiment viewed from the rear side, showing a state in which a cartridge and a dust box are taken out. FIG. 3 is a bottom view of a main part of the electric stapler according to the first embodiment, mainly showing a bottom surface of a control unit accommodation box. FIG. 3 is a perspective view of a control unit housing box of the electric stapler according to the first embodiment as viewed obliquely from above. FIG. 3 is a perspective view of a base portion of the electric stapler according to the first embodiment as viewed obliquely from above and rearward. FIG. 3 is a cross-sectional view showing the main parts of the electric stapler of the first embodiment. FIG. 3 is a cross-sectional view showing the main parts of the electric stapler of the first embodiment. FIG. 3 is an enlarged cross-sectional view showing the main parts of the electric stapler of the first embodiment. FIG. 3 is a plan view showing a dust case in the electric stapler of the first embodiment. FIG. 3 is a cross-sectional view showing a dust case in the electric stapler of the first embodiment. FIG. 3 is a perspective view showing a dust box in the electric stapler according to the first embodiment as seen from obliquely above. FIG. 3 is a perspective view showing a dust box in the electric stapler according to the first embodiment as viewed from diagonally below.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(Embodiment 1)
(Overall structure)
First, the overall structure of the electric stapler A according to the first embodiment will be described.
As shown in FIG. 1, an electric stapler A according to the present embodiment is a tabletop type that is placed on a table and used. The stapler unit 30 includes a driver mechanism section 10 and a clincher mechanism section, and the stapler unit 30. And a stapler main body 40 that forms the entire outer contour of the electric stapler A.

As is well known, in this electric stapler A, when a binding sheet is inserted between the driver mechanism section 10 and the clincher mechanism section 20, staples formed in a U shape are driven from the driver mechanism section 10 into the binding sheet. The staple leg that penetrates the binding sheet is bent along a clincher groove (not shown) of the clincher mechanism unit 20 to bind the binding sheet.

Further, the electric stapler A according to the first embodiment is used on the table as described above, and the leg portion 41 is provided at the lower portion of the stapler body 40. Further, as shown in the perspective view of FIG. 2, the stapler main body 40 is arranged substantially parallel to the base plate 42b and a base portion 42 having a substantially rectangular parallelepiped shape, and a position spaced apart upward from the base plate 42b forming the upper surface of the base portion 42. The table 43 is provided, and the cover portion 44 is provided upright from the base portion 42 at a rear position of the table 43.

It should be noted that the direction of the arrow FR that faces the user is the front, the direction of the arrow RR that is the opposite direction is the rear, and the direction of the arrow L is the direction in which the binding sheet is inserted into the electric stapler A. The direction is left and the direction of arrow R is right. Further, the direction of arrow UP is upward and the direction of arrow DN is downward.

The cover portion 44 is a portion for accommodating the stapler unit 30 as shown in FIG. 1, and includes a main cover 44a forming a side wall and a ceiling plate portion and a front cover 44b forming a front wall as shown in FIG. Prepare A flange-shaped protective cover 44c is provided at the lower portion of the front cover 44b so as to project forward and left and right.

A rear door 44d is provided on the rear surface of the cover 44, as shown in FIG. As shown in FIG. 1, the rear door 44d is supported rotatably in the front-rear direction about a hinge 44e provided in the lower portion. As a result, the rear door 44d is rotated between a closed state in which the rear surface of the stapler unit 30 is covered as shown in FIGS. 1 and 3 and an open state in which the rear surface of the stapler unit 30 is exposed as shown in FIG. Dynamic displacement is possible.

Returning to FIG. 1, the drive control unit 50 is housed in the base portion 42.
The drive control unit 50 includes a power supply section 51 and a board section 52. The power supply unit 51 includes a transformer that converts an AC power supply of about 100V to 200V into a DC power supply of about 24V. The board unit 52 also includes a control circuit that drives the stapler unit 30 with the power supplied from the power supply unit 51.

The drive control unit 50 is fixed to the bottom portion 61 of the resin control unit housing box 60. As shown in FIG. 7, the control unit accommodating box 60 has a front wall 62, left and right side walls 63, 63, and a rear wall 64 extending from the outer peripheral edge of a plate-shaped bottom portion 61, standing upright, and opening upward. It is formed in a box shape. Then, as shown in FIG. 1, the control unit accommodation box 60 is fixed to the lower surface of the base plate 42b of the base portion 42 in a suspended state by a plurality of fastening members 65, and the accommodation space 60a is provided between the control unit accommodation box 60 and the base plate 42b. Has been formed. Although a screw member is used as an example of the fastening member 65 in the present embodiment, a fastening member other than the screw member may be used.

Further, FIG. 6 is a bottom view of the control unit housing box 60 as seen from below, and seven locations on the outer periphery are fixed by fastening members 65. Further, as shown in FIG. 1, the lower side of the control unit housing box 60 is covered with a metal thin plate-shaped bottom plate 45 forming the bottom surface of the stapler body 40.

Furthermore, the front wall 62 of the control unit housing box 60 forms the front surface of the base portion 42, as shown in FIG. A power switch 62s is provided on the front surface of the front wall 62 for switching the electric stapler A between a drivable state and a drivable state.

Further, as shown in FIG. 7 which is a perspective view of the control unit housing box 60 as seen from diagonally above, a primary wiring 53 and a secondary wiring 54 are connected to the drive control unit 50. As shown in FIG. 3, the primary wiring 53 is a wiring that extends from the power supply connection portion 46 provided at the rear portion of the base portion 42 and connects the external power supply and the power supply portion 51. Returning to FIG. 7, the secondary wiring 54 is a wiring that outputs a control output for driving the motor and the like formed in the substrate portion 52. In the control unit accommodating box 60, an entrance preventing member (illustrated by an elastic member such as a sponge or a rubber member for preventing entrance of staple scraps, which will be described later, is provided at the entrance and exit portions of the primary wires 53 and the secondary wires 54 (shown in the figure). Omitted) is provided.

(Stapler unit)
Next, returning to FIG. 1, the stapler unit 30 will be described.
The driver mechanism section 10 and the clincher mechanism section 20 which constitute the stapler unit 30 face each other vertically inside the cover section 44, and a binding sheet is inserted between the driver mechanism section 10 and the clincher mechanism section 20. It is accommodated in the cover portion 44 with a gap S provided therein.

In the first embodiment, the driver mechanism section 10 is fixed to a support frame (not shown) provided upright from the base section 42 of the stapler body 40, and the clincher mechanism section 20 moves vertically with respect to the driver mechanism section 10. It is rotatably supported by a support frame (not shown) of the stapler body 40. As shown in FIG. 8, the base plate 42b is provided with an opening 42c that allows vertical rotation without interfering with the clincher mechanism 20.

Further, the above-mentioned table 43 is arranged at the same height as the gap S so that the binding sheet placed on the upper surface thereof can be inserted into the gap S. As is well known, a switch for detecting the insertion of the binding sheets is provided in the gap S, and in the automatic mode, the stapler unit 30 is activated when the binding sheets enter, and the staple driving, the clincher operation and the stapling described below are performed. The legs are cut off. Although not described in detail, a switch section 44s for selecting the operation mode of the stapler unit 30 is provided on the upper portion of the cover section 44. By operating the switch section 44s, an operation mode other than the automatic mode can be selected.

Next, the configurations of the driver mechanism unit 10 and the clincher mechanism unit 20 will be described. The configurations of both the mechanical units 10 and 20 are the same as those described in the above-mentioned patent document, and will be briefly described.

(Configuration of driver mechanism section)
The driver mechanism unit 10 has a well-known structure for driving staples toward a binding sheet. Although not shown in detail, the driver mechanism unit 10 includes a forming unit 11 that forms straight staples into a U-shape, and a drive-out unit that drives the U-shaped staples formed by the forming unit 11 onto a binding sheet. 12 and a drive mechanism section (not shown) that drives the forming section 11 and the hitting section 12 by driving a motor.

In addition, a cartridge 70 that stores staples is provided in the driver mechanism unit 10 so as to be detachable by sliding in the front-rear direction with respect to the driver mechanism unit 10. The cartridge 70 includes a cartridge main body 72 in which a loading chamber 71 in which the roll staple 80 is loaded is formed, a lid 73 openably and closably provided on the cartridge main body 72, and a feeding unit provided at the bottom of the cartridge main body 72. 74 and the like are provided. The roll staple 80 is formed by connecting a large number of straight staples in a strip shape and then winding the staples in a roll shape.

When the roll staples 80 of the cartridge 70 are used up, new roll staples 80 need to be replenished. When this supplement is performed, the cartridge 70 is removed from the driver mechanism section 10. When removing the cartridge 70 from the driver mechanism section 10, first, the rear door 44d in the closed state as shown in FIG. 3 is brought to the open state by being rotated backward as shown in FIG. Expose to the rear. Then, the cartridge 70 is slid backward and pulled out from the driver mechanism section 10. FIG. 5 shows a state in which the cartridge 70 is pulled out, and the driver mechanism section 10 has a cartridge inlet/outlet port 13 into which the cartridge 70 is inserted.

Next, the roll staple 80 is replenished by opening the lid 73 of the cartridge 70 removed as described above and filling the loading chamber 71 with new roll staple 80 to replenish it. Then, the cartridge 70 supplemented with the roll staple 80 is inserted from the cartridge inlet/outlet port 13 and attached at a predetermined position.

(Structure of clincher mechanism)
Next, the clincher mechanism unit 20 will be described. The clincher mechanism unit 20 has a well-known structure, and the configuration thereof is described in detail in the above-mentioned Patent Documents 1 to 3 and the like, and will be briefly described below.

The clincher mechanism portion 20 has a rear end portion of a clincher frame 21 shown in FIG. 1 formed in a frame shape, which is rotatably supported in a vertical direction with respect to a support frame (not shown) of the stapler body 40. That is, when the binding sheets are arranged between the driver mechanism unit 10 and the clincher mechanism unit 20, the clincher mechanism unit 20 is rotated in the direction of the driver mechanism unit 10 by the operation of the drive mechanism (not shown). After the binding sheet is sandwiched between the driver mechanism sections 10 to perform the clinch operation, the sheet returns to the original position.

Further, as shown in FIG. 9A, the clincher mechanism portion 20 is provided with a clincher portion 22 at the front end portion of a clincher frame 21. The clincher portion 22 is attached to the front end portion of the clincher frame 21 so as to engage with the leg portion of the staple protruding to the lower surface side of the binding sheet and bend the leg portion of the staple along the back surface of the binding sheet. It is rotatably provided.

Further, the clincher mechanism unit 20 has a tip portion of the staple leg so that the length of the portion of the leg portion of the staple (hereinafter, referred to as staple leg) penetrating the binding sheet and protruding from the binding sheet is made constant. A cutter unit 23 that cuts is provided. Although detailed illustration is omitted, the cutter unit 23 includes a fixed cutter and a movable cutter rotatably supported in a state of being in close contact with the fixed cutter, as described in Patent Document 1 above. By rotating the movable cutter, the staple legs arranged between the cutting edges of both cutters are cut into a predetermined length.

Below the cutter unit 23 in the clincher mechanism portion 20, a discharge path 24 for cutting waste generated by cutting the staple legs is formed. That is, the discharge port 25 is opened in the lower portion of the clincher frame 21, and the discharge path 24 is formed so as to extend from the cutter unit 23 to the discharge port 25 as shown by arrows YH1 and YH1 in FIG. 9A. A plate-shaped discharge guide member 26 is provided at the discharge port 25 of the clincher frame 21. The discharge guide member 26 covers a portion other than the front end portion of the discharge port 25 from above and is provided with an inclined portion 26a which is lowered rearward, guides cutting waste to the discharge port 25, and is discharged downward from the discharge port 25. It is possible to prevent the cutting waste from returning to the clincher mechanism section 20.

(Cutting waste container)
A resin dust case 100 and a dust box 110 are provided below the clincher mechanism 20 as a cutting waste container. The dust box 110 is formed in the shape of a box that opens upward to mainly receive the cutting waste that falls from the discharge port 25. The dust case 100 detachably supports the dust box 110 with respect to the clincher mechanism unit 20, and also receives cutting waste falling from the clincher mechanism unit 20 that cannot be received by the dust box 110.

As shown in FIG. 9A, FIG. 9B, and FIG. 9C, the dust case 100 is surrounded by a front wall 101, left and right side walls 102 and 102, and a bottom 103 in three directions, front and left and right sides, and a lower side. Is formed in a box shape with an opening. Then, as shown in FIGS. 9B and 10, a pair of bracket portions 102b and 102b are integrally provided in front of and behind the upper end portion of the side wall 102, and the bracket portions 102b are the bottom portion of the clincher mechanism portion 20 (of the clincher frame 21). It is fixed to the bottom surface).

As a result, a box housing portion 104 for housing the dust box 110 is formed between the dust case 100 and the clincher frame 21. As shown in FIG. 9A, the box accommodating portion 104 has a vertical dimension that gradually increases from the front end toward the rear, so that the dust box 110 can be smoothly attached and detached (sliding in the front-rear direction). Has been formed.

Then, the rear end of the box accommodating portion 104 is opened as a box entrance/exit 105 for inserting and removing the dust box 110. As shown in FIG. 5, the box doorway 105 is a cartridge doorway for loading and unloading the cartridge 70 on the rear side surface of the stapler unit 30 and on the rear side surface of the cover portion 44 with the rear door 44d of the stapler body 40 open. The cartridge 13 is disposed below the cartridge 13, and is vertically aligned with the cartridge inlet/outlet 13.

Further, as shown in FIG. 9A, the front wall 101 of the dust case 100 includes an extension wall portion 101a that covers a lower front portion of the clincher mechanism portion 20. Further, similarly, the front end portion of the side wall 102 of the dust case 100 is also extended so as to be continuous in the horizontal direction with respect to the extension wall portion 101a as shown in FIG. 10, and the front end portion of the side wall portion of the clincher frame 21 is removed. The extension wall part 102a which covers is provided. As a result, the front end portion of the clincher mechanism portion 20 is covered by the dust case 100 on the front, left and right sides, and the lower portion, and the cutting waste cut by the cutter unit 23 is discharged to the discharge path as shown by an arrow YH2 in FIG. 9A. Even if the dust case 100 falls off the gap from the front end portion of the clincher frame 21, the dust case 100 can be reliably received by the dust case 100.

As shown in FIG. 9B, the bottom portion 103 of the dust case 100 is formed in a substantially hat cross-sectional shape, and has step portions 103a and 103a formed on both left and right sides one step higher than the central portion, and both step portions 103a and 103a. And a recess 103b formed between them.

Further, the dust case 100 is extended downward from a position in contact with the bottom surface of the clincher frame 21 of the clincher mechanism portion 20, and is provided with an upper lock wall 108 over the entire width of the box housing portion 104. .. Further, the upper lock wall 108 is provided with a lock piece 108a which projects rearward and forms a fitting structure with a lock groove 117c of the dust box 110 described later over the entire width of the box housing portion 104.

Next, the dust box 110 will be described.
The dust box 110 is detachably supported in the box housing portion 104 of the dust case 100 as shown in FIGS. 9A and 9B. As shown in FIGS. 12A and 12B, a substantially rectangular bottom portion 111 and the bottom portion 111 are provided. A front wall 112, a rear wall 113, a left side wall 114, and a right side wall 115, which are provided upright from 111, are formed into a substantially rectangular box shape having a housing portion 116 that is open at the upper side. It should be noted that the dust box 110 is formed in a shape in which the vertical dimension thereof is gradually increased from the front side to the rear side similarly to the box housing portion 104.

Further, the dust box 110 includes a first partition wall 117a and a second partition wall 117b that partition the housing portion 116 in the front-rear direction. As a result, the storage unit 116 has a front storage unit 116a whose front and rear walls are partitioned by the front wall 112 and the first partition wall 117a, and a main storage unit whose front and rear are partitioned by the first partition wall 117a and the second partition wall 117b. The part 116b is formed. In this way, the rear end portion of the housing portion 116 is formed by the second partition wall 117b, and there is no cutting waste housing function between the second partition wall 117b and the rear wall 113 (see FIG. 9A). ).
As shown in FIG. 9A, the first partition wall 117a is formed at a height close to the lower surface of the clincher frame 21 in the state of being housed in the box housing unit 104.

Further, the second partition wall 117b has a space path connected to the outside at the upper end thereof when the lock piece 108a of the upper lock wall 108 attached to the lower portion of the clincher frame 21 is inserted at the time of accommodation in the box accommodation portion 104. A lock groove 117c that is bent in a U-shape and shields the main accommodation portion 116b from the outside is formed. The lock piece 108a and the lock groove 117c are provided over the entire width of the dust box 110, and by fitting the lock piece 108a and the lock groove 117c, a labyrinth structure having a U-shaped cross section is formed, and the main accommodating portion 116b and the outside are connected as described above. Cut off.

Further, the dust case 100 and the dust box 110 are engaged with each other at a position where the dust box 110 is inserted to the innermost storage position of the box storage portion 104 and the lock piece 108a and the lock groove 117c are fitted to each other, and which provides a fitting force. Is provided. That is, as shown in FIG. 12A, ribs 114a and 115a are formed on the outer sides of both side walls 114 and 115 of the dust box 110. Further, as shown in FIGS. 10 and 11, an uneven portion 106 is formed inside the side wall 102 of the dust case 100. As a result, when the dust box 110 is inserted into the box accommodating portion 104, a fitting force due to resistance acts when the ribs 114a and 115a pass over the convex portion of the concave-convex portion 106 immediately before the accommodation position. Further, at the housed position, the ribs 114a and 115a are fitted into the recesses of the concave-convex portion 106, so that the restricting force for arranging the ribs at the housed position acts, and when the dust box 110 is pulled out, the fitting force overcoming the convex part is exerted. To work.

In the first embodiment, the volume of the main accommodating portion 116b is such that cutting scraps generated when driving into two bound sheets, which is the minimum number when binding sheets with staples, that is, the longest cutting wastes are generated. Under the condition, the volume is set to be capable of accommodating the amount of cutting waste generated by driving the entire amount of the roll staple 80.

Returning to FIG. 9A, an inclined bottom portion 120 in which the bottom portion 111 is convex upward is provided at a position below the discharge port 25 of the clincher frame 21 in the main accommodation portion 116b. As shown in FIGS. 9B and 12A, the inclined bottom portion 120 includes a main inclined surface 121 and side inclined surfaces 122 and 122. As shown in FIG. 12A, in the front-rear direction, the main inclined surface 121 is highest on the front side of the first partition wall 117a and is inclined so as to decrease toward the rear, and its width gradually increases toward the rear. It is shaped like a fan with a wider width. The side inclined surface 122 is inclined from the left and right side edges of the main inclined surface 121 so as to decrease in the left-right direction.

Further, at the center of the first partition wall 117a in the left-right direction, a guide piece 130 that extends in the front-rear direction and has a chevron shape when viewed from the side is erected with the first partition wall 117a interposed therebetween. The guide piece 130 includes a front guide portion 131 that is lower toward the front from the position of the first partition wall 117a, and a rear guide portion 132 that is lower toward the rear from the position of the first partition wall 117a. When the dust box 110 interferes with the upper lock wall 108 when the dust box 110 is put into or taken out of the box housing portion 104, the guide portions 131 and 132 abut on the inclined portions of the guide portions 131 and 132 to generate a downward component force. It is generated to push down the first partition wall 117a and prevent the upper lock wall 108 from engaging with each other.

Further, as shown in FIGS. 9B and 12B, rail portions 111a and 111a, which are convex protrusions downwardly, are formed on the left and right sides of the bottom portion 111 of the dust box 110 so as to come into line contact with the left and right step portions 103a of the dust case 100. Is formed over substantially the entire length of the bottom portion 111 in the front-rear direction.

A grip 119 extending rearward from the upper end of the rear wall 113 is integrally formed at the rear end of the dust box 110. The rear wall 113 is provided to secure the supporting strength of the grip portion 119, and when the second partition wall 117b has sufficient strength, the grip portion 119 may be formed integrally with the second partition wall 117b. Good. Further, an arrow 119a indicating the pull-out direction is displayed on the upper surface of the grip portion 119.

(Operation of Embodiment 1)
Next, the operation of the electric stapler A according to the first embodiment will be described.
(When driving)
When the binding sheet is inserted into the gap S and the stapler unit 30 is driven, the extra length of the leg portion of the staple projecting through the binding sheet is cut off, and then the staple sheet is cut along the sheet. Can be folded.

Then, the cutting waste of the staple leg portion passes through the discharge path 24 of the clincher mechanism portion 20 and drops from the discharge port 25 into the accommodating portion 116 of the dust box 110 (see arrow YH1 in FIG. 9A). In this case, the relatively long cutting wastes mainly drop through the discharge path 24 toward the dust box 110.

On the other hand, since the cutting waste having a relatively short length has a light weight, it may not fall smoothly. In this case, since the clincher mechanism portion 20 rotates around the rear end portion thereof, there is a risk that cutting waste will fall through a gap other than the discharge port 25 in the clincher mechanism portion 20 due to centrifugal force (see arrow YH2 in FIG. 9A). ..
In the first embodiment, the dust case 100 covers the outside of the outlet 25, and the extension walls 101a and 102a cover the lower portion of the front end of the clincher mechanism 20 and the horizontal direction. Therefore, even if the cutting waste that has been subjected to the centrifugal force falls from the front end portion of the clincher mechanism portion 20 in the direction of the arrow YH2, it can be reliably received by the dust case 100 and prevented from scattering.

Further, the cutting chips dropped from the discharge port 25 into the dust box 110 drop to the inclined bottom portion 120 below the dust box 110, and move to the rear and side of the bottom portion 111 of the main accommodating portion 116b along the inclined surfaces 121 and 122. .. Therefore, it is possible to prevent the cutting waste from continuously accumulating in a mountain shape only at the position below the discharge port 25 and overflowing to the clincher mechanism portion 20 side.

That is, when the bottom part (111) of the dust box (110) has a flat shape over the entire surface, even if the clincher mechanism part 20 side is rotated up and down as in the first embodiment, cutting waste. Remains in a mountain shape directly below the discharge port 25, and the capacity of the accommodating portion (116) of the dust box (110) cannot be fully utilized. In this case, cutting wastes may overflow from the main accommodation portion 116b and enter the clincher mechanism portion 20 side, or may be scattered from the clincher mechanism portion 20 to the outside.

In the first embodiment, as described above, the cutting waste moves in the rearward and leftward and rightward directions along the main inclined surface 121 and the side inclined surface 122 of the inclined bottom portion 120, so that the cutting waste accumulates at one location. The cutting waste can be accumulated in the entire main accommodating portion 116b by preventing this.
In addition, since the main accommodating portion 116b secures a capacity capable of accommodating cutting waste generated when the entire amount of the roll staple 80 of the cartridge 70 is used, the cutting waste is mainly accommodated even when the roll staple is used up. It does not overflow from the portion 116b.

Further, when the stapler unit 30 is driven, since the clincher mechanism unit 20 is rotated, the dust box 110 is rotated together with the clincher mechanism unit 20. Therefore, the cutting debris in the main storage portion 116b of the dust box 110 is subjected to a centrifugal force in the forward direction, but since the first partition wall 117a is provided upright at the front end portion of the main storage portion 116b, the cutting debris is moved forward. Movement is regulated. As a result, it is possible to suppress cutting dust from overcoming the front wall 112 of the dust box 110 and scattering.

As described above, in the first embodiment, since the cutting waste can be prevented from scattering inside the stapler body 40, the cutting waste enters the drive control unit 50 and causes malfunction. Can be prevented.

(Vibration suppression effect)
In the electric stapler A according to the first embodiment, as will be described below, it is possible to suppress the vibration generated in the electric stapler A, thereby suppressing the scattering of cutting chips.
In the first embodiment, when the electric stapler A is driven and driven as described above, the clincher mechanism portion 20 which is relatively lighter than the driver mechanism portion 10 is rotated. Therefore, the vibration generated in the electric stapler A can be suppressed more than when the driver mechanism 10 having a relatively heavy weight is rotated.

Further, the vibration generated in the electric stapler A can also be suppressed by supporting the control unit housing box 60 housing the drive control unit 50 by the base plate 42b. That is, the drive control unit 50 includes the power supply unit 51 having a weight. When the drive control unit 50 is supported by the bottom plate 45 of the base portion 42, the drive control unit 50 is swung directly from the base portion 42, and a relatively large moment of inertia acts to increase vibration. On the other hand, in the first embodiment, since the drive control unit 50 is supported by the bottom portion 61 of the control unit housing box 60 that is suspended from the base plate 42b, the vibration transmitted to the drive control unit 50 is attenuated, and this drive The moment of inertia generated in the control unit 50 can be suppressed, and thus the vibration generated in the electric stapler A can be suppressed.

As described above, since the vibration generated in the electric stapler A can be suppressed, the scattering of cutting chips in the dust box 110 and the clincher mechanism portion 20 can be suppressed more than in the case where the vibration is relatively large. As a result, it is possible to prevent cutting debris from entering the drive control unit 50 or the like and causing malfunctions due to this. In addition, the necessary vibration suppressing function of the leg portion 41 can be reduced, so that the leg portion 41 can be downsized.

(Cutting debris entry suppression function by control unit housing box)
The drive control unit 50 is housed in a housing space 60a formed by the base plate 42b and the control unit housing box 60 so as to be surrounded by four circumferences in the horizontal direction and the upper and lower sides. Therefore, as compared with the case where the drive control unit 50 is simply provided on the bottom plate 45, the intrusion of cutting chips can be suppressed, and the occurrence of malfunction due to this can be suppressed.

Moreover, in the first embodiment, the control unit accommodating box 60 has the walls 62, 63, and 64 provided upright from the bottom 61, and the mating surface with the base 42 is the lower surface of the base plate 42b. For this reason, when the cutting waste enters the inside of the control unit housing box 60, it is necessary to enter from the highest position of the control unit housing box 60. Can be suppressed.

(When replenishing roll staples and discarding cutting waste)
When the roll staple 80 of the cartridge 70 is used up, it is necessary to replenish the cartridge 70 with new roll staple 80.
In this case, the rear door 44d is opened, the cartridge 70 is pulled out, and a new roll staple 80 is loaded and replenished in the empty loading chamber 71.

In this supplementation, when the user opens the rear door 44d, the cartridge 70 and the dust box 110 are vertically aligned and face outward on the rear surface of the stapler body 40, so that the dust box 110 can be visually recognized at the same time as the cartridge 70. You can As a result, the user is more likely to notice that the cutting waste accumulated in the dust box 110 is thrown away than when the dust box 110 is arranged on another surface different from the attachment/detachment position of the cartridge 70, and prompts the disposal of the cutting waste. It is possible to prevent the dust box 110 from overflowing with cutting chips.

In addition, in the first embodiment, the grip 119 of the dust box 110 is provided with the arrow 119a indicating the pull-out direction, and when the rear door 44d is opened as shown in FIG. 4, the arrow 119a faces the outside. Will be placed in. This can further promote the disposal of the cutting waste.
Further, by providing a display on the back side of the rear door 44d for explaining the procedure for replacing the cartridge 70 and the procedure for discarding the cutting waste in the dust box 110, it is promoted to further discard the cutting waste in the dust box 110, and the dust box 110 is cut. It is possible to suppress the overflow of dust.

Next, an operation of discarding the cutting waste accumulated in the dust box 110 will be described.
When discarding the cutting waste of the dust box 110, hold the grip portion 119 of the dust box 110 and pull it out backward. In this case, the bottom 111 of the dust box 110 is provided with rails 111a and 111a, the bottom 103 of the dust case 100 is provided with a recess 103b, and the bottom 111 of the dust box 110 and the bottom 103 of the dust case 100 are lined. The contact area is reduced as a contact. Therefore, it is possible to suppress frictional resistance at the time of pulling out the dust box 110 and smoothly pull out.

In addition, since the bottom 103 of the dust case 100 is provided with the recess 103b, the cutting debris that has fallen into the dust case 100 is stored in the recess 103b, and even when the cutting debris falls into the dust case 100, the cutting debris is collected. It is difficult to contact the bottom portion 103 of the. Therefore, the dust box 110 can be smoothly pulled out as compared with the case where the cutting waste contacts the bottom portion 103 of the dust box 110.

The cutting waste accumulated in the concave portion 103b can be discharged to the outside by raising the front end of the stapler body 40 and inclining the stapler main body 40 backward. Further, the cutting debris accumulated in the recess 103b is basically fine cutting debris that drops from the gap at the front end of the clincher mechanism unit 20, and in the first embodiment, the recess 103b is the life of the electric stapler A. Even if a period equivalent to the cycle elapses, a capacity is secured so that the cutting waste does not overflow.

Further, when the dust box 110 is pulled out, the first partition wall 117a may interfere with the upper lock wall 108, but in the first embodiment, the upper lock wall 108 has a rear guide portion 132 on the guide piece 130. Are contacted with each other, the first partition wall 117a is guided downward before contacting the upper lock wall 108. Therefore, the dust box 110 can be smoothly pulled out without being caught, unlike when the upper lock wall 108 and the first partition wall 117a interfere with each other.

On the contrary, when the dust box 110 is inserted into the box accommodating portion 104 of the dust case 100, the front guide portion 131 of the guide piece 130 contacts the upper lock wall 108 with an inclination angle and contacts the first lock wall 108. The 1 partition wall 117a is guided downward. Therefore, the contact between the upper lock wall 108 and the first partition wall 117a can be suppressed, and the insertion slide can be smoothly performed.

When the dust box 110 is inserted and the lock piece 108a and the lock groove 117c are fitted to each other, at the same time, the ribs 114a and 115a of the side walls 114 and 115 of the dust box 110 and the uneven portion 106 of the dust case 100 are formed. The fitting force acts due to the overcoming resistance and the fitting, and the fitting position is restricted to the accommodation position.

Further, when the front wall 112 of the dust box 110 is inserted until it abuts on the front end of the box housing portion 104, the lock piece 108a of the upper lock wall 108 causes the lock groove 117c of the upper end portion of the second partition wall 117b of the dust box 110. Inserted in. Therefore, the main accommodating portion 116b is in a hermetically sealed state with respect to the outside, and when the electric stapler A is vibrated by the operation of the electric stapler A or the electric stapler A is tilted during carrying, the cutting waste of the accommodating portion 116 is removed. It does not scatter out of the box door 105.

Moreover, since the discharge port 25 at the lower portion of the clincher mechanism unit 20 is covered by the discharge guide member 26, even if the electric stapler A is turned upside down, the cutting waste will be removed from the storage unit 116 of the dust box 110 from the clincher mechanism. Difficult to flow back to the part 20. Therefore, it is possible to suppress the subsequent scattering of the cutting chips as compared with the case where the cutting chips flow backward.

(Effect of Embodiment 1)
The effects of the electric stapler of the first embodiment are listed below.
1) The electric stapler according to the first embodiment is
A driver mechanism section 10 for driving staples toward the binding sheets,
A clincher mechanism unit 20 that cuts a leg portion of the staple penetrating the binding sheet by the driver mechanism unit 10 to a predetermined length and bends the staple leg portion along the back surface of the binding sheet.
A stapler body 40 that supports the driver mechanism section 10 and the clincher mechanism section 20 so as to be relatively close to and away from each other;
A cartridge 70 in which staples are loaded and which is detachably attached to the driver mechanism unit 10;
A dust case 100 and a dust box 110, which are detachably provided in the stapler body 40, for receiving the staple cutting dust generated by the cutting of the clincher mechanism 20, and the dust box 100.
Equipped with
The cartridge 70 and the dust box 110 are provided so as to face the same surface of the stapler body 40.
Therefore, when the staples are replenished in the cartridge 70, the dust box 110 is easily noticed at the same time, and the disposal of the cutting waste accumulated in the dust box 110 is promoted as compared with the case where the cartridge 70 and the dust box 110 are arranged on different surfaces. be able to. As a result, it is possible to prevent the cutting waste accumulated in the dust box 110 from scattering and causing a malfunction.

2) The electric stapler according to the first embodiment is
A dust case 100 forming a cutting waste container is provided so as to cover the discharge port 25 as a cutting waste discharging portion and the front end portion of the bottom surface of the clincher mechanism unit 20.
Therefore, as compared with a case where the discharge port 25 and the dust case 100 are separated from each other and the discharge port 25 is not covered by the dust case 100, it is further suppressed that the cutting waste accumulated in the dust box 110 is scattered to the outside. be able to.

3) The electric stapler according to the first embodiment is
The stapler body 40 includes a drive control unit 50 that operates the driver mechanism unit 10 and the clincher mechanism unit 20,
The drive control unit 50 is supported by a control unit housing box 60 as a cover member,
The control unit accommodating box 60 is characterized in that it is attached to the base plate 42b by forming an accommodating space 60a surrounding and enclosing the drive control unit 50 between the control unit accommodating box 60 and a base plate 42b as a plate member constituting the stapler body 40. ..
Therefore, the intrusion of cutting chips into the drive control unit 50 can be further suppressed, and the occurrence of malfunction due to the intrusion of cutting chips can be suppressed.
In addition, since the drive control unit 50 including the heavy power supply unit 51 is supported by the base plate 42b that forms the upper surface of the base unit 42 via the control unit housing box 60, it is compared with the case where it is supported by the bottom plate 45 below. Thus, the moment of inertia acting on the drive control unit 50 can be suppressed, and the vibration of the stapler body 40 can be suppressed. As a result, it is possible to prevent cutting debris from entering the drive control unit 50 or the like and causing malfunctions due to this.

4) The electric stapler according to the first embodiment is
The driver mechanism unit 10 is fixed to the stapler body 40, and the clincher mechanism unit 20 is rotatably supported by the stapler body 40.
Therefore, of the driver mechanism unit 10 and the clincher mechanism unit 20, the relatively lightweight clincher mechanism unit 20 is rotated, so that the generated moment of inertia is suppressed as compared with the case where the driver mechanism unit 10 is rotated. be able to. As a result, the vibration generated in the stapler body 40 can be suppressed, and the scattering of cutting chips due to this vibration can be suppressed.

5) The electric stapler of the first embodiment is
The cutting debris storage unit includes a dust case 100 that covers the bottom surface of the clincher mechanism unit 20 and is fixed to the clincher mechanism unit 20, and an accommodating unit 116 that stores cutting debris, with respect to the clincher mechanism unit 20 and the dust case 100. It is characterized by comprising a removable dust box 110 and.
Therefore, the dust box 110 that can be attached to and detached from the stapler body 40 receives the main cutting waste in the accommodating portion 116, and maintains the state in which the bottom surface of the clincher mechanism portion 20 is reliably covered by the dust case 100 to make fine cutting. It is possible to reliably receive dust and prevent scattering.

6) The electric stapler of the first embodiment is
It is characterized in that extension walls 101a and 102a are integrally formed in the dust case 100 to cover the lower front end of the clincher mechanism 20.
Therefore, when the cutting waste drops from the front end of the clincher mechanism unit 20 due to centrifugal force and gravity when the clincher mechanism unit 20 rotates, it can be reliably received by the dust case 100 and prevented from scattering.

7) The electric stapler according to the first embodiment is
A driver mechanism section 10 for driving staples toward the binding sheets,
A clincher mechanism unit 20 that cuts a leg portion of the staple penetrating the binding sheets by the driver mechanism unit 10 to a predetermined length and bends the staple legs along the back surface of the binding sheet
A dust box 110 having a storage portion 116 for receiving and storing cutting waste falling from the clincher mechanism portion 20;
An inclined bottom portion 120 having inclined surfaces 121, 122 which are provided at a position where the cutting waste falls on the bottom portion of the housing portion 116 and which decrease in the circumferential direction of the housing portion 116 from the dropping position;
It is characterized by including.
Therefore, it is possible to move the cutting debris that has fallen to the bottom of the housing 116 of the dust box 110 to a wide range of the bottom, and to prevent the cutting debris from accumulating in a mountain shape and overflowing and scattering outside the housing 116.

8) The electric stapler according to the first embodiment is
The slanted bottom portion 120 includes a main slanted surface 121 that slants in the longitudinal direction of the dust box, and side slanted surfaces 122 that slant outward in the width direction from both ends in the width direction of the main slanted surface. And
Therefore, the cutting waste that has fallen on the inclined bottom portion 120 is guided in the longitudinal direction and the width direction of the dust box 110, and can be dispersed and accumulated more efficiently than either one of the inclinations.
Further, the main inclined surface 121 is characterized in that it is formed in a fan shape whose width increases as the inclination decreases.
Therefore, in the main inclined surface 121, the cutting wastes are more dispersed on the bottom of the accommodating portion 116 as compared with those formed to have a constant width.

9) The electric stapler of the first embodiment is
The driver mechanism unit 10 is fixed to the stapler body 40, and the clincher mechanism unit 20 is rotatably supported by the stapler body 40 at a position below the driver mechanism unit 10,
The dust box 110 is attached to the bottom of the clincher mechanism 20,
The accommodating part 116 is a main accommodating part 116b as a first accommodating part including the inclined bottom part 120, and a second accommodating part that is located farther from the rotation center of the clincher mechanism part 20 than the main accommodating part 116b. The first partition wall 117a, which is divided into a front housing portion 116a serving as a housing portion of the above, is provided in the housing portion 116.
Therefore, when the dust box 110 rotates together with the clincher mechanism portion 20, the first partition wall 117a restricts the cutting waste from moving forward due to the centrifugal force. As a result, it is possible to prevent the cutting dust from overcoming the front wall 112 of the dust box 110 and scattering into the dust case 100.

10) The electric stapler according to the first embodiment is
A dust case 100 attached to the bottom of the clincher mechanism 20,
A box accommodating portion 104 that is formed between the dust case 100 and the clincher mechanism portion 20 and is capable of detachably accommodating the dust box 110;
The dust box 110 is provided with a second partition wall 117b that forms a wall on the rotation center side of the housing portion 116,
The dust case 100 is provided with an upper lock wall 108 that is continuous with the second partition wall 117b and the bottom of the clincher mechanism unit 20 when the dust box 110 is housed in the box housing unit 104 and that can partition the housing unit 116 from the outside. The
Over the entire width of the upper lock wall 108 and the second partition wall 117b, when the dust box 110 is accommodated, the accommodating portion 116 can be blocked from the outside, and the lock piece 108a as a fitting structure that fits in the attachment/detachment direction of the dust box 110 and It is characterized in that a lock groove 117c is provided.
Therefore, due to the fitting structure of the lock piece 108a and the lock groove 117c, the accommodating portion 116 is sealed from the outside, so that the accommodating portion 116 is not only vibrated by the operation of the electric stapler A but also when the electric stapler A falls. The large amount of cutting waste does not scatter from the box entrance/exit 105 to the outside.

11) The electric stapler of the first embodiment is
The first partition wall 117a is provided with a guide piece 130 that extends in the attachment/detachment direction of the dust box 110 and is inclined in a direction in which the first partition wall 117a is pushed down with respect to the upper lock wall 108 during attachment/detachment. Is characterized by.
Therefore, the first partition wall 117a is less likely to be engaged with the upper lock wall 108, and the dust box 110 can be smoothly slid when attaching and detaching.

12) The electric stapler according to the first embodiment is
The capacity of the main accommodating portion 116b is set to a capacity capable of accommodating cutting waste generated when the entire amount of the roll staple 80 of the cartridge 70 is used.
Therefore, even when one roll staple 80 is used up, cutting waste does not overflow from the main accommodating portion 116b.

13) The electric stapler of the first embodiment is
The bottom part 103 of the dust case 100 is characterized by being provided with a recess 103b which is recessed downward.
Therefore, if the cutting debris leaks from the dust box 110 and falls to the bottom 103, the cutting debris located in the recess 103b is less likely to contact the bottom of the dust box 110, and the frictional resistance when the dust box 110 is attached or detached is suppressed. , The attachment and detachment operation can be performed smoothly.

14) The electric stapler of the first embodiment is
A rail portion 11a is provided on the bottom portion 111 of the dust box 110 as a convex portion that makes a point or line contact between the top surface of the bottom portion 103 of the dust case 100 and the bottom surface of the bottom portion 111 of the dust box 110.
Therefore, it is possible to suppress frictional resistance when the dust box 110 is attached and detached and to smoothly attach and detach it.

Although the present invention has been described above based on the embodiment, the specific configuration is not limited to this embodiment, and does not depart from the gist of the invention according to each claim of the claims. , Design changes and additions are allowed. Further, when there is a term such as “and the like,” it is used in the meaning of including the equivalent. In addition, when there are terms such as “almost”, “about”, and “degree”, they are used in the sense of including a range and accuracy that are commonly accepted.

For example, in the embodiment, the table-type electric stapler is shown, but the electric stapler is not limited to this, and for example, a copy machine or a sheet to be pressure-treated on a sheet processed by the copy machine is used. You may apply to what was mounted in the processing apparatus etc.

Further, in the embodiment, the driver mechanism portion of the stapler unit is fixed to the stapler body, but the invention is not limited to this, and the driver mechanism portion is rotatably supported by the stapler body, and a clincher unit is provided. The mechanism section may be fixed to the stapler body.

Further, in the embodiment, the example in which the cartridge and the dust box are respectively provided at the rear portion of the stapler body has been described, but the positions thereof are not limited to this, and the cartridge and the dust box may be disposed at other portions such as side portions, for example. May be. Therefore, the moving direction of the cartridge and the dust box at the time of attachment/detachment to/from each mechanism unit may be different from the front-rear direction accordingly.
Furthermore, in the embodiment, the example in which the cartridge and the dust box are covered by the rear door has been shown, but the present invention is not limited to this, and the rear door may be omitted and the cartridge and the dust box may be arranged in an exposed state.

Further, in the embodiment, the cartridge in which the roll staples are loaded has been shown, but the shape of the staples is not limited to this, and a cartridge in which a plurality of thin plate-shaped staple sheets are vertically stacked and used is used. Good.

Further, in the embodiment, the control unit housing box for housing the substrate or the like is shown as a box-shaped one having an open upper part, and is attached so as to be hung from the lower surface of the base plate to accommodate the control circuit. However, the present invention is not limited to this. For example, all or part of the side wall portion of the circuit accommodating chamber may be provided on the base plate (stapler main body) side.

Further, in the embodiment, the dust case is formed in a box shape so that the dust case supporting the dust box also receives the cutting dust, but the present invention is not limited to this, and the cutting dust is received only by the dust box. You may In this case, for supporting the dust box by the clincher mechanism, for example, a slide guide rail for slidably supporting the dust box is provided on the clincher frame side of the clincher mechanism, and a slider formed on the dust box side is mounted on the slide guide rail. The structure may be slid along.

Further, in the embodiment, as the inclined bottom portion, the one provided with the main inclined surface in the front-rear direction and the side inclined surface in the left-right (width) direction is shown, but the inclined bottom portion has the inclined surface in the circumferential direction. If so, the shape is not limited to this. For example, a shape having a curved slope other than a polygonal slope such as a cone may be used. Further, the number of slopes may be at least one, and the inclination direction is not limited to the front-rear direction or the left-right direction.

Further, in the embodiment, the example in which the rail portion is formed in the dust box is shown as the convex portion that makes the bottom portion of the dust case and the bottom portion of the dust box into point or line contact, but the present invention is not limited to this. For example, the rail portion may be formed on the dust case side. Further, the convex portion is not limited to the rail, and a plurality of protrusions may be provided so that both of them are in point contact with each other at a plurality of points.

10 Driver mechanism part 20 Clincher mechanism part 25 Discharge port (discharging part of cutting waste)
40 stapler body 42b base plate (plate member)
50 Drive control unit 60 Control unit housing box (cover member)
60a Storage space 70 Cartridge 100 Dust case (cutting waste storage part)
110 Dust Box (Cutting Waste Storage)
A electric stapler

Claims (6)

A driver mechanism that drives the staples toward the binding paper,
A clincher mechanism unit that cuts the leg portion of the staple penetrating the binding sheets by the driver mechanism unit to a predetermined length and bends the leg portions along the back surface of the binding sheet.
A stapler body that supports the driver mechanism portion and the clincher mechanism portion so as to be relatively close to and away from each other;
A cartridge in which the staple is loaded and which is detachably attached to the driver mechanism section;
A cutting waste accommodating portion that receives cutting waste of the staple generated by the cutting of the clincher mechanism portion and is detachably provided in the stapler body,
Equipped with
And the cartridge and the cutting scrap housing portion, provided we are facing the same surface of the stapler body,
The stapler body includes a drive control unit that operates the driver mechanism unit and the clincher mechanism unit,
The drive control unit is supported by a cover member,
The electric stapler , wherein the cover member is attached to the plate member by forming an accommodation space that surrounds the drive control unit and covers the plate member that constitutes the stapler body . The electric stapler according to claim 1,
The electric stapler, wherein the cutting waste storage portion is provided so as to cover a discharge portion of the cutting waste on a bottom surface of the clincher mechanism portion. The electric stapler according to claim 1,
An electric stapler, wherein the driver mechanism section is fixed to the stapler body, and the clincher mechanism section is rotatably supported by the stapler body. A driver mechanism that drives the staples toward the binding paper,
A clincher mechanism unit that cuts the leg portion of the staple penetrating the binding sheets by the driver mechanism unit to a predetermined length and bends the leg portions along the back surface of the binding sheet.
A stapler body that supports the driver mechanism portion and the clincher mechanism portion so as to be relatively close to and away from each other;
A cartridge in which the staple is loaded and which is detachably attached to the driver mechanism section;
A cutting waste accommodating portion that receives cutting waste of the staple generated by the cutting of the clincher mechanism portion and is detachably provided in the stapler body,
Equipped with
An electric stapler , wherein an inlet/outlet for inserting/removing the cartridge and an inlet/outlet for inserting/removing the cutting waste accommodating portion are vertically arranged in the stapler body . The electric stapler according to claim 4,
An inlet/outlet for inserting/removing the cartridge and an inlet/outlet for inserting/removing the cutting waste housing portion are provided on the same surface of the stapler body, and the cartridge and the cutting waste housing portion are attached/detached from the same surface side of the stapler body. An electric stapler characterized by being formed so as to allow The electric stapler according to claim 4 or 5,
The electric stapler, wherein the cutting waste accommodating portion is provided below the cartridge.