Stapler with a leg-flatting device

Description

1. Field of the Invention

[0001] The present invention relates to a stapler, and more particularly to a stapler that has a leg-flatting device to bend legs of a staple flatly.

2. Description of Related Art

[0002] A conventional stapler has a leg-bending device to bend legs of a staple. However, the conventional leg-bending device bends legs of staple curved, such that the thickness of documents combined by staples is thick. The bent curved legs cannot hold documents with a large thickness and are easily deformed to injure a person. Therefore, staplers with a leg-flatting device such as Taiwan Patent No. I229026 or I1274637 are provided to solve the aforementioned problems.

[0003] WO-03/082528-A1 discloses a stapler with a leg-flatting device, too.

[0004] The '026 Patent disclosed a leg-flatting device with a V-shaped driving element. The driving element has one end connected pivotally to a front end of a trigger lever to driving the leg-flatting device when the trigger lever is pressed. However, the driving element is connected to the front end of the trigger lever, a large force is needed to operate the stapler. In addition, the structure of the conventional stapler is complicated, the cost for manufacturing the conventional stapler is high. Furthermore, to refill staples into the conventional stapler, the trigger lever shall be pivoted to a large angle to open a staple magazine, but this easily causes the stapler turning over.

[0005] The '637 Patent disclosed stapler with a sliding element connected between a trigger lever and a leg-flatting device. When the trigger lever is moved downward, the sliding element will be moved to actuate the leg-flatting device to clinch legs of a release staple. However, the sliding element of the conventional staple has complicated structure, to manufacture and assemble the conventional stapler is trouble and time-consuming. Additionally, the force applied to the trigger lever cannot be efficiently transmitted to the leg-flatting device through the sliding element.

[0006] Another conventional stapler disclosed in Taiwan Utility Model No. 299629. The '629 Utility Model disclosed a driving device in a lever system form to connect a trigger lever and provide a labor-saving effect. However, the driving device of the '629 Utility Model also has a complicated structure, and the cost for manufacturing the conventional stapler is also high. In addition, the trigger lever shall be pivoted to a large angle to open a staple magazine for refilling staples, and this easily causes the stapler turning over.

[0007] To overcome the shortcomings, the present invention tends to provide a stapler to mitigate or obviate the aforementioned problems.

[0008] The main objective of the invention is to provide a stapler having simple structure and which stands stable if its trigger assembly is pivoted to a refilling position.

[0009] The problem is solved according to claim 1.

[0010] The stapler comprises a supporting base, a magazine assembly, a trigger assembly, an auxiliary lever and a leg-flatting device. The supporting base has a front end and a rear end. The magazine assembly is connected pivotally to the rear end of the supporting base. The auxiliary lever is pivotally connected to the supporting base. The trigger assembly is connected pivotally to the rear end of the supporting base at a position above the magazine assembly and has a trigger lever and a pushing element. The trigger lever is connected pivotally to the rear end of the supporting base. The pushing element is mounted pivotally on the trigger lever with a pivot and has two pushing arms extending toward the supporting base. The leg-flatting device is mounted on the supporting base and has a sliding base, a moving base and an anvil element. The sliding base is slidably mounted on the supporting base and has a pushed segment formed on the sliding base and corresponding to and selectively pushed by the pushing arms on the pushing element. The moving base is connected operationally to the supporting base, is selectively blocked by the sliding base to keep the moving base from moving downwardly before the sliding base sliding relative to the supporting base and has a front end and an elongated hole defined in the front end. The anvil element is mounted in the elongated hole in the moving base.

IN THE DRAWINGS

[0011] 

Fig. 1 is a perspective view of a stapler in accordance with the present invention;

Fig. 2 is an exploded perspective view of the stapler in Fig. 1;

Fig. 3 is a rear perspective view of the stapler in Fig. 1;

Fig. 4 is a perspective view of the stapler in Fig. 1 showing the stapler being opened for refilling staples;

Fig. 5 is a side view in partial section of the stapler in Fig. 1;

Fig. 6 is an operational side view in partial section of the stapler in Fig. 1 showing the trigger assembly being pressed;

Fig. 7 is an operational side view in partial section of the stapler in Fig. 1 showing the sliding base of the leg-flatting device being slid by the pushing element; and

Fig. 8 is a side view of the stapler in Fig. 6 with force lines indicated.

[0012] With reference to Figs. 1 and 2, a stapler in accordance with the present invention comprises a supporting base (10), a magazine assembly (20), a trigger assembly (30), a leg-flatting device (40) and a base holder (50).

[0013] The supporting base (10) has a front end, a rear end, a bottom and comprises a bottom board (11) and two side boards (12) formed on and protruding upward from two sides of the bottom board (11). The bottom board (11) is elongated and has a front end, a rear end and a pair of guiding holes (111) and a mounting hole (112). The guiding holes (111) and the mounting hole (112) are defined in the front end of the bottom board (11). Two pivotal tabs (114) are formed on a middle of the bottom board (11) of the supporting base (10). A spring mount (113) is formed on the middle of the bottom board (11) between the mounting hole (112) and the pivotal tabs (114).

[0014] Each side board (12) has a main pivoting hole (121) defined at the rear end of the supporting base (10) and aligning with each other and a secondary pivoting hole (122) aligning with each other. A main pivot (13) is mounted through the main pivot holes (121) in the side boards (12) to pivotally connect the magazine assembly (20) and the trigger assembly (30) with the supporting base (10). A curved limiting slot (123) is defined in each side board (12) near the secondary pivoting hole (122) and aligns with each other. Each side board (12) further has a hook (124) formed on a front end of the side board (12).

[0015] The magazine assembly (20) is connected pivotally to the rear end of the supporting base (10) with the main pivot (13) and comprises a staple magazine (21), a magazine cap (23) and a limiting rod (22).

[0016] The staple magazine (21) is pivotally connected to the rear end of the supporting base (10) with the main pivot (13) and holds staples inside. A magazine spring (14) is mounted between the bottom board (11) of the supporting base (10) and the bottom of the staple magazine (21) to support the staple magazine (21). The staple magazine (21) has a rear end, two pivoting holes (211) and two rod holes (212). The pivoting holes (211) are defined in the rear end of the staple magazine (21), and the main pivot (13) is mounted through the pivoting holes (211) to connect the staple magazine (21) pivotally to the supporting base (10). The rod holes (212) are defined in the middle at the bottom of the staple magazine (21) and correspond to the limiting slots (123) in the side boards (12) of the supporting base (10).

[0017] The magazine cap (23) is connected pivotally to the supporting base (10) and the staple magazine (21) with the main pivot (13) and has a top and a hook (231) formed on the top of the magazine cap (23).

[0018] The limiting rod (22) is mounted through the rod holes (212) in the staple magazine (21) and has two ends respectively held slidably in the limiting slots (123) in the supporting base (10).

[0019] With further reference to Fig. 3, the trigger assembly (30) is connected pivotally to the rear end of the supporting base (10) with the main pivot (13) at a position above the magazine assembly (20) and comprises a trigger lever (31), a pushing element (36), a pivot (35) and an auxiliary lever (34).

[0020] The trigger lever (31) is connected pivotally to the rear end of the supporting base (10) with the main pivot (13). The trigger lever (31) has a front end, a rear end, a middle, two pivoting holes (311) and two pivotal holes (312). The pivoting holes (311) are defined in the rear end of the trigger lever (31) and align with each other. The main pivot (13) is mounted through the pivoting holes (311) to connect the trigger lever (31) pivotally with the supporting base (10). The pivotal holes (312) are defined in the top at the middle of the trigger lever (31) and align with each other. The staple driving tab (32) is attached securely to the front end of the trigger lever (31) and engages slidably the magazine cap (23). A trigger spring (3 3) is mounted between and abuts with the trigger lever (31) and the magazine cap (23).

[0021] The pushing element (36) is U-shaped, is mounted pivotally on the trigger lever (31) with the pivot (35) and has a top board and two pushing arms (361). The top board has two ends and an engaging tap (363) engaging the hook (231) on the magazine cap (23). The pushing arms (361) are curved and extend respectively from the ends of the top board and toward the supporting base (10). Each pushing arm (361) has a pivotal hole (362) aligning with each other.

[0022] The pivot (35) is mounted through the pivotal holes (312,362) in the trigger lever (31) and the pushing arms (361) to pivotally connect the pushing element (36) to the trigger lever (31). The pivot (35) of the trigger assembly (30) and the pushing arms (361) of the pushing element (36) are arranged along a pivotal route at a center of the main pivot (13).

[0023] The auxiliary lever (34) is pivotally connected to the rear end of the supporting base (10) and has two side boards formed on and extending downward from a top of the auxiliary lever (34). Each side board of the auxiliary lever (34) has a pivotal stub (341) formed on a rear end of the side board and rotatably mounted in the secondary pivoting hole (122) in a corresponding one of the side boards (12) of the supporting base (10) to pivotally connect the auxiliary lever (34) to the supporting base (10).

[0024] The auxiliary lever (34) has a rail on which the pivot (35) of the trigger assembly (30) is slidably mounted. The rail of the auxiliary lever (34) comprises two slots (342) defined respectively through the side boards of the auxiliary lever (34). Two ends of the pivot (35) of the trigger assembly (30) are respectively held slidably in the slots (342) in the side boards of the auxiliary lever (34).

[0025] With reference to Figs. 2, 5 and 6, the leg-flatting device (40) is mounted on the supporting base (10) and comprises a sliding base (41), a moving base (43) and an anvil element (45).

[0026] The sliding base (41) is slidably mounted on the supporting base (10) and has a pushed segment formed on the sliding base (41) and corresponding to and selectively pushed by the pushing arms (361) on the pushing element (36). The pushed segment of the sliding base (41) is arranged along the pivotal route along which the pivot (35) of the trigger assembly (30) and the pushing arms (361) of the pushing element (36) are arranged. In a preferred embodiment, the pushed segment comprises two pushed tabs (412) mounted on two sides at the rear end of the sliding base (41).

[0027] The sliding base (41) further has multiple engaging tabs (411) formed on and protruding from a bottom of the sliding base (41) and respectively engaging slidably the guiding holes (111) and the mounting hole (112) in the bottom board (11) of the supporting base (10).

[0028] The sliding base (41) further has an abutting rib (415) formed on a front end of the sliding base (41) and an opening (414) defined through the sliding base (41) near the front end.

[0029] A retracting spring (42) is mounted between the spring mount (113) on the supporting base and the sliding base (41) to provide recoil force to the sliding base. In a preferred embodiment, the sliding base (41) has a spring channel (413) defined in a middle of the sliding base (41) to hold the retracting spring (42) inside.

[0030] The moving base (43) is connected operationally, preferably pivotally to the supporting base (10) and is selectively blocked by the sliding base (41) to keep the moving base (43) from moving downwardly before the sliding base (41) sliding relative to the supporting base (10). The moving base (43) has a front end, a rear end and an elongated hole (431) defined in the front end. Two pivotal stubs (432) are formed on the rear end of the moving base (43) and are rotatably connected with the pivotal tabs (114) on the supporting base (10) to pivotally connect the moving base (43) to the supporting base (10).

[0031] The moving base (43) further has an abutting flange (434) formed on a bottom at the front end of the moving base (43) and abutting with the abutting rib (415) on the sliding base (41).

[0032] In addition, a base spring (44) is held in the opening (414) in the sliding base (41) and is mounted between the moving base (43) and the bottom board of the supporting base (10) to support and provide a recoil force to the moving base (43).

[0033] The anvil element (45) is mounted in the elongated hole (431) in the moving base (43), is supported by a supporting spring (46) and corresponds to the staple driving tab (32).

[0034] With reference to Figs. 1 and 2, the base holder (50) is mounted on the bottom of the supporting base (10) and has a front end, a recess (51), two side walls (52), two hooking arms (53) and a sliding channel (54).

[0035] The recess (51) is defined in a top of the base holder (50) to hole the bottom board (11) of the supporting base (10) inside and defines the side walls (52) respectively at two sides of the base holder (50). The hooking arms (53) are formed respectively on the side walls (52) and engage respectively the front ends of the side boards (12) of the supporting base (10) to securely hold the supporting base (10) on the base holder (50).

[0036] The sliding channel (54) is defined in the front end of the base holder (50) to movably hold the anvil element (45) in the sliding channel (54). In a preferred embodiment, the sliding channel (54) is defined between a front tab (541) and two side tabs (542) formed near the side walls (52).

[0037] With reference to Figs. 1 and 4, to fill staples, the trigger assembly (30) is pulled upward, the trigger lever (31) is pivoted relative to the supporting base (10) and the pivot (35) slides along the rail on the auxiliary lever (34). Consequently, the magazine cap (23) is pivoted with the trigger lever (31) relative to the supporting base (10), and the staple magazine (21) is opened for filling staples. Accordingly, to refill staples into the stapler is convenient and easy. In addition, with a limiting effect provided by the rail on the auxiliary lever (34) to the pivot (35), the trigger lever (31) only can be pivoted to a position where the trigger lever (31) is substantially perpendicular to the supporting base (10). Therefore, the gravity center of the stapler can be always held in the area of the supporting base (10), the stapler can be kept stable on a plane even when the trigger assembly (30) is pivoted to a refilling position.

[0038] With reference to Figs. 1, 5 and 8, when the trigger assembly (30) is pressed, the auxiliary lever (34) is moved downward to make trigger lever (31) being pivoted downward at a center of the main pivot (13). The driving tab (32) is moved downward to press against one of the staples to be released from in the staple magazine (21). With the anvil element (45), the legs of the released staple can be clinched.

[0039] Equations as follows are used to prove that the stapler is laborsaving and is convenient to use. The equations include an input force (F1) at the front end of the auxiliary lever (34), an internal force (F2) applied at the pivot (35), an output force (F3) applied at the front end of the trigger lever (31). A ratio of a length of the auxiliary lever (34) and a distance from the pivot (35) to the pivotal stubs (341) is 5. A ratio of the length of the trigger lever (31) and a distance from the pivot (35) to the main pivot (14) is 2.

[0040] Because the output force (F3) is 2.5 times the input force (F1), the stapler is laborsaving.

[0041] With reference to Figs. 5 to 7, when the trigger lever (31) is moved downward, the pushing element (36) will move downward with the trigger lever (31) and push against the pushed segment on the sliding base (41). Consequently, the sliding base (41) will be pushed to move toward the rear end of the supporting base (10) to release the blocking effect to the moving base (43). Thus, the moving base (43) with the anvil element (45) will move downward to clinch the legs of a released staple.

[0042] Because the pushing element (36) is mounted pivotally on a middle of the trigger lever (31), the leg-flatting device (40) is pushed directly by the pushing element (36). Thus, the structure of the stapler can be simplified and the operation of the stapler can be precisely controlled. Additionally, the trigger assembly (30) is designed to have a labor-saving capability as a lever device, the labor-saving lever system and the transmission system of the stapler in accordance with the present invention has a single fulcrum. The actions of the elements of the trigger assembly (30) in different operating times can be efficiently transferred to the leg-flatting device (40) via the pushing element (36). Accordingly, the operation time of the trigger assembly (30) is short, so the stapler is labor-saving and the structure of the stapler is simplified.

Claims

1. A stapler comprising:

a supporting base (10) having

a front end; and

a rear end;

a magazine assembly (20) connected pivotally to the rear end of the supporting base (10); and

a trigger assembly (30) connected pivotally to the rear end of the supporting base (10) at a position above the magazine assembly (20) and having a trigger lever (31) connected pivotally to the rear end of the supporting base (10),

characterized by

the trigger assembly (30) further having a pushing element (36) mounted pivotally on the trigger lever (31) with a pivot (35) and having two pushing arms (361) extending toward the supporting base (10); and

an auxiliary lever (34) pivotally connected to the rear end of the supporting base (10) and having a rail on which the pivot (35) of the trigger assembly (30) is slidably mounted, and

a leg-flatting device (40) mounted on the supporting base (10) and having a sliding base (41) slidably mounted on the supporting base (10) and having a pushed segment corresponding to and selectively pushed by the pushing arms (361);

a moving base (43) connected operationally to the supporting base (10), selectively blocked by the sliding base (41) to keep the moving base (43) from moving downwardly before the sliding base (43) sliding relative to the supporting base (10) and having

a front end; and

an elongated hole (431) defined in the front end; and an anvil element (45) mounted in the elongated hole (431) in the moving base (43).

2. The stapler as claimed in claim 1,wherein the supporting base (10) has a main pivot (13) mounted on the rear end of the supporting base (10);the magazine assembly (20) and trigger lever (30) are pivotally connected to the supporting base (10) with the main pivot (13); and the pivot (35) of the trigger assembly (30), the pushing arms (361) of the 10 pushing element (36) and the pushed segment of the sliding base (41) are arranged along a pivotal route at a center of the main pivot (13).

3. The stapler as claimed in claim 2, wherein the pushing element (36) has a top board with two ends; the pushing arms (361) are curved, extend respectively from the ends of 15 the top board and each has a pivotal hole (362) aligning with each other; and the pivot (35) of the trigger assembly (30) is mounted through the pivotal holes (362) in the pushing arms (361) to pivotally connect the pushing element (36) to the trigger lever (31).

4. The stapler as claimed in claim 3, wherein the magazine assembly (20) comprises a magazine cap (23) having a top and a hook (231) formed on the top of the magazine cap (23); and the top board of the pushing element (36) has an engaging tap (363) engaging the hook (231) on the magazine cap (23).

5. The stapler as claimed in claim 4, wherein the trigger lever (31) has a staple driving tab (32) attached to a front end of the trigger lever (31) and engaging slidably the magazine cap (23); and a trigger spring (33) is mounted between and abuts with the trigger lever (31) and the magazine cap (23).

6. The stapler as claimed in claim 1, wherein the auxiliary lever (34) has two side boards formed on and extending downward from a top of the auxiliary lever (34); the rail of the auxiliary lever (34) comprises two slots (342) defined respectively through the side boards; and two ends of the pivot (35) of the trigger assembly (30) are respectively 15 held slidably in the slots (342) in the side boards of the auxiliary lever (34).

7. The stapler as claimed in claim 1, wherein the trigger lever (31) has two pivotal holes (312) defined in a top of the trigger lever (31) and aligning with each other; and the pivot (35) of the trigger assembly (30) is mounted through the pivotal 20 holes (312) in the trigger lever (31).

8. The stapler as claimed in claim 7, wherein the supporting base (10) comprises an elongated bottom board (11) having a front end, a rear end, a pair of guiding holes (111) defined in the front end of the bottom board (11) and a mounting hole (112) defined in the front end of the bottom board (11); the sliding base (41) has multiple engaging tabs (411) formed on and protruding from a bottom of the sliding base (41) and respectively engaging slidably the guiding holes (111) and the mounting hole (112) in the bottom board (11) of the supporting base (10).

9. The stapler as claimed in claim 8, wherein the supporting base (10)has two pivotal tabs (114) formed on the bottom board (11) of the supporting base (10); and the moving base (43) has two pivotal stubs (432) formed on a rear end of the moving base (43) and rotatably connected with the pivotal tabs (114) on the 10 supporting base (10) to pivotally connect the moving base (43) to the supporting base (10).

10. The stapler as claimed in claim 9, wherein the sliding base (41) has an abutting rib (415) formed on a front end of the sliding base (41); and the moving base (43) has an abutting flange (434) formed on a bottom at the front end of the moving base (43) and abutting with the abutting rib (415) on the sliding base (41).

11. The stapler as claimed in claim 1 or 10 further comprising a base holder (50) mounted on a bottom of the supporting base (10) and having a front end and a sliding channel (54) defined in the front end of the base holder (50); and the anvil element (45) is movably mounted in the sliding channel (54) in the base holder (50).

Ansprüche

1. Klammerheftgerät umfassend:

eine Trägerbasis (10) mit

einem vorderen Ende: und

einem hinteren Ende;

eine Magazinbaugruppe (20), schwenkbar verbunden mit dem hinteren Ende der Trägerbasis (10); und

eine Auslöserbaugruppe (30), schwenkbar verbunden mit dem hinteren Ende der Trägerbasis (10) an einer Stelle oberhalb der Magazinbaugruppe (20) und mit einem Auslöserhebel (31), schwenkbar verbunden mit dem hinteren Ende der Trägerbasis (10),

gekennzeichnet durch

die Auslöserbaugruppe (30) hat ferner ein Drückelement (36), das mit einem Schwenklager (35) schwenkbar auf dem Auslöserhebel (31) gelagert ist und zwei sich zu der Trägerbasis (10) hin erstreckende Drückarme (361) aufweist; und

einen Hilfshebel (34), der mit dem hinteren Ende der Trägerbasis (10) schwenkbar verbunden ist und eine Schiene aufweist, auf welcher das Schwenklager (35) der Auslöserbaugruppe (30) gleitend gelagert ist, und

eine Vorrichtung zum Flachmachen der Schenkel (40), montiert auf der Trägerbasis (10) und mit

einer gleitenden Basis (41), gleitend gelagert auf der Trägerbasis (10) und ein gedrücktes Segment aufweisend, das den Drückarmen (361) entspricht und wahlweise von diesen gedrückt wird;

eine bewegliche Basis (43), in Wirkverbindung mit der Trägerbasis (10) und wahlweise blockiert durch die gleitende Basis (41), um die bewegliche Basis (43) davon abzuhalten, sich abwärts zu bewegen, bevor die gleitende Basis (43) relativ zu der Trägerbasis (10) gleitet, und mit

einem vorderen Ende; und

einem Langloch (431), definiert in dem vorderen Ende; und einem Ambosselement (45), das in dem Langloch (431) in der beweglichen Basis (43) gelagert ist.

2. Klammerheftgerät gemäß Anspruch 1, wobei die Trägerbasis (10) ein an dem hinteren Ende der Trägerbasis (10) angebrachtes Haupt-Schwenklager (13) hat; die Magazinbaugruppe (20) und der Auslöserhebel (30) durch das Haupt-Schwenklager (13) schwenkbar mit der Trägerbasis (10) verbunden sind; und das Schwenklager (35) der Auslöserbaugruppe (30), die Drückarme (361) des Drückelements (36) und das gedrückte Segment der gleitenden Basis (41) entlang eines Schwenkweges an einem Zentrum des Haupt-Schwenklagers (13) angeordnet sind.

3. Klammerheftgerät gemäß Anspruch 2, wobei das Drückelement (36) eine obere Platte mit zwei Enden hat; die Drückarme (361) gebogen sind, sich jeweils von den Enden der oberen Platte erstrecken und jeder ein Schwenkloch (362) aufweist, das mit dem anderen fluchtet; und das Schwenklager (35) der Auslösebaugruppe (30) durch die Schwenklöcher (362) in den Drückarmen (361) hindurch gelagert ist, um das Drückelement (36) schwenkbar mit dem Auslöserhebel (31) zu verbinden.

4. Klammerheftgerät gemäß Anspruch 3, wobei die Magazinbaugruppe (20) eine Magazinkappe (23) mit einer Oberseite und einem auf der Oberseite der Magazinkappe (23) ausgebildeten Haken (231) umfasst; und die obere Platte des Drückelementes (36) einen Eingriffszapfen (363) hat, der den Haken (231) auf der Magazinkappe (23) in Eingriff nimmt.

5. Klammerheftgerät gemäß Anspruch 4, wobei der Auslöserhebel (31) eine Klammertreibzunge (32) hat, die an einem vorderen Ende des Auslöserhebels (31) angebracht ist und die Magazinkappe (23) gleitend in Eingriff nimmt; und eine Auslöserfeder (33) an dem Auslöserhebel (31) und der Magazinkappe (23) anliegt und zwischen diesen angebracht ist.

6. Klammerheftgerät gemäß Anspruch 1, wobei der Hilfshebel (34) zwei Seitenplatten hat, die sich abwärts von einer Oberseite des Hilfshebels (34) erstrecken und auf dieser ausgebildet sind; die Schiene des Hilfshebels (34) zwei Schlitze (342) umfasst, die jeweils durch die Seitenplatten hindurch definiert sind; und zwei Enden des Schwenklagers (35) der Auslöserbaugruppe (30) jeweils gleitend in den Schlitzen (342) in den Seitenplatten des Hilfshebels (34) gehalten sind.

7. Klammerheftgerät gemäß Anspruch 1, wobei der Auslöserhebel (31) zwei in einer Oberseite des Auslöserhebels (31) definierte und miteinander fluchtende Schwenklöcher (321) hat; und das Schwenklager (35) der Auslöserbaugruppe (30) durch die Schwenklöcher (321) in dem Auslöserhebel (31) hindurch gelagert ist.

8. Klammerheftgerät gemäß Anspruch 7, wobei die Trägerbasis (10) eine langgestreckte Grundplatte (11) mit einem vorderen Ende, einem hinteren Ende , einem Paar in dem vorderen Ende der Grundplatte (11) definierten Führungslöchern (111), und einem in dem vorderen Ende der Grundplatte (11) definierten Montageloch (112) umfasst; die gleitende Basis (41) mehrere Eingriffszapfen (411) aufweist, die auf einem Boden der gleitenden Basis (41) ausgebildet sind und von diesem hervorstehen und jeweils die Führungslöcher (111) und das Montageloch (112) in der Grundplatte (11) der Trägerbasis (10) gleitend in Eingriff nehmen.

9. Klammerheftgerät gemäß Anspruch 8, wobei die Trägerbasis (10) zwei auf der Grundplatte (11) der Trägerbasis (10) ausgebildete Schwenkzapfen (114) aufweist; und die bewegliche Basis (34) zwei Schwenkstummel (432) aufweist, die an einem hinteren Ende der beweglichen Basis (43) ausgebildet und mit den Schwenkzapfen (114) auf der Trägerbasis (10) drehbar verbunden sind, um die bewegliche Basis (43) mit der Trägerbasis (10) schwenkbar zu verbinden.

10. Klammerheftgerät gemäß Anspruch 9, wobei die gleitende Basis (41) eine auf einem vorderen Ende der gleitenden Basis (41) ausgebildete anstoßende Rippe (415) aufweist; und die bewegliche Basis (43) einen auf einem Boden des vorderen Endes der beweglichen Basis (43) ausgebildeten anstoßenden Flansch (434) aufweist, der an die anstoßende Rippe (415) auf der gleitenden Basis (41) anstößt.

11. Klammerheftgerät gemäß Anspruch 1 oder 10, ferner umfassend einen Basishalter (50), der auf einem Boden der Trägerbasis (10) angebracht ist und ein vorderes Ende und einen in dem vorderen Ende des Basishalters (50) definierten Gleitkanal (54) aufweist; und das Ambosselement (45) in dem Gleitkanal (54) in dem Basishalter (50) beweglich gelagert ist.

Revendications

1. Agrafeuse comportant:

une base de soutien (10) avec

une extrémité avant: et

une extrémité arrière;

un ensemble de magasin (20), relié à pivotement avec l'extrémité arrière de la base de soutien (10); et

un ensemble de déclenchement (30), relié à pivotement avec l'extrémité arrière de la base de soutien (10) dans une position au-dessus de l'ensemble de magasin (20) et avec

un levier de déclenchement (31), relié à pivotement avec l'extrémité arrière de la base de soutien (10),

caractérisé par

l'ensemble de déclenchement (30) a en outre un élément de poussée (36), qui est monté à pivotement sur le levier de déclenchement (31) par un palier de pivotement (35) et a deux bras poussants (361) qui s'étendent vers la base de soutien (10); et

un levier auxiliaire, (34), relié à pivotement avec l'extrémité arrière de la base de soutien (10) et ayant un rail, sur lequel le palier de pivotement (35) de l'ensemble de déclenchement (30) est monté de façon glissante, et

un dispositif pour faire plat les jambes (40), monté sur la base de soutien (10) et ayant une base coulissante (41), montée de façon coulissante sur la base de soutien (10) et

ayant un segment poussé correspondant aux bras poussants (361) et étant poussé par ceux-ci au choix;

une base mobile (43), reliée de manière opérationnelle à la base de soutien (10) et

bloquée au choix par la base coulissante (41), afin d'empêcher la base mobile (43) de se déplacer vers le bas avant que la base coulissante (43) glisse par rapport à la base de soutien (10), et avec

une extrémité avant; et

un trou oblong (431), défini dans l'extrémité avant; et un élément d'enclume (45), monté dans le trou oblong (431) dans la base mobile (43).

2. Agrafeuse selon la revendication 1, dans laquelle la base de soutien (10) a un palier de pivotement principal (13) monté sur l'extrémité arrière de la base de soutien (10); l'ensemble de magasin (20) et le levier de déclenchement (30) sont reliés à pivotement à la base de soutien (10) par le palier de pivotement principal (13); et le palier de pivotement (35) de l'ensemble de déclenchement (30), les bras poussants (361) de l'élément de poussée (36) et le segment poussé de la base coulissante (41) sont arrangés le long d'un chemin de pivotement dans un centre du palier de pivotement principal (13).

3. Agrafeuse selon la revendication 2, dans laquelle l'élément de poussée (36) a un plat supérieur avec deux extrémités; les bras poussants (361) sont courbés, chacun s'étend à partir des extrémités du plat supérieur et chacun a un trou de pivotement (362) en alignement avec l'autre; et le palier de pivotement (35) de l'ensemble de déclenchement (30) est monté à travers les trous de pivotement (362) dans les bras poussants (361), afin de relier à pivotement l'élément de poussée (36) au levier de déclenchement (31).

4. Agrafeuse selon la revendication 3, dans laquelle l'ensemble de magasin (20) comporte un capuchon de magasin (23) avec un dessus et un crochet (231) formé sur le dessus du capuchon de magasin (23); et le plat supérieur de l'élément de poussée (36) a un tenon d'engagement (363) qui engage le crochet(231) sur le capuchon de magasin (23).

5. Agrafeuse selon la revendication 4, dans laquelle le levier de déclenchement (31) a un onglet d'entraînement d'agrafe (32), qui est monté dans une extrémité avant du levier de déclenchement (31) et engage le capuchon de magasin (23) de façon coulissante; et un ressort de déclenchement (33) est adjacent au levier de déclenchement (31) et au capuchon de magasin (23) et est monté entre ceux-ci.

6. Agrafeuse selon la revendication 1, dans laquelle le levier auxiliaire (34) a deux panneaux latéraux, qui s'étendent vers le bas d'un dessus du levier auxiliaire (34) et sont formés sur ceci; le rail du levier auxiliaire (34) comporte deux fentes (342), chacune définie à travers les panneaux latéraux; et deux extrémités du palier de pivotement (35) de l'ensemble de déclenchement (30) sont chacune tenues de façon coulissante dans les fentes (342) dans les panneaux latéraux du levier auxiliaire (34).

7. Agrafeuse selon la revendication 1, dans laquelle le levier de déclenchement (31) a deux trous de pivotement (321), définis dans un dessus du levier de déclenchement (31) et alignés l'un à l'autre; et le palier de pivotement (35) de l'ensemble de déclenchement (30) est monté à travers les trous de pivotement (321) dans le levier de déclenchement (31).

8. Agrafeuse selon la revendication 7, dans laquelle la base de soutien (10) comporte un plateau de fond oblong (11) avec une extrémité avant, une extrémité arrière, une paire de trous guides (111) définis dans l'extrémité avant du plateau de fond (11), et un trou de montage (112) défini dans l'extrémité avant du plateau de fond (11); la base coulissante (41) a plusieurs tenons d'engagement (411), qui sont formés sur un fond de la base coulissante (41) et font saillie de celui-ci et engagent de manière coulissante les trous guides (111) et le trou de montage (112) dans le plateau de fond (11) de la base de soutien (10).

9. Agrafeuse selon la revendication 8, dans laquelle la base de soutien (10) a deux langues de pivotement (114) formés sur le plateau de fond (11) de la base de soutien (10); et la base mobile (34) a deux tronçons de pivotement (432), qui sont formés dans une extrémité arrière de la base mobile (43) et reliés de manière à pouvoir tourner avec les langues de pivotement (114) sur la base de soutien (10), afin de relier à pivotement la base mobile (43) avec la base de soutien (10).

10. Agrafeuse selon la revendication 9, dans laquelle la base coulissante (41) a une poutre contigüe (415) formée sur une extrémité avant de la base coulissante (41); et la base mobile (43) a un flanc (434) contigüe formé sur un fond dans l'extrémité avant de la base mobile (43), et qui aboutit à la poutre contigüe (415) sur la base coulissante (41).

11. Agrafeuse selon la revendication 1 ou 10, comportant en outre un support de base (50), monté sur un fond de la base de soutien (10) et qui a une extrémité avant et un canal de coulissement (54) défini dans l'extrémité avant du support de base (50); et l'élément d'enclume (45) est monté de façon mobile dans le canal de coulissement (54) dans le support de base (50).

Drawing