EP2105259A2 - Setting device - Google Patents

Abstract

The setting device (10) has a propelling body (13) displaceable in a guide (12). A pin guide (15) is arranged in an opening part (14). A connecting unit has latching fastener (30) acting between a magazine (20) and housing (11). The latching fastener has a latch link (33) and a counter latch element (34) which is brought to a latching position (35). The latching fastener presses the magazine against the opening part in the latching position.

Description

The present invention relates to a setting tool referred to in the preamble of claim 1. Art Such setting tools can be operated with solid, gaseous or liquid fuels, with compressed or compressed air or electrical energy.

In such setting tools, in which a propellant such as a setting piston or plunger drives the fastener into the ground, the propellant body is accelerated in the direction of the fastener. In the combustion-driven setting tools of the propellant body z. B. driven by the combustion gases. By the pressure acting on the propellant body, this is accelerated in the direction of a fastener, meets this and drives the element into the ground. The fasteners can be stored in a magazine that is arranged in the region of a mouth part of the setting device.

From the DE 33 37 278 A1 is a hand-held setting tool with a drive body for driving fasteners known on the housing in the region of the mouth part a magazine for the fasteners is fixed by connecting means which is pivotable about a pivot point against the force of a spring.

The disadvantage here, however, that this pivotal arrangement of the magazine on the housing of the setting device allows an undesirable entry of dirt in the magazine, which can lead to transport problems. Furthermore, attaching the magazine to the housing is expensive.

The object of the present invention is therefore to develop a setting tool of the aforementioned type, which avoids the aforementioned disadvantages, allows easy attachment of the magazine to the housing and a possible close seal to the housing out, which complicates a dirt entry into the magazine.

The object of the invention is achieved by a setting device having the features of the main claim. Accordingly, the connecting means have a latching closure acting between the magazine and the housing, which has a latching member and a counter-latching element, which can be brought into a latching position, wherein the latching closure in the latching position presses the magazine against the muzzle part. As a result, the magazine is on the one hand quickly mounted, since the connecting means designed as a snap closure snaps in the manner of a snap connection when pressing the magazine against the housing of the setting tool automatically and connects the magazine with the housing. At the same time a tight connection between the mouth part and the pin guide on the one hand and the connecting portion of the magazine on the other hand is created by the pressing of the magazine against the mouth part or the bolt guide arranged thereon. A seam between the magazine and the mouth part is tightly closed. Accordingly, in the position of the magazine arranged at the mouth part, no particles can pass into the magazine via the opening of the guide channel and also not into the pin guide open towards the magazine. A particular advantage is further that, in the event that the setting tool is accidentally dropped, the snap lock can jump open and the magazine can at least partially solve the setting tool, whereby the risk of component fractures can be reduced.

Advantageously, the latching closure on at least partially along a longitudinal extent of the magazine displaceable and acted upon by at least one elastic element slide (on one of the parts of the housing and magazine), which carries the locking member, wherein the acted upon by the elastic member slide in the locking position the Magazine presses against the mouth part. By at least partially displaceable in the longitudinal direction of the magazine slide a relatively high pressure force of the magazine can be achieved against the mouth part. The counter-latching element is arranged on the other part of housing and magazine.

In an advantageous embodiment of the invention, the slider is arranged on the magazine and elastically acted upon by the at least one elastic element in a direction away from the connecting portion of the magazine, wherein the locking member facing away from the connecting portion and the housing facing the end of the slider and the counter-latching element on the housing is arranged. This measure allows a simple 2-hand operation when removing the magazine from the setting device. The user holds the setting tool in one hand while the other Hand grasps the magazine and simultaneously actuates the slider and opens the snap closure.

The slider could alternatively be arranged on the housing of the setting device.

It is also advantageous if further connecting means are provided between the mouth part and the magazine, which comprise a pivot bearing with a pivot axis on the side facing away from the housing of the magazine, wherein the pivot axis outside the mouth part and outside of the magazine and at a right angle to a defined by the bolt guide and the magazine level lies. As a result, the attachment of the magazine at the mouth part and the housing of the setting device is made possible by a simple pivoting of the magazine around the pivot bearing of the setting device around. By lying outside the mouth part and outside of the magazine pivot axis, the magazine can be pivoted collision-free and fully flush with the mouth part.

It is also advantageous if the pivot bearing has a curved bearing surface on the connecting portion and a complementary curved counter-bearing surface on the mouth part. Preferably, the radii of curvature of the curved bearing surface and the curved abutment surface are the same. As a result, a simple attachment of the two bearing parts to each other and thus the magazine on the mouth part and a good pivoting guide during the pivoting operation allows. Furthermore, a maximum contact area is possible, which has a low surface pressure result. Bumps or blows are better absorbed by the pivot bearing.

In an advantageous embodiment, the bearing surface is concave and the abutment surface convexly curved, which allows for the attachment of the magazine at the mouth part pivoting of the magazine to the housing of the setting device.

Optimum tuning of the pivot bearing is achieved when the bearing surface and the abutment surface in each case a bow angle [alpha1], [alpha2] spanning from a minimum of 25 ° to a maximum of 185 °.

In the drawings, the invention is shown in one embodiment.

Fig. 1

den Mündungsbereich eines erfindungsgemässen Setzgerätes in teilweiser Schnittansicht, mit einem Magazin für Befestigungselemente,

Fig. 2

den Mündungsbereich des Setzgerätes aus Fig. 1, mit dem Magazin in einer teilweise vom Gehäuse des Setzgerätes gelösten Position,

Fig. 3

den Mündungsbereich des Setzgerätes aus Fig. 1, mit dem Magazin in einer vom Mündungsteil und vom Gehäuse des Setzgerätes gelösten Position.

Show it:

Fig. 1

the mouth region of a setting device according to the invention in a partial sectional view, with a magazine for fastening elements,

Fig. 2

the mouth area of the setting device Fig. 1 , with the magazine in a partially detached from the housing of the setting device position,

Fig. 3

the mouth area of the setting device Fig. 1 , with the magazine in a position detached from the mouth part and from the housing of the setting device.

In the Fig. 1 to 3 the mouth region of a hand-held setting tool 10 is reproduced. The setting device 10 is z. B. electrically or combustion-powered and has a arranged in a housing 11 network with a setting as a piston driving body 13 which is guided in a guide 12 displaceable. In the FIGS. 1 to 3 the propellant body is shown in its initial position, in which the propellant body 13 is ready for a setting process.

Coaxially to the guide 12 extending a arranged on a mouth part 14 bolt guide 15 is arranged on the setting tool 10, which is facing away from the housing 11 free end to a workpiece attachable. The bolt guide 15 serves to receive and guide fasteners 50 (indicated in FIG Fig. 1 A fastening element 50 located in the bolt guide 15 is driven into a workpiece during a setting process via the drive element 13 moving in the direction of the free end of the bolt guide 15 (not shown in the figures) ).

Laterally projecting from the mouth part 14, a magazine designated as a whole with 20 is releasably arranged on the setting tool 10. In the magazine 20, a guide channel 24 is arranged for fastening elements 50 which is open to the bolt guide 15, so that in the Fig. 1 It can be seen on the setting device 10 fixed position of the magazine 20, a transport of fasteners 50 from the guide channel 24 in the pin guide 15 is possible. At its end facing the mouth part 14, the magazine 20 has a connection section 21 designed as a connecting piece, which has a concave bearing surface 22 on a first narrow side 25, which together with a convex abutment surface 19 forms a pivot bearing 17 on a bearing block 18 of the mouth part 14, its pivot bearing axis S outside of the mouth part 14 and outside of the magazine 20 and at a right angle to a through the bolt guide 15 and the Magazine 20 defined level E lies. The bearing surface 22 and the abutment surface 19 are curved complementary to each other, and span an arc angle [alpha1], [alpha2] from a minimum of 25 ° to a maximum of 185 ° (see Fig. 1 ), to ensure optimum guidance of the surfaces to each other. The pivot bearing 17 is arranged on the side facing away from the housing 11 of the magazine 20.
About the pivot bearing 17, the magazine 20 is supported in the driving direction of the drive body 13 and in a direction perpendicular to the longitudinal extent of the bolt guide 15 relative to the mouth portion 14.
The first narrow side 25 of the connecting portion 21 and the magazine 20 with the concave bearing surface 22 is disposed opposite a second narrow side 26 of the connecting portion 21 and the magazine 20. On the second narrow side 26, a stop A is arranged in the region of the connecting portion 21, which rests in the setting device 10 fixed state of the magazine 20 at one edge of the mouth part 14 and over which the magazine 20 in one of the driving direction of the drive body 13 opposite direction relative to the Mouth part 14 is supported. On the second narrow side 26 in the region of the actual magazine body, a slide 31 of a latching closure, designated in its entirety by 30, is also arranged so as to be displaceable in a limited manner along a longitudinal extension of the at least partially straight magazine 20. The slider 31 is via at least one elastic element 32, such as. As a spring element, in a sliding direction away from the connecting portion 21 of the magazine 20 elastically acted upon. The slide 31 has at its end facing away from the connecting portion 21 at least one locking member 33, which with a counter-latching element 34 of the latching closure 30 on the housing 11 in a Fig. 1 apparent locking position 35 can be brought. In this detent position 35, the magazine 20 is securely fixed on the setting device 10 via the pivot bearing 17 in combination with the latching closure 30. About the elastically acted slide 31, the magazine 20 is acted upon in a direction perpendicular to the bolt guide 15 and pressed towards the mouth part 14, so that a seam 23 between the mouth part 14 and the bolt guide 15 on the one hand and the connecting portion 21 of the magazine 20 on the other is tightly closed. In this position arranged at the mouth part, no particles can pass through the opening of the guide channel 24 into the magazine 20 and also not into the magazine 20 open towards the bolt guide 15.

To remove the magazine 20 from the mouth part 14, the slider 31 is manually displaced against the force of the at least one elastic element 32 in the direction of the arrow 70 into an unlocking position 36, as in FIG Fig. 1 represented by the dashed lines shown slider 31. By this release of the locking connection between locking member 33 and Counter-locking element 34, the magazine 20 can now around the pivot bearing 17 with the virtual, located outside of the mouth part 14 and outside the magazine 20 pivot axis S around in the direction of the pivot arrow 71 (see Figures 2 and 3 ) are pivoted until the magazine 20 is completely detached from the mouth part 14 and free. To mount the magazine 20 on the setting tool 10, this process is carried out in the opposite pivoting direction until the latching closure 30 closes and the locking member 33 engages the counter-latching element 34.

Claims (7)

Setting device, for driving fasteners into a substrate, comprising a housing (11), with a driving body (13) displaceably guided in a guide (12), with a bolt guide (15) arranged in a mouth part (14),
and with a fastener magazine (20) which can be fixed detachably on the housing (11) and which can be attached to the mouth part (14) with a connection section (21) at its end facing the mouth part (14),
characterized,
in that the connecting means have a latching closure (30) which acts between the magazine (20) and the housing (11) and has a latching element (33) and a counter-latching element (34) which can be brought into a latching position (35), wherein the latching latch (30) in the detent position (35) presses the magazine (20) against the mouth part (14). Setting tool according to Claim 1, characterized in that the latching closure (30) has a slide (31) which can be displaced at least partially along a longitudinal extent of the magazine (20) and is acted upon via at least one elastic element (32), which carries the latching element (33), wherein the over the elastic element (32) acted slider (31) in the detent position (35) presses the magazine (20) against the mouth part (14). Setting tool according to claim 1 or 2, characterized in that the slide (31) on the magazine (20) is arranged and on the at least one elastic element (32) in a direction away from the connecting portion (21) of the magazine (20) is acted upon elastically , wherein the latching member (33) on one of the connecting portion (21) facing away from the housing (11) facing the end of the slide (31) and the counter-latching element (34) on the housing (11) is arranged. Setting tool according to claim 1, characterized in that further connecting means are provided between the mouth part (14) and the magazine (20), which has a pivot bearing (17) with a pivot axis (S) on the housing (11). The opposite side of the magazine (20), wherein the pivot axis (S) outside the mouth part (14) and outside of the magazine (20) and at a right angle to a through the bolt guide (15) and the magazine (20) defined plane ( E) is located. Setting tool according to claim 4, characterized in that the pivot bearing (17) has a curved bearing surface (22) on the connecting portion (21) and a complementary curved abutment surface (19) on the mouth part (14). Setting tool according to claim 5, characterized in that the bearing surface (22) is concave and the abutment surface (19) is convexly curved. Setting tool according to claim 5 or 6, characterized in that the bearing surface (22) and the abutment surface (19) each encompass a bow angle ([alpha1], [alpha2]) of at least 25 ° to a maximum of 185 °.

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