EP1016502B1 - Stapling device - Google Patents

Abstract

The stapler has staples pressed up by a spring in a magazine, ejected by an ejection blade through an ejection channel, below which is a clamping plate with indentations. The upper surface of the stapling plate (1) has an indentation (2) for outer or inner stapling and a slit-like breakthrough (3) for flat clinching. The stapling plate may have outer gripping edges projecting over a platform (9) on the baseplate.

Description

The invention relates to a stapler according to the preamble of claim 1. The invention also relates to a stapler according to the preamble of claim 12. Such a stapler is known from US-A-2 267 990.

In Flatclinch stapling the legs of the staples penetrate the material to be stapled vertically and are then bent at right angles, ie the free leg lengths are bent almost parallel in the plane of the staple. From US 5 516 025 a stapler of the indicated type is known, which is a Heftgutauflage with slot-like breakthrough with an associated Device for Flatclinch stapling has. These staplers have also proven themselves, as the staplers, the stapling plate according to DE-OS 21 19 484 has on its upper side deformation embossments for legs of the ejected staples. Such a stapler is also known from US-A-2 267 990. The stapler described there is suitable to perform either an external or internal stapling.

The disadvantage here is that the legs of the staples are deformed like an arc after the penetration of the staple in the embossing. The bent below the stapled Guts leg wear by their shape, so that when you place them in a folder unwanted orders. Although this deficiency is not present in Flatclinch stapling, however, this stapling is not suitable for stapling stapled items of lesser thickness, such as some sheets of paper, since the risk of unintentional loosening of the staple can not be ruled out.

The invention has for its object to provide a stapler which improves the aforementioned disadvantages of the prior art.

This object is achieved in a stapler of the indicated type in that the stapler additionally has a device for Flatclinch stapling. It is advantageous if the stapling plate has outer protruding profiled grip edges. In an alternative embodiment, the stapling plate C-shaped cross-section and can be guided with their mutually aligned inner webs in associated guide grooves, wherein the guide grooves are closed in the longitudinal direction on one side and thus serve as a stop of a position.

In an embodiment of the invention, the stapling plate is formed in two parts, wherein advantageously a part fixed and part is arranged displaced or foldable. In a preferred embodiment, the hinged part for external or internal stitching is arranged via a hinge connection. Conveniently, the hinged part in functional and standby position can be locked via a clip connection. It is possible to arrange the hinged part on the base plate. The foldable part can advantageously be mounted on the base plate via a bend.

In a variant of the task according to the invention can also be achieved in that the stapling plate fixed to the base plate and the upper part with the magazine and the impact knife displaced and / or are mounted pivotably, in which case the stapler additionally has a device for Flatclinch stapling , It is possible to store the upper part with the magazine and the impact knife displaceable in a slot of the bearing block, wherein the

Long hole runs parallel to the underside of the base plate. Conveniently, the upper part is connected via the sliding connection axis to the base plate. In an embodiment of the invention, the length of the slot corresponds to the distance between the slot-like opening and the deformation embossments. Advantageously, the central distance of the displaceable connecting shaft in the end positions corresponds to the central distance between the slot-like opening and the embossings. In a preferred embodiment, the connection axis is associated with at least two detent positions in the oblong hole, wherein a detent element, preferably a detent spring, is arranged for holding the connection axis in the selected position in the oblong hole.

For pivotable mounting according to the invention provided for receiving the upper part with the magazine and the knuckle bearing block is arranged horizontally pivotable, wherein the Verschwenkweg of the upper part is adapted in the region of the ejection channel lying in alignment slot-like opening and the deformation embossing. It is possible to raise the bearing block for pivoting each of a Verrastungsstellung. For latching in the respective position corresponding latching elements can be arranged on the underside of the bearing block and on the top of the base plate. In a preferred embodiment, the bearing block is pivotable about an arranged on the base plate pivot bearing.

Fig. 1

eine isometrische Darstellung einer auf einer Grundplatte angeordneten verschiebbaren Heftplatte;

Fig. 2

eine Draufsicht auf eine drehbare Heftplatte;

Fig. 3

eine Draufsicht auf eine verschiebbare Heftplatte;

Fig. 4

eine Seitenansicht eines Heftgeräts mit klappbarer Heftplatte für Nadelheftung;

Fig. 5

eine Draufsicht auf eine klappbare Heftplatte für Nadelheftung;

Fig. 6

eine Variante zu Figur 4, jedoch mit vorderer Abwinklung der klappbaren Heftplatte für Nadelheftung und Gelenkanordnung auf der Grundplatte;

Fig. 7

eine Draufsicht auf eine Heftplatte nach Figur 6;

Fig. 8

eine Seitenansicht eines Heftgeräts mit verschiebbarem Oberteil und

Fig. 9

eine isometrische Darstellung eines Heftgeräts mit verschwenkbarem Oberteil.

Embodiments of the invention are illustrated in the drawings and are explained in more detail below. Show it:

Fig. 1

an isometric view of a slidable stapling plate arranged on a base plate;

Fig. 2

a plan view of a rotatable stapling plate;

Fig. 3

a plan view of a displaceable stapling plate;

Fig. 4

a side view of a stapler with hinged stapling plate for Nadelheftung;

Fig. 5

a plan view of a hinged stapling plate for Nadelheftung;

Fig. 6

a variant of Figure 4, but with front angling the hinged stapling plate for needle stitching and hinge assembly on the base plate;

Fig. 7

a plan view of a stapling plate of Figure 6;

Fig. 8

a side view of a stapler with sliding top and

Fig. 9

an isometric view of a stapler with swivel top.

According to FIG. 1, a stage 9 intended to receive the stapling plate 1 is arranged on a base plate 8 of the stapler. The stapling plate 1 has a double embossing 2 for an outer stitching and a slot-like opening 3 for a Flatclinch stitching. The grip edges 4 have a profiling for better handling when moving the stapling plate 1 in the desired functional position. The guide grooves 10 are closed to the front of the stapler and thus form a stop limit for the stapling plate 1. The equivalent stop limit on the other side is formed by a stop pin 11.

While the stapling plate 1 according to FIG. 1 is displaceable into the respective working position, a rotatable stapling plate 1 is shown in FIG. Another variant with two-part stapling plate 1 is shown in Figure 6. The provided with the slot-like breakthrough 3 part of the stapling plate 1 is part of the stage 9. The provided with the coins 2 part is hinged. The foldable part 6 of the stapling plate 1 is connected to a hinge connection 7. The foldable part 6 is unfolded when the Flatclinch stapling in the ready position. For functional position of the hinged part 6 is folded onto the fixed part 5 of the stapling plate 1, wherein in this position a Flatclinch-stitching is not possible. The foldable part 6 can be locked in functional and standby position via a clip connection in the respective position. According to Figure 6, the hinged part 6 has a front bend 12, which rests on the base plate 8.

As shown in FIG. 8, the upper part 13 with the magazine and the impact knife is pivotably mounted in a slot 14 of the bearing block 15. This elongated hole 14 extends parallel to the underside of the base plate 8. The upper part 13 is connected to the base plate 8 via the displaceable connecting shaft 16. The central distance y of the displaceable connecting shaft 16 in the end positions corresponds to the central distance x between the slot-like opening 3 and the embossings 2. To hold the connecting shaft 16 in the selected position, a detent element in the form of a detent spring 17 is arranged in the slot 14.

According to FIG. 9, the bearing block 15 provided for receiving the upper part 13 with the magazine and the impact knife is arranged horizontally pivotable, wherein the pivoting path of the upper part 13 in the region of the ejection channel is adapted to the slot-like opening 3 and the deformation embossings 2 located in alignment. The bearing block 15 is arranged pivotably about an arranged on the base plate 8 pivot bearing 18.

List of reference signs:

1

clip plate

2

embossing

3

slit-like breakthrough

4

gripping edges

5

fixed part of 1

6

hinged part of 1

7

articulation

8th

baseplate

9

stage

10

guide

11

stop pin

12

angling

13

top

14

Long hole

15

bearing block

16

connecting axis

17

detent spring

18

pivot bearing

x

distance

y

distance

Claims (25)

1. Stapler having staples guided in a magazine which are subject to spring-loading and can thereby be fed to an ejection passage, and the staple situated in the region of the ejection passage can be ejected from the ejection passage by a driver blade and driven through the material to be stapled, and below the ejection passage there is a support (1) for the material for stapling having a slot-like perforation (3), the support (1) for the material for stapling being an anvil (1, 6, 9) of rotatable or displaceable or divided form and the anvil (1, 6, 9) having on its upper face grooves (2) for deforming the legs of the staples, characterised in that the stapler has an arrangement for flat clinch stapling.
2. Stapler according to claim 1, characterised in that the anvil (1) has outer, projecting edges for gripping (4).
3. Stapler according to claim 2, characterised in that the edges for gripping (4) have profilings.
4. Stapler according to one of claims 1 to 3, characterised in that the anvil (1) is C-shaped in cross-section and can be guided, by its inner lips which point towards one another, in associated guide grooves (10).
5. Stapler according to one of claims 1 to 4, characterised in that the guide grooves (10) are closed off at one end in the longitudinal direction and thus act as an abutment defining a position.
6. Stapler according to one of claims 1 to 5, characterised in that the anvil (1) is formed in two parts.
7. Stapler according to claim 6, characterised in that one part of the anvil (1) is fixed and one part is arranged to be displaceable or foldable.
8. Stapler according to claim 6 or 7, characterised in that the foldable part (6) is positioned for temporary stapling or permanent stapling by means of a hinged connection (7).
9. Stapler according to one of claims 6 to 8, characterised in that the foldable part (6) can be held in the operating and standby position by means of a clip-action connection.
10. Stapler according to claim 8 or 9, characterised in that the foldable part (6) is arranged on the bottom arm (8).
11. Stapler according to claim 10, characterised in that the foldable part (6) is supported on the bottom arm (8) by means of an angled portion (12).
12. Stapler having staples guided in a magazine which are subject to spring-loading and can thereby be fed to an ejection passage, and the staple situated in the region of the ejection passage can be ejected from the ejection passage by a driver blade and driven through the material to be stapled, and the ejection passage has associated with it, below, a support for the material for stapling in the form of an anvil (1) which is provided with a slot-like perforation (3) and with grooves (2) for deforming the legs of the staples, which grooves (2) are present on its upper face, characterised in that the anvil (1) is arranged in a fixed position on the bottom arm (8) and the upper body (13) having the magazine and the driver blade is mounted to be displaceable and/or pivotable and the stapler has an arrangement for flat clinch stapling.
13. Stapler according to claim 12, characterised in that the upper body (13) having the magazine and the driver blade is mounted to be displaceable in a slotted hole (14) in the mounting yoke (15).
14. Stapler according to claim 13, characterised in that the slotted hole (14) extends parallel to the underside of the bottom arm (8).
15. Stapler according to one of claims 12 to 14, characterised in that the upper body (13) is connected to the bottom arm (8) via the displaceable connecting pin (16).
16. Stapler according to one of claims 12 to 15, characterised in that the length of the slotted hole (14) corresponds to the distance between the slot-like perforation (3) and the deforming grooves (2).
17. Stapler according to claim 16, characterised in that the distance (y) between the centres of the displaceable connecting pin (16) when in the end positions corresponds to the distance (x) between the centres of the slot-like perforation (3) and the grooves (2).
18. Stapler according to one of claims 12 to 17, characterised in that the connecting pin (16) has at least two latched positions assigned to it in the slotted hole (14).
19. Stapler according to one of claims 12 to 18, characterised in that a latching element is positioned to hold the connecting pin (16) in the selected position in the slotted hole (14).
20. Stapler according to claim 19, characterised in that the latching element is a latching spring (17).
21. Stapler according to claim 12, characterised in that the mounting yoke (15), which is intended to receive the upper body (13) having the magazine and the driver blade, is arranged to be pivotable horizontally.
22. Stapler according to claim 21, characterised in that the travel in displacement of the upper body (13) in the region of the ejection passage is adjusted to suit the slot-like perforation (3) and the deforming grooves (2), which are in line with one another.
23. Stapler according to claim 21 or 22, characterised in that, to allow it to be pivoted, the mounting yoke (15) can be lifted from each located positions.
24. Stapler according to claim 23, characterised in that corresponding locating members are arranged on the underside of the mounting yoke (15) and the upper face of the bottom arm (8).
25. Stapler according to one of claims 21 to 24, characterised in that the mounting yoke (15) is arranged to be pivotable about a pivot mounting (18) arranged on the bottom arm (8).

Images