Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
  • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
  • B25B23/02—Arrangements for handling screws or nuts
  • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
  • B25B23/045—Arrangements for handling screws or nuts for feeding screws or nuts using disposable strips or discs carrying the screws or nuts

Definitions

• the invention relates to a separating device for separating a fastening element from a fastening element strip, a magazine attachment for a device for driving fastening elements into a substrate, and a fastening system with a driving device and a magazine attachment.
• Magazine attachments for driving devices usually comprise a separating section for a fastening element and a passage for a driving element which drives the fastening element from the separating section into the ground in a driving direction.
• the fastening elements are usually stored in magazines with the aid of a strip and transported into the separating section through a transport channel of the magazine attachment.
• a fastening element for example a screw, which is located in the
• Separation section is located, detected by the driving element, for example a screwdriver bit, and separated from the strip.
• the empty strip is transported from the separating section and protrudes more and more from the
• Magazine attachment out.
• Flat, soft strips for example made of plastic, tend to bend about a bending axis which is oriented parallel to a plane of the strip and perpendicular to a longitudinal direction in which the strip is usually transported.
• the empty strip protruding from the magazine attachment therefore often bends back onto the magazine attachment and can get caught there with the magazine attachment or its functional elements. This disrupts the workflow of a user of the respective driving device. It is an object of the invention to provide a separating device, a magazine attachment and a fastening system with a driving device, with which the work processes can be improved if necessary.
• a separating device for separating a fastening element from a fastening element strip with a receptacle in which the fastening element is received, the fastening element defining a fastening direction in which the fastening element is intended to be driven into a substrate, with an inlet opening and an outlet opening having transport channel for a guided transport of the fastening element strip in a transport direction from the inlet opening to the outlet opening, wherein the transport channel has a separation section in which the fastening element is separated in a separation direction from the fastening element strip, the transport channel between the separation section and the outlet opening around the Has transport direction twisting portion to a torsion of the fastener strip during its transport v to effect on the separation section to the outlet mouth.
• An advantageous embodiment is characterized in that the direction of isolation and the direction of attachment coincide.
• Another advantageous embodiment is characterized in that the separation direction and the transport direction in the separation section are oriented perpendicular to one another.
• An advantageous embodiment is characterized in that the transport channel in the twisting section is twisted by a torsion angle which is between 1 ° and 90 °.
• the torsion angle is preferably between 2 ° and 45 °, particularly preferably between 3 ° and 30 °.
• the transport channel in the twisting section comprises two mutually opposite guide elements for guiding the fastening element strip, which together twist around the transport direction.
• the guide elements preferably extend from the separating section to the outlet opening, particularly preferably from the inlet opening to the outlet opening.
• the guide elements also preferably comprise a guide groove and / or a guide web.
• the guide elements also preferably define a stripe plane.
• the separating device has a passage for a separating element, which separates the fastening element from the fastening element strip in the separating direction.
• An advantageous embodiment is characterized in that the separating device is inserted into a magazine attachment for a device for driving fastening elements into a substrate, the magazine attachment comprising an attachment part, which has a connection area for connecting the magazine attachment to the device, and a pressing part, which has a contact area for placing the magazine attachment on the ground, the attachment part and the pressing part being held together displaceably along a displacement path, the displacement path being limited by a normal position and a pressing position.
• attachment part has a guide into which the pressing part can be pushed along the displacement path.
• pressing part has a guide into which the attachment part can be pushed along the displacement path.
• An advantageous embodiment is characterized in that the pressing part has a transport mechanism with the aid of which the fastening element strip can be transported in the transport direction when the pressing part is moved from the normal position to the pressing position and / or vice versa with respect to the attachment part.
• An advantageous embodiment is characterized in that the magazine attachment is inserted into a fastening system, comprising a device for driving fastening elements into a substrate, the connecting area of the attachment part can be connected to the drive-in device.
• the driving-in device is preferably hand-operated.
• the drive-in device is also preferably designed as a drill or screwdriver.
• FIG. 4 shows a detail of a magazine attachment with an outlet mouth.
• FIG. 1 shows a magazine attachment 130 which, together with a device (not shown), designed as a handheld cordless screwdriver for example, for driving fastening elements 115 designed as screws into a substrate, forms a fastening system.
• the magazine attachment in turn comprises an attachment part 140 with a connecting area 145 for connecting the magazine attachment 130 to the driving device and a pressing part 150 with a contact area 155 for placing the magazine attachment 130 on a substrate.
• the pressing part 150 has a receptacle for the fastening element 115, which is concealed in FIG. 1, as well as a passage (not shown) for a driving element designed, for example, as a screw drive.
• the driving element is exchangeably fastened in a receiving chuck, not shown, of the device and is driven in rotation by the driving device in order to drive the fastening element 115 out of the receiving element into the ground.
• the fastening elements 115 are designed as screws.
• the fastening elements are designed as screw anchors, bolts, screw bolts, nails, rivets or the like and are driven into the ground in a rotating or linear manner.
• the attachment part 140 In its interior, the attachment part 140 has a guide into which the rail-like pressing part 150 can be pushed along a displacement path.
• the pressing part has a guide into which the Pressing part can be pushed in.
• the displacement ranges from a normal position to a contact position.
• the attachment part 140 and the pressing part 150 cannot be displaced further away from one another or towards one another than up to these two end positions and held against one another along the entire displacement path including the two end positions.
• a pressure spring arranged in the guide is compressed when the magazine attachment 130 is pressed against the ground and ensures that the attachment part 140 and the pressing part 150 move into the normal position when the magazine attachment 130 is lifted off the ground.
• the magazine attachment 130 includes a transport mechanism, not shown in detail, for transporting a fastening element strip 100 carrying the fastening elements 115 in a transport direction 105, the transport mechanism being actuated, for example, by pressing the magazine attachment 130 against the ground and / or by lifting the magazine attachment 130 off the ground becomes.
• the fastening element strip 100 has a multiplicity of receptacles arranged one behind the other in the transport direction, in each of which a fastening element 115 is received.
• the magazine attachment 130 in particular the pressing part 150, comprises a separating device 200 for separating a respective fastening element 115 from the fastening element strip 100.
• the separating device 200 comprises a transport channel 210 having an inlet opening 220 and an outlet opening 230 for guided transport of the fastening element strip 100 in the transport direction 105 from the inlet opening 220 to the outlet opening 230, an outside of the transport channel 210 being visible in FIG. 1.
• the separating device 200 has a passage for the driving element, which separates the fastening element in a separating direction from the fastening element strip and drives it out of the receptacle into the ground.
• the driving element thus forms a separating element, so that the separating direction and a fastening direction defined by the fastening element 115 coincide.
• the fastening element 115 has, for example, a shaft with a longitudinal direction which defines the fastening direction.
• the fastening element 115 has a head at one end and / or a tip at an opposite end.
• the direction of isolation and the direction of attachment differ from one another and are, for example, oriented perpendicular to one another.
• the transport channel 210 has a separating section 260 between the inlet opening 220 and the outlet opening 230, in which a fastening element 115 is separated from the fastening element strip 100 in a separating direction 265. Furthermore, the transport channel 210 has a section 270 twisting about the transport direction 105 between the separating section 260 and the outlet opening 230
• the first half-shell 240 (FIG. 2) has a first guide element 245 designed as a guide groove between two guide webs, which extends along the transport channel 210 from the inlet opening 220 to the outlet opening 230.
• the second half-shell 250 (FIG. 3) has a second guide element 255 designed as a guide groove between two guide webs, which also extends along the transport channel 210 from the inlet opening 220 to the outlet opening 230.
• the first guide element 245 and the second guide element 255 are arranged opposite one another and define a strip plane for a fastening element strip 100 guided therein the second guide element 255 parallel to one another, so that the fastening element strip 100 is guided torsion-free during transport along the transport channel 210.
• the first guide element 245, the second guide element 255 and thus also the transport direction 105 are curved in such a way that the fastening element strip 115 exits the outlet opening 230 with a movement component away from the ground. This reduces the risk of the fastening element strip 100 getting between the magazine attachment 130 and the ground after exiting the outlet opening 230.
• the radii of curvature of the first guide element 245 and the second guide element 255 in the twisting section 270 differ, so that the first guide element 245 and the second guide element 255 together, and thus also the transport channel 210, by a torsion angle A (FIG. 4) of for example 8 ° around the Twist transport direction 105.
• This causes a torsion of the strip plane defined by the first guide element 245 and the second guide element 255 between the separating section 260 and the outlet opening 230 and thus a torsion of the fastening element strip 100 during its transport from the separating section 260 to the outlet opening 230
• Fastening element strip 100 does not back onto the magazine attachment 130, so that disruptions to work processes with the fastening system are reduced.
• FIG. 4 shows the magazine attachment 130 in a top view.
• the stripe plane 280 defined by the first guide element 245 and the second guide element 255 is on the
• the outlet opening 230 is inclined by the torsion angle A relative to a plane 290 oriented perpendicular to the separation direction 265.
• the present invention was illustrated using the example of a separating device of a magazine attachment for a driving device. It is pointed out, however, that the separating device according to the invention is also suitable for other purposes.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Portable Nailing Machines And Staplers (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=68581168

Family Applications (1)

Country Status (4)

Citations (5)

• 2019
  • 2019-11-12 EP EP19208430.9A patent/EP3822027A1/de not_active Withdrawn
• 2020
  • 2020-10-27 KR KR1020227016212A patent/KR20220092898A/ko unknown
  • 2020-10-27 EP EP20793413.4A patent/EP4058243B1/de active Active
  • 2020-10-27 WO PCT/EP2020/080141 patent/WO2021094084A1/de unknown
  • 2020-11-11 TW TW109139248A patent/TW202132060A/zh unknown

Patent Citations (5)

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