EP4034340A1

EP4034340A1 - Nail driving tool, in particular compressed air nailer, movable guide element, stationary guide element, kit, and base for such a kit, and system and retrofitting system

Info

Publication number: EP4034340A1
Application number: EP21772686.8A
Authority: EP
Inventors: Stefan Siemers
Original assignee: Raimund Beck Nageltechnik GmbH
Current assignee: Raimund Beck Nageltechnik GmbH
Priority date: 2020-08-26
Filing date: 2021-08-26
Publication date: 2022-08-03
Anticipated expiration: 2041-08-26
Also published as: EP4034340C0; DE102020122342A1; WO2022043434A1; EP4034340B1; US20230311286A1

Abstract

The present invention relates to a nail driving tool, in particular a compressed air nailer, with a main body (2), which comprises a running tube (3) for guiding a nail to be driven into a workpiece and a firing pin driving the nail, the running tube (3) extending between a front free end (4), where the nail exits as it is driven into a workpiece, and a drive-side rear end. The invention also relates to a movable guide element (17) and to a stationary guide element (42), which can be mounted selectively to the nail driving tool.

Description

DESCRIPTION

Nail setting device, in particular pneumatic nail gun, movable guide element, stationary guide element, kit and base body for such a kit, and system and retrofit system

The present invention relates to a nail setting tool, in particular a pneumatic nail gun, with a base body which comprises a barrel for guiding a nail to be driven into a workpiece and a firing pin that drives it, with the barrel extending between a front free end over which the nail is driven when it is driven into a workpiece exits, and a rear end on the drive side, the barrel tube forming a firing channel on the inside along a firing channel axis and having an open front end section in which it only surrounds the firing channel over a partial peripheral section.

The invention also relates to a base body for a kit for subsequently attaching a guide element to a nail setting tool, the nail setting tool having a base body which includes a barrel for guiding a nail to be driven into a workpiece and a firing pin that drives it, with the barrel extending between a front free end through which the nail emerges when being driven into a workpiece, and a rear end on the drive side, the running tube forming a firing channel on the inside along a firing channel axis and having a front end section in which it surrounds the firing channel only over a partial circumferential section. In addition, the present invention relates to a movable guide element and a stationary guide element for detachable attachment to a nail setting tool or to a base body of a kit for subsequent attachment of a guide element to a nail setting tool.

Finally, the present invention relates to a nailing device and a movable guide element attached to it, and a kit for subsequently attaching a guide element to a nailing device, comprising a base body and a movable guide element attached to it. The invention also relates to a system comprising a nail setting device, a movable guide element and a stationary guide element, and a retrofit system comprising a base body, a movable guide element and a stationary guide element.

Nails are among the oldest known fasteners in construction technology, such as house construction, shipbuilding, armaments technology, etc., mostly in connection with wood as a material. A distinction must be made between nails made of metal, mostly iron or steel, and wooden nails, which have been increasingly used in recent years to connect one or more wooden components. Traditionally, nails are driven into the material to be nailed with a hammer. As a rule, this requires several hammer blows, with the risk of bending the nail if the nail head is not hit in the extension of the nail shank.

With increasing industrialization, the production speed is becoming more and more important for economic reasons. For this reason, tools were developed with which nails can be driven into the components to be connected more quickly than with a hand-held hammer. These include, above all, nail setting devices that are equipped with different drive con- cepts can be equipped. Pneumatic nailers, which are usually operated with pressures of 5 to 6 bar, are of particular importance. Driving speeds of around 25 meters per second can be achieved with such compressed air nailers.

Customary pneumatic nailers have a base body which includes a running tube for guiding a nail to be driven into a workpiece and a firing pin that drives it. In particular in the case of a modular pneumatic nail gun, the base body can form a device nose or be part of a device nose, to which a device for applying compressed air is connected at the rear. The running tube extends between a front free end, which is placed on the workpiece to drive in a nail, and a rear, drive-side end, which is fluidically connected to the device for applying compressed air, and forms a firing channel on the inside. To drive in a nail, compressed air is applied to the firing pin by manual actuation of a trigger or by automated actuation, so that it moves at high speed in the firing channel in the direction of the free end of the barrel and drives a nail into a workpiece.

Such compressed air nailers are particularly widespread for driving in metal nails. In recent years, pneumatic nailers have also been increasingly used to drive wooden nails directly into components to be connected without making a pilot hole. In order to increase the processing speed, nails are connected to form rigid or flexible nail strips, so that the nails can be automatically fed into the firing channel one after the other.

If a metal nail hits a hard spot in the workpiece to be connected, the nail is compressed and deformed. To deform the nail radially to the firing channel, the running tubes of commercially available compressed air nailers have an open front end section in which the running tube surrounds the firing channel only over a partial circumferential section. Since wooden nails do not have the same ductility as metal nails, when they hit a hard spot, the material compound dissolves, so that the wood fibers contained in the wooden nail, under the axial pressure from the firing pin, exert radial pressure on the nail due to their no longer aligned structure Exercise barrel of the nailer. It has been found that this pressure can exceed the strength of the components of the nail setting tool, in particular the running tube and the firing pin.

Furthermore, when feeding the wooden nails from a nail strip, the problem arises that they slip relative to one another in the nail strip due to vibrations of the setting tool, which can cause disruptions to the nail feed.

The object of the present invention is therefore to further develop a nail setting device of the previously known type in such a way that it is characterized by particular reliability and simple operation and in particular avoids the aforementioned disadvantages.

This object is achieved with a nail-setting device of the type mentioned at the outset in that the nail-setting device has fastening means which are designed and suitable, optionally a movable guide element which can be switched between a radially inner guide position with respect to the firing channel axis, in which the open front end section of the running tube partially closes and leads a nail to be driven in and the firing pin that drives it along the firing channel axis, and a radially outer deflection position in which a radial deflection occurs a nail to be driven in is possible, which can be pivoted about a pivot axis relative to the base body, or a stationary guide element which closes the open front end section of the barrel tube at least partially, in particular over the entire circumference and guides a nail to be driven in and the firing pin driving it along the firing channel axis, to be detachably attached to the base body.

Furthermore, the object on which the invention is based is achieved by a base body for a kit for subsequently attaching a guide element to a nail setting tool of the type mentioned at the outset, the base body having fastening means which are designed and suitable, optionally a movable guide element which rotates about a pivot axis relatively to the base body between a guiding position in which it is suitable to partially close the open front end section of the barrel and to guide a nail to be driven in and the firing pin driving it along the firing channel axis, and an alternative position in which a radial ejection of a nail to be driven in is possible , Can be pivoted, or a stationary guide element which is suitable for closing the open front end section of the running tube at least partially, in particular over the entire circumference, and a nail to be driven in and the nail driving it To guide the firing pin along the firing channel axis, to be detachably attached to the base body.

Accordingly, the object on which the invention is based is also achieved by a movable guide element for detachable attachment to a nail setting tool or a base body, which can be attached to a nail setting tool or a base body in such a way that it is between a radially inner guide position relative to the firing channel axis, in which it partially closed the open front end portion of the barrel closes and guides a nail to be driven in and the firing pin driving it along the firing channel axis, and a radially outer deflection position in which a radial expulsion of a nail to be driven in is possible, pivotable about a pivot axis relative to the base body. In a similar way, the invention provides for a stationary guide element of the type mentioned at the outset to be immovably attachable to a nailing tool or to a base body of a kit for subsequently attaching a guide element to a nailing tool in such a way that it at least partially closes the open front end section of the running tube and a nail to be driven in and the firing pin that drives it along the firing channel axis.

The invention is based on the fundamental idea of providing a movable or a stationary guide element at the front end section of the firing channel, which is partially open, depending on the type of nail to be driven in or the environmental conditions. Tests have shown that a stationary guide element is particularly advantageous for shorter nails, preferably those with a length of less than 65 mm, made of lignocellulosic material, for example wood, and enables reliable driving into a component. On the other hand, with longer nails it has proven to be advantageous to design the front end section of the firing channel in such a way that radial forces which can occur when a wooden nail collapses can be absorbed by a movable guide element functioning like a flap. The movable guide element is able to guide the wooden nail to be driven in and the firing pin in the direction of the open end section of the firing channel, and at the same time to give way to the side when radial forces occur as a result of a collapsing nail and thus absorb the radial forces of the nail and the firing pin. is preferred the movable guide element is designed in such a way that in its guide position it tightly guides a nail to be driven in and moves out of its guide position when the firing pin strikes, in order to intercept the firing pin in a defined manner and to avoid mechanical overloading of the firing pin and the mechanical components.

In principle, it is conceivable to provide a nail setting device directly with such a movable or stationary guide element. Using the kit according to the invention, it is also possible to subsequently equip existing nail setting devices with such guide elements.

In principle, the nail setting device according to the invention can also be constructed in a modular manner. In this case it can, for example, comprise a device nose which is at least partially formed by the base body. A device for generating and applying compressed air can be provided functionally separately from this device nose. For this purpose, connection means can be provided which make it possible to connect the base body to a device for applying compressed air. For example, a flange can be formed at the rear end of the base body.

Insofar as the individual components are described below, such as the movable guide element or the stationary guide element or the base body for a kit, the information relates to the installed state. If, for example, a (radial) inner face is spoken of in connection with a guide element, then what is meant is the face that points radially inward to the firing channel axis when the guide element is attached to a nail setting device. The fastening means of the nail setting device according to the invention or the base body according to the invention preferably comprise a fastening projection which is designed to engage in a corresponding recess of a movable guide element or a stationary guide element.

The fastening means of the nailing device or the base body of a kit for subsequently attaching a guide element to a nailing device can comprise a fastening hole which runs offset to the firing channel axis in order to be able to pivotably mount a movable guide element on the nailing device. In the case of a nail setting device according to the invention, the bore axis of the fastening bore can lie in a plane running perpendicularly to the firing channel axis. Accordingly, the bore axis of the fastening bore of the base body according to the invention can be designed in such a way that it lies in a plane running perpendicularly to the firing channel axis when the base body is attached to a nail setting tool.

Correspondingly, the movable guide element according to the invention can have bearing means in order to mount the movable guide element so that it can pivot relative to the base body of a nail setting device or on the base body of a kit. In concrete terms, these bearing means can comprise a bearing bore which completely penetrates the movable guide element, in particular in a rear area, and by means of which the guide element can be pivotably mounted on the nail setting tool or on the base body, for example via a bolt or a screw. In principle the same way, attachment means can be provided for a stationary guide element in order to detach the guide element on a nail setting device or on the base body of a kit for subsequent attachment of a guide element to a nail setting device to fix. These attachment means can comprise a retaining bore which passes through the stationary guide element, so that the guide element can be detachably attached to a nail setting tool or to a base body of a kit by means of a bolt or a screw or the like.

In the nail setting device according to the invention and the base body according to the invention, stop means can be provided in order to limit the movement of an attached movable guide element in the direction of the guide position and/or to position an attached stationary guide element relative to the base body or the base body.

The stop means can comprise at least one stop surface, which is formed on the nail setting device or on the base body and preferably faces the firing channel axis. It is also conceivable that two different stop surfaces are provided, which are stepped relative to one another, with one stop surface serving to limit the movement of the movable guide element in the direction of the guide position, and the other stop surface serving to position the stationary guide element.

Correspondingly, a counter surface can be formed on the movable guide element, which is preferably located in a rear section of the movable guide element, in particular is formed by a web, and can be brought into contact with a corresponding stop surface of the nail setting device or the base body. In other words, in the case of the movable guide element, the guide position is defined by the stop means, so that a movement of the guide element going beyond this into the firing channel is ruled out. The slings or the corresponding counter surface of the movable guide tion elements can be designed in such a way that the movable guide element does not touch the opposite section of the running pipe. In the event of a collapsing nail, wood fibers can escape through such a gap between the guide element and the running tube.

In a similar way, the stationary guide element according to the invention can have a contact surface which can be brought into contact with a corresponding stop surface of the nail setting tool or the base body of a kit for subsequent attachment of a guide element to a nail setting tool in order to close the stationary guide element on the nail setting tool or on the base body position. This configuration is based on the idea that clear positioning is possible by realizing a flat contact between the contact surface of the stationary guide element and the corresponding stop surface and at the same time arranging the holding bore in alignment with the fastening bore by means of a bolt or screw.

The nail setting device according to the invention can be designed such that the running tube surrounds the firing channel in an open front end section over a circumferential angle of at least 160° and/or at most 200°, preferably over a circumferential angle of 180°.

Furthermore, the nail setting device can have a feed device for nails, which defines a feed axis along which nails oriented parallel to one another are successively fed to the running channel in order to be driven into a workpiece. The feed axis preferably extends transversely to the firing channel axis. In a specific embodiment, the firing channel axis and the feed axis can enclose an acute angle to the rear, in particular an angle of at least 60° and/or at most 85°, preferably about 75°. The nail setting device can be designed in such a way that a guide rail is provided which extends parallel to the feed axis and runs in front of it, in order to support the nails to be fed at its tip. In the same way, a guide rail can be provided in the base body according to the invention for a kit, which is designed in such a way that, after the base body has been attached to the nail setting tool, it extends parallel to the feed axis and runs in front of it in order to support nails to be fed in at their tips. These embodiments are based on the idea of providing a rail that protrudes from the running tube and against which the tips of the nails to be fed can hit if they become detached from the nail strip. This prevents the nails from slipping out of the nail strip and blocking the supply of nails to the barrel channel.

The nail setting device according to the invention is preferably designed in such a way that the guide rail is formed in one piece with the base body. Alternatively, it is conceivable that the guide rail is releasably attached to the base body, in particular screwed to it. Similarly, in a base body according to the invention, the guide rail can be formed in one piece with the base body. It is also possible for the base body to be designed in multiple parts and for the guide rail to be screwed as a separate component, for example, to the rest of the base body.

If the guide rail and the base body of the nail setting tool or the base body of the kit are designed as separate components, a rearward-facing contact surface can be provided for support on a front end region of the base body or the base body, on which the guide rail rests. As a result, when screwed or otherwise fixed guide rail whose position is fixed so that slipping or rattling of the guide rail is excluded.

In order to improve the guidance of the nails to be fed along the feed axis, a longitudinal groove extending in the longitudinal direction with an in particular V-shaped cross section can be formed in the guide rail on the rear-facing side, wherein the opening angle of the cross section can be approximately 140°, for example .

In a further embodiment, the guide rail can have a feeding slope towards the rear at its outer end region radially to the firing channel axis, in order to avoid blocking of the nails to be fed. In other words, a feeding incline is provided in order to force nails that have already slipped a little out of the nail strip back into their correct position in the nail strip during feeding.

In a further embodiment of the nail setting device, the fastening means can be arranged directly on the guide rail at a radially inner end region. In the same way, the fastening means can be arranged on the guide rail, in particular on a radially inner end region of the guide rail, in a base body for a kit for subsequent attachment of a guide element to a nail setting device in which a guide rail is provided. In this way, the movable or the stationary guide element can be attached directly to the guide rail. The guide rail can engage in a central recess of the respective guide elements.

The central recess of the movable guide element and the guide rail can be designed in such a way that the guide rail fills the central recess over its entire width, so that practically there is no gap between the guide rail and the two webs which laterally delimit the central recess of the movable guide element. This can prevent a gap from being filled with wood fibers in the event of a collapsing nail and impairing the pivoting movement of the movable guide element.

In order to attach the base body or kit according to the invention to a nailing device, attachment means for attaching to a base body of a nailing device can be provided on the base body of the kit. In concrete terms, the attachment means can comprise threaded holes for screwing onto a nail setting tool. In order to position the base body on a base body of a nail setting device, a contact surface can be formed on the base body, which is intended to rest against a corresponding opposite edge of the base body of a nail setting device.

The movable guide element preferably has a linearly extending guide groove for guiding a nail to be driven in and a firing pin in an inner end face which points towards the axis of the firing channel when it is fastened to the nail setting device. A guide groove, which preferably extends in the direction of the firing channel axis when the movable guide element is in its guide position, enables stable guidance of a nail to be driven in, which slides along the movable guide element when being driven into a workpiece.

In a further embodiment, the guide groove can have a V-shaped cross section, the opening angle being in particular at least 60° and/or at most 120°, preferably approximately 90°. A V-shaped basic shape creates a nail with a circular cross-section Two-point support realized. With an opening angle of 90°, the support points are also on the contour of the nail offset by an angle of 90° to one another.

The end face, which points inward radially to the firing channel axis in the installed state, can have further surface sections in addition to the guide groove. A planar end face section preferably adjoins the guide groove on both sides, viewed from the center of the groove, with the two end face sections lying in particular in one plane. Further outwards, in the transition to the side surfaces delimiting the movable guide element, chamfered bevels can follow, which can be inclined, for example, by an angle of 15° to the flat end surface sections.

In order to enable a collapsing, radially deforming nail to be avoided, the rear end of the guide groove can open into a central recess which completely penetrates the movable guide element radially to the firing channel axis and separates two opposite webs projecting to the rear. In particular, the central recess can serve to remove wood fibers that are released when a nail collapses, so that a subsequent nail can be driven in directly afterwards without first cleaning the free end of the firing channel and the movable guide element. The width of the recess can be based on the diameter of the nail, in particular it can be larger than the diameter of the nail to be driven in and/or it can be about 6 mm. A rounding can be provided in the transition to the two webs projecting to the rear.

In a further embodiment of the movable guide element, the two webs can project backwards to different extents. On both sides of Guide groove can be provided in the transition to the webs inlet contours, which are preferably formed differently on both sides of the guide groove. Experiments have shown that the asymmetry in the design of the webs and the entry contours means that the firing pin cannot hit the movable guide element unfavorably when it slips off the nail head and can be damaged there if the nail collapses. Due to the geometric asymmetry of the movable guide element in the area of the webs and the inlet slopes, damage to the various components can be reliably prevented.

In concrete terms, the inlet contour can be stepped on one side and can comprise a front inlet slope and a rear inlet slope inclined outwards relative to this. The front inlet slope is preferably at an angle of at least 20° and at most 40°, preferably at 30°, to the inner face, the rear inlet slope at an angle of at least 50° and at most 70°, preferably at 60°, to the inner face . With such a stepped inlet contour on one side of the guide groove, high radial forces from a collapsing wooden nail can be efficiently absorbed. At the same time, the mechanical stresses on the firing pin and barrel are minimized and plastic deformation of the components is avoided.

For the same purpose, the transition between the front and rear run-in slopes can be rounded, with the rounding preferably having a radius of about 4 millimeters. Such a rounding between the two inlet bevels prevents a sharp-edged transition and thus the risk of material blocking. The front run-in slope and the rear run-in slope as well as a rounding formed between them can also extend at least partially into the area of the central recess and form a transition between the guide groove and the central recess.

In a further embodiment of the movable guide element, the inlet contour can be designed in one step as an inlet chamfer on one side of the guide groove and inclined at an angle of at least 10° and at most 20°, preferably 15°, to the inner face. It can thus be provided that one inlet contour is designed in multiple stages and the other inlet contour is designed in only one stage as an inlet chamfer. Such asymmetry means that damage to the firing pin and other components can be reliably prevented if a nail collapses and forces acting radially to the firing channel axis occur.

In a further refinement of this embodiment, the web can be rounded off to the rear adjacent to the run-in phase and have the contour of a partial section of a circular arc.

In a similar way to the movable guide element, the stationary guide element can also have a linearly extending guide groove for guiding a nail to be driven in and a firing pin in an inner end face that points to the axis of the firing channel when installed. The guide groove preferably has a semicircular cross section. The cross section of the guide groove is preferably adapted to the diameter of the nails to be driven in. In particular, it is provided that the cross section is adapted in such a way that a nail to be driven in is guided tightly, ie with little or no play. Flat end face sections can be arranged on both sides of the guide groove. At the rear end of at least one end face section, transition bevels can be formed, as a result of which the nails and the firing pin can be reliably fed in. In particular, only one side of the guide groove can be provided with a transition slope, which is inclined at an angle of at least 10° and at most 50°, preferably at an angle of about 30°, to the adjacent flat end face section.

Furthermore, the stationary guide element can comprise a guide projection projecting backwards, over which the guide groove extends. The guide projection can be rounded and/or beveled at its rear free end. The guide projection, on which part of the guide groove is formed, makes it possible for the guide groove to extend over almost the entire axial length of the open front end section of the running tube in the installed state.

The stationary guide element can further comprise a central recess which is preferably open to the rear and to the outside. In the installed state, the guide rail can engage in this central recess. Furthermore, the holding bore can be arranged in the area of this recess.

A contact surface can be formed in a rear and/or radially outer section of the stationary guide element, which can be brought into contact with a corresponding stop surface of a nail setting tool or a base body in order to firmly position the stationary guide element on the nail setting tool or on the base body. Since the stationary guide element cannot be moved on the nail setting device or on the base body of a kit for subsequently attaching a guide element a nail setting tool must be attachable, storage with a bolt is not sufficient. According to this embodiment, it is provided that a contact surface of the stationary guide element is additionally brought into contact with or rests against a corresponding stop surface, so that the stationary guide element is clearly and firmly positioned by the bolt or the screw and by the contact of the two surfaces with one another.

The object on which the invention is based is also achieved by an arrangement of the type mentioned at the outset, comprising a nail setting tool as described above and a movable guide element attached to it as described above, so that the movable guide element can move between a radially inner guide position with respect to the firing channel axis, in which it partially closes the front end section of the barrel and guides a firing pin driving it along the firing channel axis, and a radially outer deflection position in which a radial deflection of a nail to be driven in is possible, pivotable about a pivot axis relative to the base body.

In a kit for subsequently attaching a guide element to a nail setting device, comprising a base body and a movable guide element attached to it, each as described above, it is provided according to the invention that the movable guide element can be pivoted about a pivot axis relative to the base body between a guide position and an alternative position, so that it is suitable for partially closing the open front end portion of the running tube of a nail setting tool and for allowing a nail to be driven to deviate radially. The arrangement according to the invention can be designed in such a way that the counter surface of the movable guide element can be brought into contact with a stop surface of the base body in order to limit the movement of the movable guide element in the direction of its guide position. Accordingly, in the kit according to the invention, the counter-surface of the movable guide element can be brought into contact with a stop surface of the base body.

The fastening means are preferably arranged on an inner end region of the guide rail of the nail setting device or of the base body, so that the guide rail can engage in the central recess of the movable guide element. The bearing bore can also be expediently arranged in the area of the central recess of the movable guide element.

The arrangement or the kit can be designed in such a way that a bolt or a screw passes through the bearing bore of the movable guide element and the fastening bore of the nail setting tool or the base body in order to mount the movable guide element so that it can pivot relative to the base body of the nail setting tool or to the base body. Furthermore, securing means can be provided in order to secure the bolt or the screw in the fastening bore or bearing bore, the securing means preferably comprising a securing ring or a nut, in particular a hexagon nut. Such a locking ring can be designed, for example, in such a way that it can only be removed from the bolt using a tool. It is conceivable that the locking ring engages in a corresponding groove formed in the bolt. This ensures that only users who have the appropriate tools can replace the corresponding guide element on a nail setting device or a base body of a kit. to be able to see. Alternatively, the securing means can also include a screw, which is secured against unintentional loosening, for example with a nut, in particular a hexagonal nut

Furthermore, biasing means may be provided to bias the movable guide member towards its guide position. Specifically, the pretensioning means can comprise a compression spring, in particular a helical compression spring, which is supported between the base body of the nail setting tool, in particular a forward-projecting projection of the base body, or the base body of the kit, and a section of the movable guide element lying axially in front of the pivot axis. This refinement is based on the consideration that the movable guide element should always be in its guide position and, after moving out of the guide position as a result of a collapsing nail, should independently return to the guide position. On the other hand, prestressing in the direction of the guide position ensures that the nail to be driven in and the firing pin are guided and that the guide element yields in a defined manner against the restoring force of the compression spring when radial forces occur. At the same time, this ensures that after the unsuccessful driving in of a collapsed nail and the associated movement of the guide element out of its guide position, the movable guide element automatically returns to its guide position before the next nail is driven in.

In order to avoid buckling of the compression spring, blind holes into which the compression spring engages or can engage can be provided in the nail setting tool, in particular in the base body of the nail setting tool or the base body of a kit and the movable guide element. Alternatively or additionally, if it is a screw Compression spring is, in the interior of which a guide pin, for example made of hard rubber, are introduced in order to avoid buckling.

Furthermore, an arrangement comprising a nail setting device as described above with a stationary guide element as described above immovably attached to it is also conceivable. Equally, according to the invention, a kit with a base body and a stationary guide element attached thereto, in each case as described above, can be provided.

The object on which the invention is based is also achieved by a nail setting device with a kit attached to it, as described above.

In addition, the object on which the invention is based is achieved by a system of the type mentioned at the outset, comprising a nail setting device, a movable guide element and a stationary guide element, each as previously described. Furthermore, the object is achieved by a retrofit system comprising a base body of a kit for subsequent attachment of a guide element to a nail setting tool, a movable guide element and a stationary guide element, each as described above, so that a user can optionally have a movable guide element or a stationary guide element on the nail setting tool or Can be releasably attached to the base body.

This embodiment is based on the idea of providing the user with two different guide elements, namely a stationary and a movable guide element. Depending on the general conditions, in particular the length of the nails to be driven in, the user can then choose between one of the two guide elements and detachably attach this to a nail setting tool or to a corresponding kit.

The system or the retrofit system can also include a bolt or a screw which can pass through the fastening bore of the nail setting device or the base body and the bearing bore of a movable guide element in order to mount the movable guide element pivotably relative to the base body. In the same way, this bolt or screw can pass through the fastening hole and the holding hole of a stationary guide element in order to detachably fasten the stationary guide element immovably to the base body of the nail setting device or to the base body of a kit. In other words, a movable or stationary guide element can be selectively fastened by arranging the corresponding bores in alignment with one another and inserting a bolt or a screw.

Securing means can be provided in order to prevent the bolt or screw from being unintentionally moved out of the corresponding bores. In the case of a bolt, these can include a locking ring, which prevents the bolt from moving unintentionally within the bores.

The system may further comprise biasing means for biasing the movable guide member towards its guide position. Specifically, the biasing means can include a compression spring, in particular a helical compression spring, which extends between the base body of the nail setting tool, in particular a forward-projecting projection of the base body, or the base body of the kit and an axially the pivot axis lying section of the movable guide member can support.

The individual components of the system or the retrofit system can be designed in such a way that a counter surface of the movable guide element can be brought into contact with a stop surface of the nail setting device or the base body in order to limit the movement of the movable guide element in the direction of its guide position. Furthermore, a contact surface can be provided on the stationary guide element, which can be brought into contact with a corresponding stop surface of the nail setting tool or the base body in order to clearly position the stationary guide element relative to the base body or base body.

The fastening means are preferably arranged on an inner end area of the guide rail of the nail setting device or the base body, so that the guide rail can engage in the central recess of the movable guide element and/or the stationary guide element. Expediently, the bearing bore can also be arranged in the area of the central recess of the movable guide element or the retaining bore can be arranged in the area of the central recess of the stationary guide element.

For the further development of the invention, reference is made to the dependent claims and to the attached drawing. Show in the drawing:

FIG. 1 shows an arrangement according to the invention with a device nose of a nail setting device in a perspective representation with a mounted movable guide element; FIG. 2 shows the device nose from FIG. 1 in a further perspective view;

FIG. 3 shows the guide rail and part of the base body of the nail setting device from FIG. 1 in a side view;

FIG. 4 shows the guide rail and part of the base body from FIG. 3 in a view directed radially outwards in relation to the firing channel axis;

FIG. 5 shows the guide rail and part of the base body from FIG. 3 in a rear view;

FIG. 6 shows the movable guide element of the arrangement from FIG. 1 in a perspective view;

FIG. 7 shows the movable guide element from FIG. 6 in a view directed radially inwards in relation to the firing channel axis;

FIG. 8 shows the movable guide element from FIG. 6 in a partially sectioned view;

FIG. 9 shows the movable guide element from FIG. 6 in a view directed radially outwards in relation to the firing channel axis;

FIG. 10 shows the movable guide element from FIG. 6 in a further side view; Figure 11 is a perspective view of a kit according to the present invention for attachment to a nailer;

FIG. 12 shows the kit from FIG. 11 in a further perspective view;

FIG. 13 shows the device nose of a nail setting device with a kit from FIG. 11 in a perspective view;

FIG. 14 shows the device nose from FIG. 13 in a further perspective view;

FIG. 15 shows the device nose of the nail setting device from FIGS. 13 and 14 with a kit, but with a mounted stationary guide element in a perspective view;

FIG. 16 shows the device nose from FIG. 15 in a further perspective illustration;

FIG. 17 shows the stationary guide element from FIGS. 15 and 16 in a perspective view; and

FIG. 18 shows the stationary guide element from FIG. 17 in a further perspective representation.

Figures 1 and 2 show an arrangement according to the invention, which comprises a device nose 1 of a nail setting device for driving nails into workpieces to be connected. The device nose 1 of the nail setting device has a base body 2 designed as a cast part. This comprises a running tube 3 for guiding a nail to be driven into a workpiece and a firing pin (not shown) that drives the nail. The barrel 3 extends between a front free end 4, through which the nail exits when it is driven into a workpiece, and a drive-side, rear end of the base body 2. On the inside, the barrel 3 forms a firing channel 5 along a firing channel axis X. The barrel 3 also has an open front end section 6 in which it surrounds the firing channel 5 only over a partial circumferential section of about 180°.

In order to apply compressed air to the firing channel 5 for driving the firing pin, the base body 2 is provided at its rear end with a flange 5, through which it is connected to a device (not shown) for applying compressed air.

The device nose 1 of the nail setting device also has a feed device

8 for nails, which defines a feed axis Y. This encloses an acute angle of about 75° to the rear with the firing channel axis X. Along the feed axis Y, nails of a nail strip oriented parallel to one another can be fed one after the other to the firing channel 5 . In concrete terms, the feed device 8 comprises a pivotable via a hinge

9 door 10 connected to the base body 2. In FIG. 2, the door 10 is shown in a closed state and is securely closed by a locking element 11 engaging in a form-fitting manner in a corresponding contour of the base body 2. If a strip of nails is to be inserted into the feed device 8, the locking element 11 is moved forward from the position shown in FIG. can be used spirit mature in the feeder 8 before the door 10 is closed again.

In a front end area of the base body 2, a guide rail 14 is provided on a projection 13 projecting forward, which extends parallel to the feed axis Y and runs in front of it in order to support nails to be fed to the firing channel at their tip. Specifically, the guide rail 14 is formed in one piece with the base body 2 .

In the figures 3 to 5, the guide rail 14 and the projection 13 of the base body 2 is shown in detail. At its radially outer end region to the firing channel axis X, the guide rail has a feeding slope 15 towards the top, in order to move back nails that may have slipped in the nail strip into their intended position. A longitudinal groove 16 is formed in the longitudinal direction of the guide rail 14 on its rearward side pointing towards the feed axis Y. This has a rectangular cross-section in order to support nails to be fed in at their tip and to guide them along the feed axis Y.

Fastening means are provided on an end section of the guide rail 14 that is radially inward with respect to the firing channel axis X, in order to mount a movable guide element 17 such that it can be pivoted about a pivot axis Z relative to the base body. In concrete terms, the fastening means comprise a fastening hole formed in the guide rail 14 . The movable guide element is pivotably mounted by means of a bolt 18, which passes through a bearing bore 19 and the fastening bore along the pivot axis Z and is secured with a retaining ring 20 against unintentional loosening. The guide element 17 can be pivoted between a radially inner guide position with respect to the firing channel axis X, as shown in FIGS. 1 and 2, and a radially outer avoidance position. In the guide position, the guide element 17 partially closes the open front end section 6 of the barrel 3 and guides a nail to be driven in and the firing pin that drives it along the firing channel axis X. In the radially outer evasive position, a nail to be driven in can evade radially.

In the figures 6 to 10, the movable guide element is shown in detail as a single component. In its inner end face 21 pointing towards the firing channel axis X, the movable guide element 17 has a linearly extending guide groove 22 for guiding a nail to be driven in and the firing pin. For this purpose, the guide groove 22 has a V-shaped cross section with an opening angle of 90°.

On both sides of the guide groove 22--seen from the middle of the groove--the guide groove 22 is adjoined by a planar end face section 23, the two end face sections 23 lying in one plane. Further outwards follow in the transition to the side faces 24 delimiting the guide element 17 chamfered bevels 25 which are inclined at an angle of about 15° to the end face sections 23 .

The rear end of the guide groove 22 opens into a central recess 26, which completely penetrates the guide element 17 radially to the firing channel axis X and separates two webs 27, 28 projecting to the rear and lying opposite one another. In the present case, the central recess 26 has a width of about 6.5 mm and is rounded off in the transition to the webs 27, 28, as can be seen in particular in FIG. The guide rail 14 engages flush in the central recess 26, so that between the guide tion rail 14 and the webs 27, 28 there is no significant gap.

The two webs 27, 28 project backwards differently from the central recess 26, with the web 27 arranged on the left in Figure 9 protruding less far back than the web 28 arranged on the right.

In order to prevent blocking of a nail to be driven in, inlet contours are provided on both sides of the guide groove 22 in the transition to the webs 27, 28, which are designed differently. In the transition to web 27, the inlet contour is stepped and comprises a front inlet slope 29, which is inclined at an angle of 30° to the inner end face, and a rear inlet slope 30, which is inclined outwards relative to this and which extends to the inner end face at an angle of 60° ° is inclined. Between the front run-in slope 29 and the rear run-in slope 30 there is a rounding 31 which in the present case has a radius of 4 mm. The front run-in slope 29, the rear run-in slope 30 and the rounded portion 31 arranged between them also at least partially form the transition from the guide groove 22 to the central recess 26.

On the other side, the inlet contour in the transition to the web 28 is designed in one step as an inlet chamfer 32 and is inclined at an angle of 15° to the inner end face. Adjacent to the inlet chamfer 32, the web 28 is rounded towards the rear and has the contour of a section of an arc of a circle.

As can be seen in FIG. 1 and FIG. 2, stop means are provided in order to limit the movement of the guide element 17 in the direction of the guide position. Specifically, the stop means have a base body 2 trained stop surface 33, which is located behind and radially outside of the pivot axis Z. A corresponding mating surface 34 of the guide element 17 bears against this.

Furthermore, biasing means are provided to bias the guide element 17 towards its guide position. In the present case, the pretensioning means comprise a helical compression spring 35 which is supported between the projection 13 of the base body 2 and a section of the guide element 17 which is axially in front of the pivot axis Z. In order to prevent the helical compression spring 35 from buckling, blind holes 36 into which the helical compression spring 35 engages are provided in the projection 13 of the base body 2 and in the guide element 17 .

Figures 11 and 12 show a kit 37 according to the present invention for attachment to a nailer 1; Figures 13 and 14 show a device nose 1 of a nail setting device with such a kit 37.

The kit 37 makes it possible to retrofit an existing nail setting device with a guide rail 14 for guiding the nails to be fed in and with a movable guide element 17 for guiding a nail to be driven in and a firing pin.

The kit 37 includes a base body 38 which is designed to be attached to the base body 2 of a device nose of the nail setting device. For this purpose, fastening means are provided, which in the present case comprise threaded holes 39 formed in the base body 38 for screwing onto the base body 2 of a device nose 1 of a nail setting device. A contact surface 70 is formed on the base body 38 for positioning the base body 38 relative to the base body 2 of a nail setting device 1, which as shown in FIGS. 13 and 14, can be brought into contact with a corresponding opposite edge 41 of the base body 2 of the device nose 1 of a nail setting device.

A guide rail 14 is provided on the base body 38 in the same way as on the projection 13 of the base body 2 of the device nose 1 of a nail setting device of FIGS. 1 to 10 in order to support the nails to be fed in at the front. The guide rail 14 and the base body 38 are designed in one piece.

Also in the same way, a guide element 17, as shown in FIGS. 6 to 10, is pivotably mounted on the guide rail 14 between a guide position and an alternative position, so that it is suitable for partially closing the open front end section 6 of the running tube 3 and to allow radial deflection of a nail to be driven.

Both in the device nose 1 of a nail setting device shown in Figures 1 and 2, in which the guide rail 14 is attached directly to the base body 2, and in the case of the nail setting device 1 of Figures 13 and 14 provided with the assembly kit 37 according to the invention, the feed device 8 successively Wooden nails fed to the running tube 3 from a nail strip.

The guide rail 14 and the longitudinal groove 16 formed in it, as well as the feed bevel 15 ensure that the wooden nails contained in the nail strip cannot slip or that slipped wooden nails return to their correct position relative to the nail strip, so that a reliable and trouble-free feeding of the Nails towards shot channel 5 is reached.

If a wooden nail introduced into the firing channel 5 is to be driven into a workpiece, the front free end 4 of the running tube 3 is first placed on the workpiece. Air pressure is then applied to the firing channel 5 either manually or automatically, so that the firing pin drives the wooden nail in the direction of the front free end 4 of the barrel 3 along the firing channel axis X. The nail leaves the running tube 3 at a speed of about 25 m/s and penetrates a workpiece. The nail is guided through the guide element 17 in the area of the open front end section 6 of the running tube 3 .

If the nail does not encounter a hard point in the workpiece, it penetrates completely into the workpiece without any problem, without the guide element 17 being moved out of the guide position and without the nail exerting radial forces on other components of the nail setting tool, for example the firing pin or the guide element 17 or the running tube 3 exerts.

If, on the other hand, the nail to be driven in encounters a hard spot in the workpiece, it frays and collapses due to the lack of ductility. As a result, the nail cross-section widens in the rear end area of the nail, so that considerable radial forces occur. In this case, the guide element 17 moves radially outwards relative to the firing channel axis X against the prestressing force of the helical compression spring 35 and thus enables a radial expansion of the nail. In addition, the central recess 26 of the guide element 17 results in the wood fibers of the nail being able to escape laterally from the firing channel 5 . Furthermore, due to the defined deflection of the guide element 17, in particular due to its asymmetrical design, the nail and the firing pin driving it are intercepted without high mechanical stresses. stresses arise which can damage components of the tool nose 1 of a nail setting tool.

Even if a nail collapses due to hitting a hard spot in the workpiece, the guide element 17 automatically returns to its guiding position due to the restoring force of the helical compression spring 35, so that the next nail can be driven directly into the workpiece without time-consuming troubleshooting. Because the guide rail 14 engages in the central recess 26 of the guide element 17 without any play worth mentioning, no wood fibers can get stuck and block the movement of the guide element 17 relative to the base body 2 .

With certain nails, especially those with a short length, it has proven to be advantageous not to provide an alternative. Accordingly, FIGS. 15 and 16 show a device nose 1 of a nail setting device with a base body 38 according to the invention, with a stationary guide element 42 being attached to the base body 38 instead of a movable guide element 17 . FIGS. 17 and 18 again show the stationary guide element 42 as a separate component in detail.

The stationary guide element 42 has a linearly extending guide groove 44 with a semicircular cross-section in its inner end face 43 pointing towards the firing channel axis X in the installed state. This serves to guide a nail to be driven in and the firing pin of the nail setting device 1. Flat end face sections 45 are arranged on both sides of the guide groove 44, the end face section 45 shown on the left in FIG. This is inclined at an angle of approximately 30° to the flat end face section 45 . As can be seen in particular in FIGS. 17 and 18, the guide groove 44 also extends over a guide groove projection 47 which protrudes to the rear and which is bevelled and rounded off in its rear end region. Through this guide groove projection 47, the guide groove 44 extends essentially over the entire axial length of the open front end section 6 of the running tube 3.

The stationary guide member 42 further includes attachment means for releasably attaching the guide member 42 to the base body 38 of the kit 37 . In concrete terms, the attachment means comprise a holding bore 48 which completely penetrates the stationary guide element 42 . It can be seen in FIGS. 15 and 16 that the stationary guide element 42 is detachably fastened to the base body 38 . The bolt 18 completely passes through the holding hole 48 of the stationary guide element 42 and the fastening hole of the base body 38 and is secured against unintentional loosening by means of the locking ring 20 .

Furthermore, the stationary guide element 42 has a central recess 49 which is open to the rear and radially outwards and into which the guide rail 14 of the base body 38 engages, so that the stationary guide element 42 can be fastened in a space-saving manner.

At its radially outer end, the stationary guide element 42 has a contact surface 50 which can be brought into contact with a corresponding second stop surface 51 of the base body 38 in order to firmly position the stationary guide element 42 on the base body 38 . As can be seen in FIG. by 38 and thus firmly positioned relative to the base body 2 of the nail setting tool.

A user can thus optionally attach a stationary guide element 42 or a movable guide element 17 to the nail setting device, ie depending on the type of nails to be driven in and depending on other general conditions. To do this, he only has to remove the locking ring 20 from the bolt 18 and pull the bolt 18 out of the corresponding bores. An exchange of the guide element 17, 41 is then possible without problems. In this way, the nail setting device shown can be used universally and is suitable for various nails to be driven in, in particular those made of lignocellulosic material.

Reference List

1 device nose

2 basic bodies

3 running tube

4 front free end

5 shot channel

6 open front end section

7 flange

8 feeder

9 hinge

10 door

11 locking element

12 compression spring

13 projection

14 guide rail

15 feeding incline

16 longitudinal groove

17 movable guide element

18 pivot pins

19 bearing hole

20 locking ring

21 inner face

22 guide groove

23 face section

24 side face

25 chamfered bevel

26 central recess

27 footbridge

28 jetty 29 front inlet slope

30 rear inlet slope

31 rounding

32 inlet chamfer

33 stop surface

34 counter surface

35 coil compression spring

36 blind hole

37 kit

38 base body

39 threaded hole

40 contact surface

41 opposite edge

42 stationary guide element

43 inner face

44 guide groove

45 flat face section

46 transition slope

47 guide groove projection

48 retaining hole

49 central recess

50 plant area

51 second stop surface

X shot channel axis

Y feed axis

Z pivot axis

Claims

38 CLAIMS

1. Nail setting device, in particular a pneumatic nail gun, with a base body (2) which comprises a barrel (3) for guiding a nail to be driven into a workpiece and a firing pin driving the nail, the barrel (3) extending between a front free end (4) , over which the nail emerges when it is driven into a workpiece, and a rear end on the drive side, the running tube (3) forming a firing channel (5) on the inside along a firing channel axis and having an open front end section (6) in which the firing channel is located (5) surrounds only a partial peripheral section, characterized in that the nail setting device has fastening means which are designed and suitable, optionally a movable guide element (17) which can be moved between a radially inner guide position with respect to the firing channel axis, in which it closes the open front end section (6) of the running tube (3) partially closed and a nail to be driven in and guides the firing pin that drives it along the firing channel axis, and a radially outer deflection position in which radial deflection of a nail to be driven in is possible, about a pivot axis relative to the base body (2), or 39 a stationary guide element (42), which at least partially closes the open front end section (6) of the barrel (3), in particular over the entire circumference, and guides a nail to be driven in and the firing pin driving it along the firing channel axis, detachably on the base body (2) to fix.

2. Nail setting device according to claim 1, characterized in that the fastening means comprise a fastening projection which is designed to engage in a corresponding recess (26) of a movable guide element (17) or a stationary guide element (42).

3. Nailing device according to claim 1 or 2, characterized in that the fastening means comprise a fastening bore, which runs offset to the firing channel axis in order to be able to pivotally store a movable guide element (17) on the nailing device.

4. Nail setting device according to claim 3, characterized in that the bore axis of the fastening bore lies in a plane running perpendicularly to the firing channel axis.

5. Nailing device according to one of the preceding claims, characterized in that stop means are provided in order to limit the movement of an attached movable guide element (17) in the direction of the guide position and/or to position a stationary guide element (42) relative to the base body (2). .

6. Nailing device according to claim 5, characterized in that the stop means are at least one on the nailing device, in particular on the base body (2) and preferably pointing to the firing channel axis 40 de stop surface (33) on which a corresponding counter surface (34) of a movable guide element (17), which is preferably located in a rear section of a movable guide element (17) and is preferably formed by a web (27), or a contact surface a stationary guide element (42) can be brought into contact.

7. Nailing device according to one of the preceding claims, characterized in that the running tube (3) has the firing channel (5) in an open front end section (6) over a circumferential angle of at least 160° and/or at most 200°, preferably over a circumferential angle of 180° surrounds.

8. Nail setting device according to one of the preceding claims, characterized in that the nail setting device has a feed device (8) for nails, which defines a feed axis along which nails oriented parallel to one another are successively fed into the firing channel (5) in order to be driven into a workpiece be, wherein the feed axis extends transversely to the shot channel axis.

9. Nail-setting device according to claim 8, characterized in that its guide rail (14), which extends parallel to the feed axis and runs in front of it, is provided in order to support nails to be fed in at their tip.

10. Nailing device according to claim 9, characterized in that the guide rail (14) is detachably attached to the base body (2), in particular screwed to it, or that this guide rail (14) is formed in one piece with the base body (2).

11. Nailing device according to claim 9 or claim 10, characterized in that in the guide rail (14) in the rear-facing side extending in its longitudinal direction longitudinal groove (16) is formed with a particular V-shaped or rectangular cross-section.

12. Nail setting device according to one of claims 9 to 11, characterized in that the guide rail (14) at its radially outer end region to the shot channel axis to the rear has a feeding slope (15) in order to avoid blocking nails to be fed.

13. Nailing device according to one of claims 9 to 12, characterized in that the firing channel axis and the feed axis enclose an acute angle to the rear, in particular an angle of at least 60° and/or at most 85°, preferably about 75°.

14. Nailing device according to one of claims 1 to 4 and one of claims 9 to 13, characterized in that the fastening means are arranged on a radially inner end region directly on the guide rail (14).

15. Base body (38) for a kit (37) for subsequent attachment of a guide element to a nail setting tool, the nail setting tool having a base body (2) which has a running tube (3) for guiding a nail to be driven into a workpiece and a firing pin driving the nail comprises, wherein the running tube (3) extends between a front free end (4), via which the nail emerges when being driven into a workpiece, and a rear end on the drive side, wherein the running tube (3) forms a firing channel (5) on the inside along a firing channel axis (X) and has an open front end section (6) in which it surrounds the firing channel (5) only over a partial peripheral section, characterized in that the base body ( 38) has fastening means which are designed and suitable, optionally a movable guide element (17) which can be moved about a pivot axis relative to the base body (38) between a guide position in which it is suitable for guiding the open front end section (6) of the running tube (3 ) to partially close and to guide a nail to be driven in and the firing pin that drives it along the axis of the firing channel, and an evasion position in which a radial evasion of a nail to be driven in is possible, or a stationary guide element (42) which is suitable for open front end section (6) of the running tube (3) at least partially, in particular over the entire U mfang to close and to guide a nail to be driven in and the firing pin that drives it along the firing channel axis, to be releasably attached to the base body (38).

16. Base body (38) according to claim 15, characterized in that the fastening means comprise a fastening projection which is designed to engage in a corresponding recess (26) of a movable guide element (17) or a stationary guide element (42). 43

17. Base body (38) according to claim 15 or 16, characterized in that the fastening means comprise a fastening bore in order to be able to mount a movable guide element (17) pivotably on the nail setting device.

18. Base body (38) according to claim 17, characterized in that the bore axis of the fastening bore is designed such that it runs in a plane perpendicular to the firing channel axis when the base body (38) is attached to a nail setting tool.

19. Base body (38) according to one of the preceding claims, characterized in that stop means are provided in order to limit the movement of an attached movable guide element (17) in the direction of the guide position and/or a stationary guide element (42) relative to the base body (38 ) to position.

20. Base body (38) according to claim 19, characterized in that the stop means have a stop surface (33) formed on the base body (38), on which a corresponding mating surface (34) of a movable guide element (17), which is preferably located in a rear section of a movable guide element (17) and is preferably formed by a web (27), or can be brought into contact with a contact surface of a stationary guide element (42).

21. Base body (38) according to one of claims 15 to 20, wherein the nail setting device also has a feed device (8) for nails, which defines a feed axis (Y) along which nails oriented parallel to one another are fed one after the other to the firing channel (5), to in a 44

to be driven into the workpiece, with the feed axis (Y) extending transversely to the firing channel axis (X), characterized in that a guide rail (14) is provided which is designed and arranged in such a way that, after the base body (38) has been attached to the Nailer extends parallel to and in front of the feed axis (Y) to support nails to be fed at its tip.

22. Base body (38) according to claim 21, characterized in that the guide rail (14) is formed in one piece with the base body (38).

23. Base body (38) according to claim 21 or claim 22, characterized in that in the guide rail (14) on the rear-facing side there is a longitudinal groove (16) extending in its longitudinal direction and having a particularly V-shaped or rectangular cross-section .

24. Base body (38) according to one of Claims 21 to 23, characterized in that the guide rail (14) has a feeding slope (15) towards the rear at its end region radially to the firing channel axis, in order to avoid blocking of the nails to be fed.

25. Base body (38) according to one of claims 21 to 24 and one of claims 15 to 18, characterized in that the fastening means are arranged on the guide rail (14), in particular on a radially inner end region of the guide rail (14).

26. Base body (38) according to any one of claims 15 to 25, characterized in that attachment means are provided to the base body (38) 45 to be able to attach to the base body (2) of the nail setting device, the attachment means preferably comprising threaded holes (39) for screwing the base body (38) to the base body (2) of the nail setting device.

27. Movable guide element (17) for detachable attachment to a nail setting tool according to any one of claims 1 to 14 or to a base body (38) according to any one of claims 15 to 26, which can be attached to a nail setting tool or a base body (38) in such a way that it between a radially inner guide position with respect to the firing channel axis, in which it partially closes the open front end section (6) of the barrel (3) and guides a nail to be driven in and the firing pin driving it along the firing channel axis, and a radially outer avoidance position in which radial deflection of a nail to be driven in is possible, can be pivoted about a pivot axis relative to the base body (2).

28. Movable guide element (17) according to claim 27, characterized in that a linearly extending guide groove (22) for guiding a nail to be driven in and a firing pin is provided in an inner face (21) pointing towards the firing channel axis when installed.

29. Movable guide element (17) according to claim 28, characterized in that the guide groove (22) has a V-shaped cross section, the opening angle being in particular at least 60° and/or 120°, preferably approximately 90°.

30. Movable guide element (17) according to claim 28 or claim

29, characterized in that the rear end of the guide groove (22) opens into a central recess (26) which the guide element (17) 46 penetrates completely from the inside to the outside and separates two opposite webs (27, 28) projecting to the rear.

31. Movable guide element (17) according to claim 30, characterized in that the two webs (27, 28) protrude to different extents to the rear.

32. Movable guide element (17) according to claim 30 or claim 31, characterized in that inlet contours are provided on both sides of the guide groove (22) in the transition to the webs (27, 28).

33. Movable guide element (17) according to claim 32, characterized in that the inlet contours on both sides of the guide groove (22) are designed differently.

34. Movable guide element (17) according to claim 32 or claim 33, characterized in that the inlet contour is stepped on one side of the guide groove (22) and a front inlet slope (29) and a rear inlet slope (30) inclined outwards relative to this includes.

35. Movable guide element (17) according to claim 34, characterized in that the front inlet slope (29) is inclined at an angle of at least 20° and at most 40°, preferably by 30°, to the inner end face, and the rear inlet slope (30) by at an angle of at least 50° and at most 70°, preferably by 60°, to the inner end face (21).

36. Movable guide element (17) according to claim 34 or claim 35, characterized in that the transition between the front and 47 of the rear run-in slope (30) is rounded, the rounding (31) preferably having a radius of about 4 mm.

37. Movable guide element (17) according to one of claims 33 to 36, characterized in that on one side of the guide groove (22) the inlet contour is designed in one step as an inlet chamfer (32) and at an angle of at least 10° and at most 20°, is preferably inclined by 15 ° to the inner end face (21).

38. Movable guide element (17) according to claim 37, characterized in that the web adjacent to the inlet chamfer (32) is rounded to the rear and has the contour of a partial section of a circular arc.

39. Movable guide element (17) according to any one of claims 27 to

38, characterized in that in particular in a rear section of the guide element (17) a counter surface (34) is formed, which can be brought into contact with a corresponding stop surface (33) of a nail setting tool or a base body (38) in order to stop the movement of the movable To limit the guide element (17) in the direction of its guide position.

40. Movable guide element (17) according to any one of claims 27 to

39, characterized in that bearing means are provided to pivot the movable guide element (17) relative to the base body (2) of a nail setting device or on the base body (38) of a kit (37).

41. Movable guide element (17) according to claim 40, characterized in that the bearing means has a bearing bore (19) around 48, which completely penetrates the guide element (17), in particular in a rear area, and by means of which the guide element (17) can be pivotably mounted on the nail setting device or on the base body (38).

42. Stationary guide element (42) for detachable attachment to a nail setting tool according to any one of claims 1 to 14 or to a base body (38) according to any one of claims 15 to 26, which is so immovable on a nail setting tool or a base body (38) of a kit ( 37) can be attached such that it at least partially closes the open front end section (6) of the barrel (3) and guides a nail to be driven in and the firing pin driving it along the firing channel axis.

43. Stationary guide element (42) according to claim 42, characterized in that the guide element (42) has a linearly extending guide groove (44) for guiding a nail to be driven in and a firing pin in an inner end face (43) pointing towards the axis of the firing channel when installed .

44. Stationary guide element (42) according to claim 43, characterized in that the guide groove (44) has a semi-circular cross section.

45. Stationary guide element (42) according to one of Claims 42 to 44, characterized in that a contact surface is formed in particular in a rear or radially outer section of the guide element (42) which engages with a corresponding stop surface (51) of a nail setting tool or a base body (38) can be brought to bear in order to 49

Position the guide element (42) firmly on the nail setting device or on the base body (38).

46. Stationary guide member (42) according to any one of claims 42 to 45, characterized in that attachment means are provided for releasably attaching the guide member (42) to a nailer or to the base body (38) of a kit (37).

47. Stationary guide element (42) according to claim 46, characterized in that the attachment means comprise a retaining bore (48) which passes through the guide element (42), so that the guide element (42) can be held in place by means of a bolt (18) or a screw or the like can be detachably attached to a nail setting device or to a base body (38) of a kit (37).

48. Arrangement comprising a nail setting tool according to one of claims 1 to 14 and a movable guide element (17) according to one of claims 27 to 41 attached thereto, so that the movable guide element (17) can move between a radially inner guide position in relation to the firing channel axis, in soft it partially closes the front end section (6) of the barrel (3) and guides a firing pin driving it along the firing channel axis, and a radially outer deflection position in which a radial deflection of a nail to be driven in is possible about a pivot axis relative to the base body (2nd ) can be pivoted.

49. Arrangement according to claim 48, wherein the nail setting tool according to claim 5 and the movable guide element (17) are designed according to claim 38, so that the counter surface (34) of the guide element can be brought into contact with the stop surface (33) of the base body (2). , to the 50

To limit movement of the guide element (17) in the direction of the guide position.

50. Arrangement according to claim 48 or 49, wherein the nail setting device according to claim 3 or claim 4 and the movable guide element (17) are designed according to claim 41, characterized in that a bolt (18) or a screw fixes the fastening bore and the bearing bore (19 ) interspersed in order to mount the guide element (17) pivotably relative to the base body (2).

51. Arrangement according to claim 50, characterized in that securing means are provided in order to secure the bolt or the screw in the fastening bore and the bearing bore (19), the securing means preferably comprising a securing ring (20) or a nut, in particular a hexagon nut .

52. Arrangement according to one of claims 48 to 51, characterized in that biasing means are provided to bias the movable guide element (17) towards its guide position.

53. Arrangement according to claim 52, characterized in that the prestressing means comprise a compression spring, in particular a helical compression spring (35), which extends between the base body (2), in particular from a forward-projecting projection of the base body (2), and an axially the pivot axis lying section of the movable guide element (17) supports.

54. Arrangement according to claim 53, characterized in that in the base body (2) and the movable guide element (17) blind holes are provided, in which engages the compression spring. 51

55. Kit (37) for subsequent attachment of a guide element to a nail setting device, comprising a base body (38) according to one of claims 15 to 26 and a movable guide element (17) attached thereto according to one of claims 27 to 41, so that the guide element ( 17) can be pivoted about a pivot axis relative to the base body (38) between a guide position and an escape position, so that it is suitable for partially closing the open front end section (6) of the running tube (3) of a nail setting tool and radial escape of a nail to be driven in to allow.

56. Kit (37) according to claim 55, wherein the base body (38) according to claim 20 and the movable guide element (17) are designed according to claim 39, so that the mating surface (34) of the movable guide element (17) on the stop surface (33 ) of the base body (38) can be brought into abutment in order to limit the movement of the movable guide element (17) towards the guide position.

57. Kit (37) according to claim 55 or 56, wherein the base body (38) according to claim 17 or claim 18 and the movable guide element (17) are formed according to claim 41, characterized in that a bolt (18) or a screw Fastening bore and the bearing bore (19) penetrates to store the movable guide element (17) pivotally on the base body (38).

58. Kit (37) according to claim 57, characterized in that securing means are provided in order to secure the bolt (18) or the screw in the fastening bore and the bearing bore (19), the securing means preferably being a securing ring (20) or a Mother, in particular include a hex nut. 52

59. Kit (37) according to any one of claims 55 to 58, characterized in that biasing means are provided to bias the movable guide element (17) towards its guide position.

60. Kit (37) according to claim 59, characterized in that the prestressing means comprise a compression spring, in particular a helical compression spring (35), which extends between the base body (38), in particular from a forward-projecting projection of the base body (38), and a section of the movable guide element lying axially in front of the pivot axis.

61. Kit (37) according to claim 60, characterized in that blind holes are provided in the base body (38) and the movable guide element (17), in which engages the compression spring.

62. Nail setting device with a base body (2) which comprises a running tube (3) for guiding a nail to be driven into a workpiece and a firing pin driving it, the running tube (3) extending between a front free end (4) via which the Nail emerges when being driven into a workpiece and extends to a rear end on the drive side, the barrel (3) forming a firing channel (5) on the inside along a firing channel axis and having an open front end section (6) in which the firing channel (5) only surrounding over a partial perimeter portion, having attached thereto a kit (37) according to any one of claims 55 to 61.

63. A system comprising a nailing device according to any one of claims 1 to 15, a movable guide element (17) according to any one of claims 27 to 41 and a stationary guide element (42) according to any one of the claims 53

42 to 47 so that a user can selectively releasably attach a movable guide member (17) or a stationary guide member (42) to the nailer.

64. System according to claim 63, wherein the nail setting device according to claim 3 or claim 4, the movable guide element (17) according to claim 39 and the stationary guide element (42) according to claim 47 are designed so that either the movable (17) or the stationary The guide element (42) can be releasably attached to the nail setting tool by means of a bolt (18) or a screw which passes through the attachment hole and the bearing hole (19) or attachment hole.

65. System according to claim 64, characterized in that the system further comprises a bolt (18) or a screw, as well as securing means, to make the movable guide element (17) pivotable and/or the stationary guide element (42) immovable on the base body (2). of the nail setting device to be detachably fastened.

66. System according to claim 65, characterized in that the securing means comprise a securing ring (20) and/or a nut, in particular a hexagonal nut.

67. System according to one of claims 63 to 66, wherein the nail setting device according to claim 6, the movable guide element (17) according to claim 39 and the stationary guide element (42) are designed according to claim 45, so that depending on the selected guide element (17, 42) either the counter surface (34) of the movable guide element (17) can be brought into contact with the stop surface (33) of the nail setting device in order to limit the movement of the movable guide element (17) in the direction of the guide position, or the contact surface of the stationary guide 54 ing element (42) can be brought into contact with the stop surface (51) of the nail setting device in order to position the stationary guide element (42) on the nail setting device.

68. Retrofit system comprising a base body (38) according to any one of claims 15 to 26, a movable guide element (17) according to any one of claims 27 to 41 and a stationary guide element (42) according to any one of claims 42 to 47, so that a user can optionally movable guide element (17) or a stationary guide element (42) can be releasably attached to the base body (38).

69. Retrofit system according to claim 68, wherein the base body (38) according to claim 17 or 18, the movable guide element (17) according to claim 39 and the stationary guide element (42) according to claim 47 are designed so that either the movable or the stationary guide element (17, 42) can be detachably attached to the base body (38) by means of a bolt (18) or a screw which passes through the attachment bore and the bearing bore (19) or attachment bore.

70. Retrofit system according to claim 69, characterized in that the system further comprises a bolt (18) or a screw, as well as securing means, in order to pivotally attach the movable guide element (17) and/or to detachably attach the stationary guide element to the base body (38).

71. Retrofit system according to claim 70, characterized in that the securing means comprise a securing ring (20) and/or a nut, in particular a hexagonal nut.

ADJUSTED SHEET (RULE 91) ISA/EP 55

72. Retrofit system according to one of claims 68 to 71, wherein the base body (38) according to claim 20, the movable guide element (17) according to claim 39 and the stationary guide element (42) according to claim 45 are designed so that depending on the selected guide element either the counter surface (34) of the movable guide element (17) can be brought into contact with the stop surface (33) of the base body (38) in order to limit the movement of the movable guide element in the direction of the guide position, or the contact surface of the stationary guide element (42) can be brought into contact with the stop surface (51) of the base body (38) in order to position the stationary guide element (42) on the nail setting device.

ADJUSTED SHEET (RULE 91) ISA/EP