JPH11235679A - Electric stapler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric stapler on which a cartridge can be easily mounted. SOLUTION: In an electric stapler in which an electric stapler main body having a cartridge 50 and a magazine 1 is provided, the cartridge 50 has a carrier path and a driving part 54 provided at the tip of this carrier part, a recessed part 3 that the driving part 54 enters is formed in a mounting chamber 2 of the magazine 1, a staple is formed into a U-shape because a forming plate reciprocates and advances to the driving part and this staple formed into the U-shape is driven from the driving part 54 because a driver is reciprocated and advances into the driving part 54, a guide member 100 guiding the cartridge 50 to the mounting chamber and making the driving part 54 of the cartridge 50 enter into the recessed part 3 of the mounting chamber 2 when the cartridge 50 is mounted on the mounting chamber 2 of the magazine 1 and an abutting member 70 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric stapler having a cartridge for stacking and storing sheet staples and a magazine having a mounting chamber for detachably mounting the cartridge.

[0002]

2. Description of the Related Art Conventionally, an electric stapler shown in FIG. 27 is known which is attached to a copying machine or the like.

[0003] Such an electric stapler is composed of a cartridge K in which sheet staples S are stacked and stored, a feed mechanism E for feeding the sheet staples S to an ejection section U, and a reciprocating staple of the ejection section U in a U-shape. A forming plate W, a driver D that reciprocates with the forming plate W and enters the above-described embossing section, and ejects a staple formed in a U-shape from the embossing section U, and a tip end of the embossed staple. A table Z provided with a clincher (not shown) for clinching, and a cartridge K is provided in a magazine N provided in the main body H.
(See FIG. 28).

The feed mechanism E moves the lowermost sheet staple S1 of the cartridge K forward from the cartridge K (see FIG. 2).
7, a roller R for sending out to the left.

[0005] As shown in FIG.
A cartridge body Ka, a transport section J provided at a lower portion of the side wall Kb of the main body Ka and forming a transport path T extending forward from the lower portion, and a punching section U provided at a distal end portion of the transport section J. I have. A projection F is provided at the rear portion of the cartridge body Ka, and a pusher P (see FIG. 27) is provided at the embossing portion U for pushing forward the staple legs formed into a U-shape by a forming plate. Have been.

On the other hand, a mounting chamber NA in which a cartridge K is removably mounted is formed in the magazine N, and a discharge chamber NB having a concave portion NC into which a discharge portion U of the cartridge K enters is formed in the mounting chamber NA. Have been. The abutment chamber NB is provided with a contact wall Na that abuts on the face plate Uf of the embossing unit U. Above the embossing chamber NB,
The gap G for guiding the driver D to the driving portion U is formed by the front wall portions Nb, N
formed by c. Also, in the mounting room NA,
A contact surface Nd that contacts the lower surface Kc of the cartridge body Ka
And a shaft I or the like which comes into contact with the inclined surface Fa of the projection F of the cartridge K. The shaft I is urged forward by a spring V. When the shaft I engages with the inclined surface Fb of the projection F of the cartridge K,
Is fixed to the magazine N.

The concave portion NC is formed by the contact wall portion Na being located forward of the front wall portion Nc. When the cartridge K is mounted in the mounting room NA of the magazine N, the concave portion NC projects the cartridge K into the concave portion NC. When U enters, the face plate Uf of the embossed portion U can be located forward of the gap G. As a result, the driving portion U
Staples can be driven out by inserting the driver D into the gap (not shown).

Further, by providing the ejection portion U in the cartridge K, when staples are jammed in the ejection portion U,
By removing the cartridge K from the magazine N,
The jammed staples can be easily removed.

[0009]

However, in such an electric stapler, the ejection portion U of the cartridge K must be inserted into the concave portion NC of the mounting chamber NA of the magazine N. It cannot be mounted from the top down. For this reason, the driving unit U
Draws an arc shape as shown by an arrow, and as shown in FIG. 29 to FIG.
If not, the embossed portion U cannot be inserted into the concave portion NC.

This makes it difficult to mount the cartridge K. In particular, when the electric stapler is mounted upside down on a copying machine or the like, the magazine N mounting chamber NA is mounted.
The concave portion NC becomes invisible, and the cartridge K must be mounted on the magazine N from below. Therefore, the mounting method is very complicated, and there is a problem that it cannot be easily mounted. .

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 capable of easily mounting a cartridge.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, there is provided an electric motor having a cartridge in which sheet staples are stacked and stored, and a magazine having a mounting chamber in which the cartridge is removably mounted. A stapler body, the cartridge has a transport path for sending out the stacked sheet staples, and a punching section provided at the tip of the transport section, and the punching section is provided in the magazine mounting chamber. A concave portion is formed, and a feed mechanism for feeding sheet staples to the punching section, a reciprocating forming plate and a driver are provided on the magazine side, and the forming plate moves forward and enters the punching section. The staples are formed in a U-shape, and the staples formed in the U-shape move forward and the driver advances to the ejection section. A guide that guides the cartridge to the loading chamber when the cartridge is loaded into the loading chamber of the magazine in the electric stapler that is driven out of the loading section so that the punching section of the cartridge enters the recess of the loading chamber. A mechanism is provided.

According to a second aspect of the present invention, the guide mechanism includes a guide member attached to the magazine, and a contact member attached to the cartridge and guided by the guide member, wherein the guide member comprises a cartridge. And a pair of guide plates provided on both sides of the bottom plate and having an arc-shaped guide groove formed inside, and the contact member includes the guide groove. It has a pair of projections inserted into the inside and a contact portion that comes into contact with the bottom plate to regulate an insertion trajectory when the cartridge is mounted.

[0014]

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.

In FIG. 1, reference numeral 1 denotes a magazine provided on an electric stapler body (not shown) attached to, for example, a copying machine or the like. The magazine 1 has an upper portion (in FIG. 1) and a rear portion (in FIG. 1). A mounting chamber 2 having a part of the right side is opened, and a guide member 100 for guiding the cartridge 50 is provided in the mounting chamber 2. The cartridge 50 is detachably mounted in the mounting chamber 2. It has become.

As shown in FIGS. 2 and 3, the cartridge 50 has a cartridge main body 51 in which sheet staples (not shown) are housed in a stack, and is provided below a front wall 52 of the main body 51. The transport unit 53 includes a transport unit 53 having a transport path (not shown) extending to the left side in FIG. 2, and an embossing unit 54 provided at a distal end of the transport unit 53. A projection 55 is provided on a rear portion (the right side in FIG. 2) of the cartridge main body 51, and a contact member 70 is mounted on an upper portion of the cartridge main body 51. The contact member 70 and the guide member 100 constitute a guide mechanism for guiding the cartridge 50 to the mounting chamber 2 of the magazine 1.

The embossing portion 54 is provided with a face plate 56. Side plates 56A are continuously formed on both sides of the face plate 56, and the side plate 56A is
And the face plate 56 is rotatable about a shaft 57. The face plate 56 is urged by a spring 58 so as to rotate clockwise (in FIG. 3), and a locking portion 59 is provided at a lower portion of the face plate 56. Engagement with the projection 61 prevents rotation of the face plate 56. The engagement protrusion 61 is provided on the side wall 60 on which the shaft 57 is mounted.
It is provided in. By pushing the engagement projection 61 downward, the engagement is released and the face plate 56 rotates clockwise, so that the staples clogged in the embossed portion 54 can be removed.

The contact member 70 has a pair of side walls 71, 71, as shown in FIGS.
The outside of the upper part of 62 is fitted. Outwardly protruding protrusions 72 are formed on the front side (left side in FIG. 4) of the lower portions of the side wall portions 71, and fan-shaped knob portions 73 are formed on the upper portions of the side wall portions 71. I have.

Between the side walls 71, 71, a flat contact plate 74 is formed extending forward and extending in the left-right direction. An R-shaped ridge ( (Contact part) 75 is formed.

The contact member 70 has a 3
The claw members 76, 76, 77 are provided, and the claw members 76A, 76A, 77A of the claw members 76, 76, 77 are provided on a top plate provided on the upper portion of the cartridge main body 51 as shown in FIGS. The contact member 70 is fixed to the cartridge main body 51 by engaging with the locking portions 66, 66, 67 of 65.

As shown in FIG. 11, in the mounting chamber 2 of the magazine 1, there is formed a punching chamber 4 having a concave portion 3 into which the punching section 54 of the cartridge 50 enters. Contact wall portion 5 that contacts plate 56
Is provided. Above the ejection chamber 4, a gap 7 for guiding a driver (not shown) and a forming plate (not shown) to the ejection section 51 is formed.
Is formed by the front wall portions 8 and 9. The driver and the forming plate reciprocate up and down, and the forming plate moves forward to form staples in a U-shape. The staples formed in the U-shape are moved forward by the driver to form the staples 54. It is launched from
These are attached to the magazine 1.

The mounting chamber 2 contains a cartridge body 5.
A contact surface 10 that contacts the lower surface 51A of the cartridge 1 and a shaft 11 that contacts the inclined surface 55a of the projection 55 of the cartridge 50 are provided. The shaft 11 is urged forward by a spring 12, and fixes the cartridge 50 to the magazine 1 by engaging the shaft 11 with the inclined surface 55 b of the projection 55 of the cartridge 50. Further, guide portions G1 and G2 for guiding the ejection portion 54 of the cartridge 50 to the concave portion 3 are formed in the mounting chamber 2. The guide portions G1 and G2 are formed inside the side wall 1A of the magazine 1.

The guide member 100 is shown in FIGS.
As shown in the figure, a bottom plate 101 formed in a substantially arc shape and having substantially the same width W1 as the cartridge body 51.
And a pair of side plates 10 provided on both sides of the bottom plate 101.
2, 102, and the bottom plate 101 projects forward and upward from above the front wall 9 of the magazine 1. A substantially arc-shaped guide groove 103 is formed inside the side plates 102 along the bottom plate 101. The width W2 of the guide grooves 103 is determined by the diameter of the projections 72 of the contact member 70. It is set larger.

Next, how to mount the cartridge 50 will be described.

First, as shown in FIG. 18, the ejection portion 54 of the cartridge 50 is held downward by holding the knobs 73, 73 of the contact member 70 provided on the cartridge body 51, and the rear wall of the cartridge body 51 is provided. 51B is set to the upper side. Then, the guide grooves 10 of the guide member 100 in which the protrusions 72 of the contact member 70 are attached to the magazine 1 are provided.
3,103.

Next, as shown in FIG.
The zero ridge 75 is brought into contact with the bottom plate 101 of the guide member 100, and the finger is released from the knobs 73 of the contact member 70. Then, the cartridge 50 is attached to the bottom plate 101 by its own weight.
Sliding down. At this time, the cartridge 50 slides down while being guided in a circular arc by the guide grooves 103, 103 of the guide member 100, and the ejection portion 54 is guided by the guide portions G1, G2, as shown in FIG. As shown in FIG.
Get into it.

At this time, the shaft 11 of the mounting chamber 2 comes into contact with the inclined surface 55a of the projection 55 of the cartridge 50, but the cartridge 50 moves the shaft 11 backward against the urging force of the spring 12 by inertia. As shown in FIG. The shaft 11 abuts on the inclined surface 55b of the projection 55 of the cartridge 50 by the urging force of the spring 12, and the cartridge 50 is fixed.

The removal of the cartridge 50 is the same as the conventional one, so that the description is omitted.

Next, a case where the electric stapler is mounted on a copying machine or the like with the top and bottom inverted will be described.

First, as shown in FIG. 22, the projections 72 of the contact member 70 are attached to the magazine 1 with the ejection portion 54 of the cartridge 50 facing upward and the rear wall 51B of the cartridge body 51 facing downward. Guide member 100
To the guide grooves 103, 103. When the cartridge 50 is pushed leftward from this state, the contact member 70
Of the guide groove 103 of the guide member 100,
By being guided by the cartridge 103, the cartridge 50 is pushed up as shown in FIG. 23, and the ridge 75 of the contact member 70 comes into contact with the bottom plate 101 of the guide member 100.

When the knobs 73, 73 of the contact member 70 are pushed obliquely upward from the state shown in FIG. 23, the projections 72, 72 of the cartridge 50 are guided by the guide grooves 103, 103, and the projection 75 is moved. By being guided by the bottom plate 101, it is pushed up in an arc as shown in FIG. From this state, the knob 7 of the contact member 70
When the cartridge 3, 50 is pushed upward, the cartridge 50 is pushed up in a circular arc by the guide grooves 103, 103 and the bottom plate 101, and the ejection portion 54 is guided by the guide portions G1, G2, as shown in FIG. As shown, the ejection portion 54 of the cartridge 50 enters the recess 3 of the mounting chamber 2 of the magazine 1, and the shaft 11 of the mounting chamber 2
Abuts on the inclined surface 55a of the projection 55.

When the cartridge 50 is further pushed upward from the state shown in FIG. 25, the shaft 11 is moved rearward against the urging force of the spring 12, and is mounted in the mounting chamber 2 as shown in FIG. The shaft 11 abuts on the inclined surface 55b of the projection 55 of the cartridge 50 by the urging force of the spring 12, and the cartridge 50 is fixed.

As described above, the projections 72, 7 of the contact member 70
2 can be inserted into the guide grooves 103 of the guide member 100 and the cartridge 50 can be mounted on the magazine 1 simply by pushing the cartridge body 51.
The way of attachment is very simple. That is,
Since the insertion trajectory of the cartridge 50 at the time of mounting is regulated by the guide member 100, the cartridge 50 can be easily mounted on the magazine 1.

[0034]

As described above, according to the present invention, the insertion trajectory at the time of mounting the cartridge is regulated by the guide mechanism, so that the cartridge can be easily mounted on the magazine.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a configuration of a magazine attached to an electric stapler body according to the present invention and a mounted state of a cartridge.

FIG. 2 is a front view showing a cartridge mounted on the magazine of FIG. 1;

FIG. 3 is a side view of the cartridge shown in FIG.

FIG. 4 is a side view showing a contact member.

FIG. 5 is a plan view of the contact member shown in FIG. 4;

FIG. 6 is a rear view of the contact member shown in FIG. 4;

FIG. 7 is a longitudinal sectional view of the contact member shown in FIG.

FIG. 8 is a cross-sectional view of the contact member shown in FIG.

FIG. 9 is an explanatory diagram showing a state of a claw of a contact member that engages with a top plate of the cartridge main body.

FIG. 10 is a cross-sectional view showing a state of a claw of a contact member that engages with a top plate of the cartridge main body.

FIG. 11 is a cross-sectional view showing a configuration of a magazine.

FIG. 12 is a side view showing a guide member.

FIG. 13 is a plan view of the guide member shown in FIG.

FIG. 14 is a front view of the guide member shown in FIG.

FIG. 15 is a longitudinal sectional view of the guide member shown in FIG.

FIG. 16 is a rear view of the guide member shown in FIG.

FIG. 17 is a transverse sectional view of the guide member shown in FIG.

FIG. 18 is an explanatory diagram showing an initial position state of the cartridge with respect to the guide member when the cartridge is mounted on the magazine.

FIG. 19 is an explanatory view showing a state where the cartridge has slightly moved along the guide member.

FIG. 20 is an explanatory view showing a state one step before the cartridge is mounted in the magazine mounting chamber.

FIG. 21 is an explanatory view showing a state where the cartridge is mounted in a magazine mounting chamber.

FIG. 22 is an explanatory diagram showing how to mount the cartridge when the electric stapler is mounted upside down.

FIG. 23 is an explanatory view showing a state where the cartridge shown in FIG. 22 is slightly pushed up along a guide member.

FIG. 24 is an explanatory view showing a state where the cartridge shown in FIG. 23 is further pushed up along a guide member.

FIG. 25 is an explanatory diagram showing a state immediately before the cartridge shown in FIG. 23 is mounted in a magazine mounting chamber.

FIG. 26 is an explanatory view showing a state where the cartridge is mounted in a magazine mounting chamber.

FIG. 27 is a schematic explanatory view showing a configuration of a conventional electric stapler.

28 is an explanatory diagram showing a magazine and a cartridge of the electric stapler of FIG. 27;

FIG. 29 is an explanatory diagram showing a state where the cartridge is mounted on the magazine.

FIG. 30 is an explanatory diagram showing a state one step before the cartridge is mounted on the magazine.

FIG. 31 is an explanatory diagram showing a state in which the cartridge is mounted on a magazine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magazine 2 Mounting chamber 3 Concave part 50 Cartridge 54 Ejection part 70 Contact member 100 Guide member

Claims (2)

[Claims] An electric stapler having a magazine having a mounting chamber in which the cartridges are detachably mounted, the cartridge having a magazine for forming a mounting chamber in which the cartridges can be detachably mounted, wherein the cartridge feeds the stacked sheet staples. A transport path, and a punching section provided at the tip of the transporting section, and a recess into which the punching section enters is formed in the magazine mounting chamber, and on the magazine side,
A feeding mechanism for feeding the sheet staples to the punching section, a reciprocating forming plate and a driver are provided, and the staples are formed into a U-shape by the forming plate moving forward and entering the punching section. In an electric stapler, which drives the staples formed in a shape in a forward direction and drives out from the driving unit by entering the driving unit, when mounting the cartridge in a mounting chamber of a magazine,
An electric stapler provided with a guide mechanism for guiding a cartridge to a mounting chamber so that an ejection portion of the cartridge enters a concave portion of the mounting chamber. 2. The guide mechanism includes a guide member attached to the magazine, and a contact member attached to the cartridge and guided by the guide member, wherein the guide member mounts the cartridge in a magazine mounting chamber. And a pair of guide plates provided on both sides of the bottom plate and having an arc-shaped guide groove formed inside, and the contact member is inserted into the guide groove. 2. The electric stapler according to claim 1, further comprising a pair of protrusions and an abutting portion that abuts on the bottom plate to regulate an insertion trajectory when the cartridge is mounted.