JP3111879B2 - Electric stapler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric stapler for detachably mounting a cartridge in which sheet staples are stacked and housed in an electric stapler body.

[0002]

2. Description of the Related Art Conventionally, a magazine portion rotatably provided on a base frame, a cartridge mounted on the magazine portion and laminating and storing sheet staples, and a sheet staple in the cartridge are sent out to a punching portion. An electric motor including a feed mechanism, a driver that reciprocates the staples of the fed sheet staples and drives the staples out of the hitting portion, and a table provided with a clincher that bends the tip of the hit staples to flat clinch. Stapler is known.

[0003] In such an electric stapler, a table is fixed, and a magazine portion operates up and down.

[0004] As shown in FIG.
A cartridge main body Ka, a feed passage portion J provided at a lower portion of the side wall Kb of the main body Ka and forming a feed passage T extending forward from the lower portion, and a punching portion U provided at a distal end portion of the feed passage portion J. Have. A projection F is provided at the rear of the cartridge body Ka. The projection F has a lower inclined surface Fa and an upper inclined surface Fb.

On the other hand, in the magazine portion N, a cartridge K
And a contact surface Nd for contacting the lower surface Kc of the cartridge body Ka.

A shaft I urged forward by a spring V is provided at the rear of the magazine N.
The shaft I is engaged with the inclined surface Fb of the projection F of the cartridge K, thereby fixing the cartridge K to the magazine portion N.

To mount the cartridge K in the magazine N, the cartridge K is inserted from above the magazine N, and the tip of the ejection portion U is inserted into the ejection chamber NB of the magazine N. Then, the rear part of the cartridge K is pushed downward. When this rear portion is pushed downward, the axis I moves rearward against the spring V by the lower inclined surface Fa of the projection F. When the rear portion is further pushed downward, as shown in FIG. The lower surface Kc of the main body Ka is in contact with the contact surface Nd of the magazine N, and the axis I is the top Fc of the projection F.
, The cartridge K is engaged with the upper inclined surface Fb of the projection F and the cartridge K is fixed to the magazine portion N.

To remove the cartridge K from the magazine N, the rear of the cartridge K is lifted up. When the rear portion is lifted, the axis I moves rearward against the urging force of the spring V by the upper inclined surface Fb of the projection F, and when the axis I exceeds the top Fc of the projection F, the axis of the spring V The axis I presses the lower inclined surface Fa of the projection F by the urging force. Due to the pressing of the lower inclined surface Fa by the axis I, the cartridge K is sent out slightly upward and detached from the magazine portion N.

[0009]

However, in such an electric stapler, since the magazine portion N operates up and down, it is necessary to firmly fix the cartridge K to the magazine portion N. . For this reason, a spring V having a strong elastic force has to be used.

For this reason, the cartridge K is inserted into the magazine N
A large force is required when mounting on or removing from the magazine portion N, and there is a problem that the mounting and dismounting becomes extremely difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide an electric stapler in which a cartridge can be firmly fixed to a stapler main body and can be easily mounted and removed. It is in.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a cartridge in which sheet staples are stacked and stored, an electric stapler body to which the cartridge is removably mounted, and an electric stapler body mounted to the electric stapler body. A first elastic member that urges the cartridge in the detaching direction, and the cartridge is mounted at the mounting position by inserting the cartridge into the electric stapler body against the urging force of the first elastic member, and the cartridge is mounted. An electric stapler for pushing a cartridge out of the mounting position by a biasing force of a first elastic member when detaching the cartridge, wherein a locking portion is provided on the cartridge, and the cartridge is engaged with the locking portion to move the cartridge into the mounting position. The electric stapler is provided with a lever fixed to the main body.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electric stapler according to the present invention will be described below with reference to the drawings.

1 and 2, reference numeral 1 denotes an electric stapler which is attached to, for example, a copying machine or the like. The electric stapler 1 is formed by a cartridge defined by a stapler main body 10 and a magazine 30 provided in the stapler main body 10. And a cartridge 700 detachably mounted in the chamber 25.

The stapler body 10 includes a reciprocating table 100, a table mechanism 150 for reciprocating the table 100, and a feed mechanism (not shown) for feeding the sheet staples S stacked in the cartridge 700 to the ejection section 720. ), A launching mechanism 300 for launching the staple S from the launching section 720, a clincher mechanism (not shown) for bending the tip of the launched staple,
A drive mechanism (not shown) for driving each of the mechanisms 150, 200, and 300 is provided. In addition, the stapler body 10
Is provided on the front surface thereof with an actuator 2 for detecting whether or not there is a staple S1 formed in a U-shape in a gap 725 of the embossing portion 720. Further, based on the movement of the actuator 2, the staple 2 is provided. A microswitch (not shown) for detecting the presence or absence of S1 is provided.
This microswitch is mounted on the substrate 3.

[Table mechanism 150] Table mechanism 15
Reference numeral 0 denotes a link shaft 151 inserted vertically into the long holes 18 of the side plates 12 and 13 of the frame 14 and a link shaft 1
A link member 152 that rotates around the fulcrum 51, a table cam 511, and a roller 153 that is in contact with the peripheral surface of the table cam 511 and that is rotatably attached to an upper portion (in FIG. 1) of the link member 152. It has. The link member 152 is urged counterclockwise (in FIG. 1) by a spring (not shown) so that the roller 153 always contacts the peripheral surface of the table cam 511.

As shown in FIG. 1, the table cam 511 has an increasing portion 511A whose diameter increases when rotating counterclockwise, and a large-diameter portion where the diameter becomes maximum and becomes constant. 511B, a decreasing portion 511C in which the diameter decreases, and a small diameter portion 511D in which the diameter is minimized.

The link member 152 is composed of side plates 152A and 152B that fix and hold both ends of a link shaft 151, and a connecting plate 15 that connects the lower ends of the side plates 152A and 152B.
2C, the lower side plate portions 152A, 152B from the link shaft 151 form arms 152a, 152b extending diagonally forward to the table 100 side, and the arm portions 152a, 152b extend along the arm portions. Elongated hole 1
54 are provided. The table 100 is inserted into the long hole 154.
1 is rotatably inserted, and the link member 152 is rotated clockwise about the link shaft 151 (FIG. 1).
The table 100 rises in the direction of the arrow by the rotation of ().

The table 100 has a roller 153
Is in the home position (initial position) shown in FIG. 1 when the roller 153 is in contact with the peripheral surface of the small diameter portion 511 </ b> D of the table cam 511, and the roller 153 is
When the roller 153 comes into contact with the peripheral surface of the large diameter portion 511B, the roller 153 comes into contact with the lower surface 720A of the embossed portion 720, and the roller 153 comes into contact with the peripheral surface of the reduced portion 511C. It descends when it comes into contact with.

The link shaft 151 is urged upward by a spring (not shown), and moves downward when the spell sheet T is thick so as not to hinder the rotation of the table cam 511. . In the table 100,
Clinchers 401 and 402 are provided, and the clinchers 401 and 402 are rotated by a clincher mechanism (not shown) to clinch the leading end of the sheet staple.

[Launching Mechanism 300] Launching Mechanism 300
As shown in FIG. 2, is composed of a launch link 310 and the like, and the launch link 310 rotates about a shaft 314 as a fulcrum in conjunction with a drive mechanism (not shown). The rotation of the launch link 310 causes the driver shaft 317 to rotate.
Reciprocate along the long hole 37.

A forming plate 320 is mounted on the driver shaft 317, and a driver 321 is mounted on the forming plate 320. And
The forming plate 320 and the driver 321 reciprocate with the driver shaft 317.

The forming plate 320 forms staples in a U-shape, and the driver 321 drives out staples formed in a U-shape.

[Cartridge 700] Cartridge 70
Reference numeral 0 denotes a cartridge main body 701, a delivery section 710 extending forward (leftward in FIGS. 3 and 4) from the main body 701, as shown in FIGS.
And an embossing section 720 provided at the front end of the ten. The feeding section 710 is formed with a feeding path 711 for feeding sheet staples to the ejection section 720.

The cartridge body 701 is provided with a holder 702 that can move up and down, a spring 703 that urges the holder 702 upward, and the like. The holder 702 is wrapped by an inner cartridge 750. The held sheet staple S is held.

Both side walls 701B of the cartridge body 701
Are provided with a locking portion 740 having a locking surface 740A orthogonal to the insertion / removal direction of the cartridge 700, and a boss 741.

A staple holder 707 is rotatably provided on the cartridge main body 701 as shown by a broken line, and a pressing portion 707A of the staple holder 707 and a connecting portion 755 of the inner cartridge 750 are provided.
Thus, the surface of the stacked uppermost sheet staple S is pressed. Inner cartridge 750
The sheet staple S in the inner cartridge 75
0 and the cartridge body 7 from the direction of the arrow shown in FIG.
01. At this time, the stapling holder 707 is rotated to the position indicated by the broken line.

The embossing section 720 includes a face plate 721.
And a pusher 731 held by a holding member 730 provided on the lower surface of the staple guide 711.

Side plates 722 are continuously formed on both sides of the face plate 721, and the side plates 722 are
30 is pivotally supported by a shaft 715, and the side plate portion 722 is rotatable as shown by a broken line. This is to remove the staples clogging the gap 725 of the embossing section 720 by rotating the side plate section 722 to move the face plate 721 to the position indicated by the broken line.

The upper surface 701A of the cartridge body 701 and the upper surface 710A of the delivery portion 710 are set to be flush with each other, and further, the upper surface 722a of the bent piece 722A provided on the side plate portion 722 of the face plate 721
The upper surface 707a of the pressing portion 707A of the staple holder 707 and the upper surface 708a of the projection 708 formed on the upper side wall of the cartridge main body 701 are set to be on the same plane.

The upper surface 722a of the bent piece 722A, the upper surface 707a of the holding portion 707A, and the upper surface 708a of the projection 708
Abuts against the lower surfaces of the bottom walls 31A and 31B of the magazine 30 (see FIG. 2), and the bottom surface 701C of the cartridge body 701 is connected to the bottom plate 1 of the frame 14 of the stapler body 10.
1 is in contact with the upper surface. Then, the cartridge 700 is inserted into the cartridge chamber 25 as shown in FIG. 2 by inserting the cartridge 700 from the rear of the stapler body 10.

As shown in FIG. 5, a cartridge guide 760 is provided in the cartridge chamber 25 so as to be movable in the front-rear direction.

As shown in FIG. 6, the cartridge guide 760 has side plates 763 extending rearward from both ends of a front plate 762 provided with a spring receiving portion 761.
3 is provided with a holding piece 766 having a projection 766A for holding the cartridge body 701. A projection 764 is provided on the bottom of the spring receiving portion 761, and the projection 764 is inserted into a guide groove 11 </ b> M provided on the bottom plate 11 of the frame 14. Also, the bottom plate 1 of the frame 14
1 is provided with a locking portion 11K.
K and spring receiving portion 76 of cartridge guide 760
A spring (first elastic member) 765 is provided between the cartridge guide 760 and the cartridge guide 760 to urge the cartridge guide 760 backward.

As shown in FIGS. 5, 7, and 8, a stopper 770, a main lever (lever) 780, a sub-lever 790, and a leaf spring (second elastic member) 795 are arranged in the cartridge chamber 25 and the like. Has been established.

As shown in FIG. 9, the stopper 770 has a plate-like stopper member 771 extending vertically and having upper and lower ends 771A and 771B formed in an R shape, and a shaft 772 on the back surface of the stopper member 771. And a locking member 773 connected via the.

The locking member 773 is a bifurcated leg 7
73A and 773B.
The boss 74 provided on the cartridge main body 701 is located between 3B.
1 is formed, and an engaging recess 773C is formed.
The lower end 773a of A is located above the boss 741, and the lower end 773b of the leg 773B is located below the boss 741.

The locking member 773 is disposed inside the lower side wall 34 of the magazine 30, and the stopper member 771 is disposed outside the lower side wall 34, and the shaft 772 is connected to the lower side wall 3 of the magazine 30.
4, and is rotatably supported by the rotary member 4. The stopper 770 rotates about the shaft 772 as a fulcrum.

The main lever 780 is shown in FIGS.
As shown in FIG. 1, side plate portions 782 are provided at both ends of the connecting member 781.
The side plate 782 is provided with a projection 783 projecting forward (left in FIG. 10), and the side plate 782 is provided with an engagement portion 784 inside. The engaging surface 740 of the engaging portion 740 provided on the cartridge body 701 is provided on the engaging portion 784.
A flat engagement surface 784A that engages with A is formed.

An engagement hole 782A is provided in the side plate portion 782, and a shaft 785 (see FIG. 5) provided on the lower side wall 34 of the magazine 30 is inserted into the engagement hole 782A, and the side plate portion 782 is connected to the magazine. 30 is disposed between the lower side wall 34 and the side plates 12 and 13 of the frame 14. Then, the main lever 780 rotates around the shaft 785 as a fulcrum. The shaft 785 is set so as to be located in a direction orthogonal to the locking surface 740A of the locking portion 740 provided on the cartridge main body 701 (see FIG. 14).

Outside the lower side wall 34 of the magazine 30,
A sub-lever 790 that can move in the front-rear direction is attached, a rear portion 790A of the sub-lever 790 comes into contact with a projection 783 of the main lever 780, and a tip portion 790B of the sub-lever 790 is located above the shaft portion 772 of the stopper member 771 at a side surface 771a. Facing.

The leaf spring 795 is connected to the bottom plate 11 of the frame 14.
The first plate spring 795 is attached to the inside of the side plates 12 and 13, and the first plate spring 795 A extends rearward and obliquely upward and the second plate spring extends obliquely downward from the rear portion of the plate spring 795. 795B. The boundary between the first leaf spring portion 795A and the second leaf spring portion 795B is a top 795C.

The cartridge 700 is placed in the cartridge chamber 25.
Is not attached, the second leaf spring portion 795B is in contact with the lower portion 771B of the stopper member 771 and urges the stopper 770 counterclockwise with the shaft portion 772 as a fulcrum. 12 is restricted so as not to rotate counterclockwise from the position shown in FIG. In this state, the cartridge guide 760 is located at the position shown in FIG.

[Mounting of Cartridge 700] To mount the cartridge 700, first, as shown in FIG. 12, the cartridge 700 is inserted into the cartridge chamber 25 from the rear of the stapler body 10. By this insertion, the cartridge main body 701 is held by the holding pieces 7 of the cartridge guide 760.
It is sandwiched by 66 projections 766A.

Then, the cartridge 700 is pushed forward together with the cartridge guide 760 against the urging force of the spring 765, and when the cartridge 700 is inserted to the position shown in FIG. 13, the boss 741 of the cartridge 700 is locked by the locking member 773. Is engaged with the engaging recess 773C.

When the cartridge 700 is further inserted, the lower portion 771B of the stopper member 771 passes over the top 795C of the leaf spring 795, and
The lower plate 771 of the stopper member 771
B, the stopper member 771 rotates clockwise by the urging force of the leaf spring portion 795A. By rotating the stopper member 771 clockwise, as shown in FIG. 14, the boss 741 engages with the engaging recess 773C of the locking member 773.
, The cartridge 700 is further pushed forward and moved to the mounting position.

The stopper member 771 moves the sub-lever 790 backward by turning clockwise.
The rearward movement of the sub lever 790 causes the main lever 780 to rotate clockwise.

As shown in FIG. 15, when the main lever 780 is further manually rotated clockwise, the engaging surface 784A of the engaging portion 784 of the main lever 780 is moved to the engaging portion provided on the cartridge body 701. 740 locking surface 74
Engage with 0A. With this engagement, the cartridge 700
Is locked in the mounting position.

Then, the locking surface 740A of the locking portion 740 is perpendicular to the mounting / removing direction of the cartridge 700 and the shaft 78 of the main lever 780 in a direction perpendicular to the locking surface 740.
5, the cartridge 7 has a strong impact.
Even if 00 moves backward, the engaging surface 784A of the engaging portion 784 of the main lever 780 does not come off from the engaging surface 740A of the engaging portion 740.

That is, even if the elastic force of the leaf spring 795 is weak, the cartridge 700 does not come off the mounting position.

The removal of the cartridge 700 is shown in FIG.
Is performed by rotating the main lever 780 shown in FIG. That is, when the main lever 780 is rotated counterclockwise, the engaging surface 784A of the engaging portion 784 is locked by the locking surface 740A of the locking portion 740 of the cartridge body 701.
And the projection 783 of the main lever 780
Abuts on the rear portion 790A of the sub-lever 790 to move the sub-lever 790 forward.

The forward movement of the sub-lever 790 causes the distal end portion 790B of the sub-lever 790 to abut on the side surface 771a of the stopper member 771, whereby the stopper member 771 rotates counterclockwise.

When the stopper member 771 rotates counterclockwise, the lower portion 771B of the stopper member 771
Press down the leaf spring part 795A of the
71B passes over the top 795C of the leaf spring 795 and contacts the leaf spring 795B. When the leaf spring portion 795B comes into contact with the lower portion 771B of the stopper member 771, the stopper member 771 further rotates counterclockwise by the urging force of the leaf spring 795 and engages with the engaging recess 773C of the locking member 773. Boss 74 of combined cartridge 700
1 is disengaged from the engagement recess 772C.

Then, the cartridge 700 is pushed backward from the mounting position by the urging force of the spring 765, and the cartridge 700 can be removed from the stapler body 10.

The elastic force of the leaf spring 795 is set to be larger than the elastic force of the spring 765.
Since the cartridge 700 is not fixed to the mounting position by the elastic force of 95, the elastic force of the leaf spring 795 can be set small. For this reason, the stopper member 7
The lower part 771B of the stopper member 771
The force for pushing down the leaf spring portions 795A and 795B may be small, and as a result, mounting and dismounting of the cartridge 700 can be easily performed.

Further, the distance from the shaft 785 of the main lever 780 to the projection 783 and the distance from the shaft 785 to the engagement surface 784A
From the shaft 785 to the upper part 78 of the side plate part 782
By setting the distance to 2B to be long, the turning operation of the main lever 780 is facilitated by the leverage principle.

[Second Embodiment] In FIGS. 16 and 17, reference numeral 745 denotes both side walls 70 of the cartridge main body 701.
Reference numeral 800 denotes a locking portion provided in 1B, and a lever provided outside the lower side wall 34 of the magazine 30. The lever 800 is provided with a hook-shaped engaging portion 801 that engages with the locking portion 745 and a protruding portion 802 that protrudes upward. In addition, the rear of the engaging portion 801 is directed downward and the locking portion 74 is provided.
5 is formed with an inclined surface 801B. Also,
The lever 800 is rotatable around a shaft 807 pivotally supported by the lower side wall 34 of the magazine 30, and is provided with a spring 8.
03 is always urged clockwise,
It is regulated so as not to rotate clockwise from the position shown in FIG.

Outside the lower side wall 34 of the magazine 30,
A button (release member) 805 is provided so as to be movable in the front-rear direction, and an operation unit 805A of the button 805 projects outside the stapler body 10. The tip 805B of the button 805 is in contact with the protrusion 802 of the lever 800.

When the cartridge 700 is mounted, the cartridge 700 is inserted into the cartridge chamber 25 from the rear of the stapler body 10 in the same manner as described above (see FIG. 16).
By this insertion, the cartridge main body 701 is held by the projection 766A of the holding piece 766 of the cartridge guide 760.

When the cartridge 700 is pushed forward together with the cartridge guide 760 against the urging force of the spring 765, the engaging portion 801 of the lever 800
The locking portion 745 contacts the inclined surface 801B of the
0 rotates counterclockwise against the urging force of the spring 803 as shown in FIG. When the cartridge 700 is further pushed forward and moved to the mounting position, FIG.
As shown in FIG. 9, the locking portion 745 is
01 is engaged.

By the engagement of the engaging portion 801 of the lever 800, the cartridge 700 is fixed at the mounting position. Then, the cartridge 700 is strongly impacted.
Is moving backward, the engaging portion 8 of the lever 800
01 has a hook shape so that the cartridge 700
The cartridge 700 does not come off from the locking portion 745 of the stapler, and the cartridge 700 remains fixed at the mounting position of the stapler body 10.

As described above, since the cartridge 700 is not fixed to the mounting position by using the urging force of the spring 765, the cartridge 700 can be fixed to the mounting position even if the urging force of the spring 765 is set small. Therefore, mounting of the cartridge 700 can be easily performed.

The removal of the cartridge 700 is performed by pressing the operation section 805A of the button 805. That is, when the operation unit 805A of the button 805 is pressed, FIG.
As shown in (5), since the tip 805B of the button 805 is in contact with the protrusion 802 of the lever 800, the lever 800 rotates counterclockwise against the urging force of the spring 803. By this rotation, the engaging surface 801A of the engaging portion 801 of the lever 800 is disengaged from the engaging portion 745 of the cartridge 700, and the cartridge 700 is pushed backward from the mounting position by the urging force of the spring 765. 700 stapler body 1
0 can be removed.

As described above, the cartridge 700 is not fixed to the mounting position by the elastic force of the spring 803, but the engaging portion 745 is engaged with the engaging surface 801 A of the engaging portion 801 of the lever 800 to mount the cartridge 700. Since the stapler is fixed to the mounting position of the stapler main body 10, the elastic force of the spring 803 can be set small. Therefore, the pressing force of the button 805 on the operation unit 805A is small, and the cartridge 700 can be easily removed.

In the second embodiment, the cartridge 700
The cartridge 700 can be fixed at the mounting position only by inserting the cartridge, so that the operation is very simple.

[0065]

As described above, according to the present invention, the cartridge can be firmly fixed to the stapler body, and the cartridge can be easily mounted and removed.

[Brief description of the drawings]

FIG. 1 is a right side view showing an appearance of an electric stapler.

FIG. 2 is a sectional view of the electric stapler shown in FIG.

FIG. 3 is a side view showing the appearance of the cartridge.

FIG. 4 is a plan view of the cartridge of FIG.

FIG. 5 is an explanatory view showing a cartridge attaching / detaching mechanism.

FIG. 6 is a perspective view showing a cartridge guide.

FIG. 7 is a plan sectional view showing a cartridge chamber.

FIG. 8 is a side sectional view showing a cartridge chamber.

FIG. 9A is a perspective view showing a stopper. (B) It is a side view of a stopper. (C) It is a front view of a stopper. (D) It is a rear view of a stopper.

FIG. 10 is a perspective view showing a main lever.

FIG. 11 is a front view of a main lever.

FIG. 12 is an explanatory diagram when a cartridge is inserted into a cartridge chamber.

FIG. 13 is an explanatory diagram when a cartridge is inserted into a mounting position.

FIG. 14 is an explanatory diagram showing a state where the cartridge is inserted into the mounting position.

FIG. 15 is an explanatory diagram showing a state where the cartridge is fixed to the mounting position.

FIG. 16 is an explanatory diagram showing the configuration of the second embodiment.

FIG. 17 is a sectional view of FIG. 16;

FIG. 18 is an explanatory diagram when a cartridge is inserted into a mounting position.

FIG. 19 is an explanatory view showing a state where the cartridge is fixed to the mounting position.

FIG. 20 is an explanatory view showing how to mount a conventional cartridge.

FIG. 21 is an explanatory view showing a state in which a conventional cartridge is fixed at a mounting position.

[Explanation of symbols]

 Reference Signs List 10 electric stapler main body 700 cartridge 701 cartridge main body 745 locking portion 765 spring (first elastic member) 780 main lever (lever) 795 leaf spring (second elastic member) 800 lever 803 spring (third elastic member)

──────────────────────────────────────────────────続 き Continued on the front page (56) References Japanese Utility Model 1-74076 (JP, U) Japanese Utility Model 1-60880 (JP, U) Japanese Utility Model Utility Model 62-1474 (JP, U) Japanese Utility Model 1-76 87880 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B25C 5/16 B25C 5/15

Claims (3)

(57) [Claims] An electric stapler main body for detachably mounting the cartridge and a first elastic member for urging the cartridge mounted on the electric stapler in a detaching direction. When the cartridge is inserted into the electric stapler body against the urging force of the first elastic member, the cartridge is mounted in the mounting position, and when the cartridge is removed, the mounting position is set by the urging force of the first elastic member. An electric stapler that pushes out a cartridge from the cartridge, wherein a locking portion is provided on the cartridge, and a lever that engages with the locking portion and fixes the cartridge at the mounting position is provided on the electric stapler main body side. Electric stapler characterized by the following. A second elastic member for moving the cartridge to the mounting position against the urging force of the first elastic member when the cartridge is inserted to a predetermined position of the electric stapler main body; The electric stapler according to claim 1, wherein when the engagement is released, the urging of the second elastic member is released and the cartridge is pushed out of the mounting position by the first urging member. 3. A third elastic member for engaging the lever with a locking portion when the cartridge is inserted into a stapler body mounting position, and a release member for releasing the engagement of the lever. The electric stapler according to claim 1, wherein: