EP1602449B1 - Magazine for fastening elements for a fastening tool and fastening tool with magazine for fastening elements - Google Patents

Description

The present invention relates to a fastener magazine referred to in the preamble of claim 1 and a setting device with fastener magazine referred to in the preamble of the independent claim 10. Art Such setting tools are used for driving, in fastener magazines stockpiled fasteners, such as nails, Bolts, pins, etc. used in concrete, steel, wood or similar. The setting devices can be operated by means of liquid, gaseous or solid fuels or by pneumatic, mechanical or electropneumatic drives. In particular, the invention relates to a fastener magazine for combustion-powered setting tools and a hand-held setting tool with fastener magazine.

From the DE 198 31 060 a nail magazine on a setting tool is known which protrudes laterally from a guide tube. The nail magazine has a guide rail with a guide channel for receiving fastening elements. On the guide rail, a locking element is pivotally mounted, which protrudes in a locking position with a guide portion in the inside width of the guide channel, whereby the displaceability of the present in the nail magazine fasteners is limited against the setting direction.

A disadvantage of this known nail magazine for a setting tool is the susceptibility of the locking element against lateral acceleration which cause high wear on the pivot bearing point.

The object of the present invention is to develop a setting tool of the aforementioned type, which avoids the aforementioned disadvantages and is functionally reliable.

This object is achieved according to the invention by the measures mentioned in the characterizing part of claim 1, which have the following special significance.

The guide element of the fastener magazine has two spaced apart in the longitudinal direction of the guide member bearing portions, which cooperate for the transfer of the guide portion of the release position to the locking position and from the locking position to the release position with two fixed control cushions.

By this measure, a bearing of the guide element is achieved, which is insensitive to lateral acceleration and allows safe transfer of the guide portion of the release position in the locking position and from the locking position to the release position. In the locking position, a substantially full-surface contact of the guide area is possible on the or the stop edges of the fasteners or the magazine strip.

It is advantageous if the guide element is acted upon elastically via at least one spring element in the direction of its locking position. As a result, an unintentional transfer of the guide element is prevented in the release position and allows a secure hold in the locked position.

Advantageously, the guide element is designed as an elongated guide rail, whereby a slender geometry of the fastener magazine and in particular its guide housing is possible.

Furthermore, it may be advantageous if the guide element is displaceable parallel to the guide space in its longitudinal direction. By this measure, the guide element can be moved via the sliding element or the transport slide during transfer of the sliding element in the discharge / loading position. It is only necessary a temporary coupling to the sliding element.

It may also be favorable, if the guide element is formed as a punched-bent part made of sheet metal, whereby the guide element is inexpensive to produce.

Advantageously, a connection area for fixing the fastener magazine is provided on a bolt guide of a setting device, whereby the fastener magazine can be easily arranged on a setting tool.

In a cost-effective variant to be produced, the control slides are arranged directly on the guide housing and in particular formed there. The control slots advantageously have slopes or inclined surfaces for lifting the guide element from the locking position. Due to the parallel arrangement of two control blocks, each with at least one inclined surface, the guide element can be lifted without jamming and parallel to the guide space from its locking position. The bevels or inclined surfaces are preferably formed identically according to inclination angle, distance to the guide space and length.

From a manufacturing point of view, it is favorable if the guide housing is designed as a plastic molded part.

The advantages according to the invention also result for a hand-held setting tool in which a fastening element magazine according to the invention is arranged in the region of the receptacle for fastening elements. The receptacle for the fasteners is advantageously arranged in a bolt guide and the fastener magazine is further advantageously attached with its connection area on the bolt guide.

Further advantages and measures of the invention will become apparent from the dependent claims, the following description and the drawings. In the drawings, the invention is shown in one embodiment.

Fig. 1

ein erfindungsgemässes Setzgerät mit Befestigungselemente-Magazin in Seitenansicht,

Fig. 2

einen Schnitt entlang der Linie II - II aus Figur 1, mit dem Befestigungselemente-Magazin in einer Verriegelungsstellung,

Fig. 3

einen Schnitt analog zu Figur 2, mit dem Befestigungselemente-Magazin in einer Freigabestellung,

Fig. 4

einen Schnitt entlang der Linie IV - IV aus Figur 1, mit dem Befestigungselemente-Magazin in der Freigabestellung.

Show it:

Fig. 1

an inventive setting device with fastener magazine in side view,

Fig. 2

a section along the line II - II off FIG. 1 with the fastener magazine in a locked position,

Fig. 3

a section analogous to FIG. 2 with the fastener magazine in a release position,

Fig. 4

a section along the line IV - IV off FIG. 1 , with the fastener magazine in the release position.

In Fig. 1 an inventive fastener magazine 20 is shown on a setting device 10. The setting device 10 has a housing 11, with a molded handle 12 on which a trigger switch 13 for triggering a setting operation is located. The setting device 10 also has a setting network 14, which is not described in more detail here and known to the person skilled in the art in various configurations. In the setting direction 52, a pin guide 15 adjoins the setting mechanism 14, which has a receptacle 16 for fastening elements 40 to be set (compare, in particular, FIG Fig. 4 ). The fastener magazine 20 in this case has an annular connection area 23, which sits on the bolt guide 15 of the setting tool 10. But it is also possible to design the fastener magazine such that the bolt guide is part of the fastener magazine, and this unit is connected via a special coupling or a screw connection with the setting tool.

The structure of the fastener magazine 20 will now be described with reference to FIGS. 2 to 4 explained in more detail. The fastener magazine 20 has a guide housing 21 in which a channel-like guide space 22 is formed. This guide space 22 is open on the one hand to the receptacle 16 or to the connection area 23 and on the other to the setting tool 10, ie opposite to the setting direction, slit-like open, as in particular from Fig. 4 can be seen.
In the FIGS. 2 to 4 There is a magazine strip 42 with fasteners 40 in the guide space 22. The magazine strip 42 is biased by a sliding element 24 which is acted upon by a designed as a scroll spring transport spring 25 in the transport direction for receiving 16.

The magazine strip 42 has a stop edge 41, which in Fig. 2 lies behind a guide portion 27 of a guide element 26 designed as a guide rail. In this locking position 33 of the guide element 26, in which its guide portion 27 projects into the guide space 22, the magazine strip 42 can not be removed from the guide space 22 of the fastener magazine 20. Furthermore, the magazine strip 42 is guided in this locking position 33 without jamming in the guide space 22.

The guide member 26 is slidably mounted on the guide housing 21 along its longitudinal axis. At its two ends, the guide member 26 each have bearing portions 28, 29 which are guided on control slots 30, 31 which are formed on the guide housing 21. By way of a spring element 32, the guide element 26 is elastically acted upon in the direction of its locking position 33 and its bearing sections 28, 29 are pressed against the control cams 30, 31.

In Fig. 2 is designed as a transport slide slide element 24 dash-dotted lines shown in a transport position in which the transport spring 25 is stretched, and shown with solid lines in a second position in which the sliding element 24 just comes into contact with a bearing portion 29 of the guide element. The sliding element 24 was in this case manually offset in the direction of the arrow 50.

To lift the guide element 26 with its guide portion 27 from the guide space 22, the sliding element 24 still has to be moved a little further in the direction of the arrow 50. Here, the bearing portions 28, 29 are taken from the sliding element 24 and moved on the inclined surfaces of the control slots 30, 31 until they rest on a plateau surface, as seen from Fig. 3 is apparent. The guide member 26 with its guide portion 27 is thereby excavated in the direction of the arrow 51 from the guide space 22 and is now in its release position 34. In this release position 34 of the magazine strip 42 can now through the rear opening 35 of the guide housing 21 from the fastener magazine 20 are removed and / or a new magazine strip 42 are inserted into the fastener magazine 20.

Claims (11)

1. A fastening element magazine for hand-guided fastening tools for driving fastening elements such as nails, bolts and pins into a surface,

   with a guide housing (21) and a guide space (22) arranged in it for receiving fastening elements (40) which form at least one stop edge (41), wherein the guide space (22) is open towards at least one connection region (23) for the fastening tool,

   with a spring loaded sliding element (24) for the conveying feed of the fastening elements (40),

   and with an oblong guide element (26) on which is formed a guide region (27) which, in an interlocking position (33), projects into the guide space (22) for positive interaction with at least one stop edge (41) of at least one fastening element (40), and which, in a release position (34), is pulled out of the guide space (22) to release the or each stop edge (41),

   characterised in that
   the guide element (26) has two bearing sections (28, 29) arranged a certain distance from each other in the longitudinal direction of the guide element (26), wherein two control gates (30, 31) are provided fixed on the housing, with which gates the bearing sections (28, 29) interact to transfer the guide region (27) from the release position (34) to the interlocking position (33) and from the interlocking position (33) to the release position (34).
2. The fastening element magazine according to Claim 1, characterised in that the guide element (26) is loaded elastically by at least one spring element (32) in the direction of its interlocking position (33).
3. The fastening element magazine according to Claim 1 or 2, characterised in that the guide element (26) is designed as an oblong guide rail.
4. The fastening element magazine according to one of Claims 1 to 3, characterised in that the guide element (26) is displaceable parallel to the guide space (22) in its longitudinal direction.
5. The fastening element magazine according to one of Claims 1 to 4, characterised in that the guide element (26) is designed as a steel plate bending/punching part.
6. The fastening element magazine according to one of Claims 1 to 5, characterised in that a connection region (23) is provided for fixing the fastening element magazine (209)( to a bolt guide (15) of a fastening tool (10).
7. The fastening element magazine according to Claim 1, characterised in that the control gates (30, 31) are arranged on the guide housing (21) and are provided with slopes.
8. The fastening element magazine according to Claim 7, characterised in that the slopes are designed identically in terms of angle of inclination, distance from the guide space and length.
9. The fastening element magazine according to Claim 1, characterised in that the guide housing (21) is designed as a plastic moulding.
10. A hand-guided fastening tool for driving fastening elements such as nails, bolts and
    pins into a surface, with a fastening unit (14) arranged in a housing (11) and with a support (16) for fastening elements (40), characterised in that a fastening element magazine (20) according to one of Claims 1 to 9 is arranged in the region of the support (16) for fastening elements (40).
11. The hand-guided fastening tool according to Claim 10, characterised in that the support (16) is arranged in a bolt guide (15) and in that the fastening element magazine (20) is placed with its connection region (23) on the bolt guide (15).

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