EP4397442A1 - Eintreibgerät für befestigungsmittel mit einer anordnung zum halten eines kammerelements - Google Patents

Eintreibgerät für befestigungsmittel mit einer anordnung zum halten eines kammerelements Download PDF

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Publication number
EP4397442A1
EP4397442A1 EP23218368.1A EP23218368A EP4397442A1 EP 4397442 A1 EP4397442 A1 EP 4397442A1 EP 23218368 A EP23218368 A EP 23218368A EP 4397442 A1 EP4397442 A1 EP 4397442A1
Authority
EP
European Patent Office
Prior art keywords
chamber member
electromagnet
combustion
chamber
tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23218368.1A
Other languages
English (en)
French (fr)
Inventor
Larry Moeller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US18/151,275 external-priority patent/US12358112B2/en
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP4397442A1 publication Critical patent/EP4397442A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/10—Driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C7/00—Accessories for nailing or stapling tools, e.g. supports

Definitions

  • the piston is then forced back to the pre-firing position in a way that depends on the tool's construction and the power source the tool employs.
  • a fastener-advancing device of the tool forces another fastener from a magazine of the tool into the nosepiece, and the tool is ready to fire this next fastener.
  • Certain fastener-driving tools have two different types of operational modes and one or more mechanisms that enable the operator to optionally select one of the two different operational modes that the operator desires to use for driving the fasteners.
  • One such operational mode is known in the industry as the sequential or single actuation operational mode. In this operational mode, the actuation of the trigger mechanism will not (by itself) initiate the actuation of the powered fastener driving tool (and the driving of a fastener into the workpiece) unless the WCE is sufficiently depressed against the workpiece. In other words, to operate the powered fastener driving tool in the sequential or single actuation operational mode, the WCE must first be depressed against the workpiece followed by the actuation of the trigger mechanism.
  • combustion-powered fastener-driving tools that are sometimes called cordless framing nailers
  • cordless framing nailers One issue with various commercially available combustion-powered fastener-driving tools (that are sometimes called cordless framing nailers) is that they operate in the sequential firing mode but do not operate in the bump fire mode. Operating such tools only in the sequential firing mode can lead to operator fatigue.
  • the present disclosure provides various embodiments of a combustion-powered fastener-driving tool that address the above issues by including a chamber member retaining assembly to ensure the chamber member doesn't move to an unsealed position and the combustion chamber remains sealed until the piston fully returns to its pre-firing position.
  • the chamber member retaining assembly is controlled by a suitable controller and engageable with the chamber member thereby providing the controller with the ability to prevent certain undesired movement of the chamber member from the sealed position.
  • the chamber member retaining assembly includes an electromagnet that directly holds the chamber member in a retained position.
  • the controller of the tool selectively energizes the electromagnet to maintain the chamber member in a retained position.
  • the electromagnet directly selectively prevents the chamber member from moving toward its unsealed position from its sealed position.
  • the controller de-energizes the electromagnet after a designated amount of time (thereby allowing the chamber member to move to the unsealed position) to give the piston time to fully return to its pre-firing position. This enables the tool to operate in a bump fire mode.
  • the operational rate can be limited by various factors including the requisite electromagnet "on" time and the time between fastener driving cycles while the tool is repositioned, and the combustion chamber receives fresh air.
  • the combustion-powered fastener-driving tool of various embodiments of the present disclosure is able to thus able to provide an automatic combustion chamber lock control feature and a bump-fire mode feature.
  • combustion-powered fastener-driving tool of the present disclosure operate in a default sequential mode and responsive to the user switching modes operate in a bump-fire mode.
  • the controller of the tool employs a time-out function in the bump-fire mode that prevents tool operation in the bump-fire mode after a designated idle period (such as, for example, five to ten seconds).
  • the combustion-powered fastener-driving tool of various embodiments of the present disclosure enables the operator to rapidly select between the sequential or single actuation operational mode and the contact actuation or bump-fire operational mode.
  • mounting methods such as mounted, connected, etc.
  • mounting methods are not intended to be limited to direct mounting methods but should be interpreted broadly to include indirect and operably mounted, connected, and like mounting methods.
  • This specification is intended to be taken as a whole and interpreted in accordance with the principles of the present disclosure and as understood by one of ordinary skill in the art.
  • the chamber member retaining assembly 300 ensures that the chamber member 260 does not move to an unsealed position and the combustion chamber remains sealed until the piston 220 fully returns to the pre-firing position. This partly enables the tool 100 to operate in a bump fire mode.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP23218368.1A 2023-01-06 2023-12-19 Eintreibgerät für befestigungsmittel mit einer anordnung zum halten eines kammerelements Pending EP4397442A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18/151,275 US12358112B2 (en) 2021-03-11 2023-01-06 Fastener-driving tool with chamber member retaining assembly

Publications (1)

Publication Number Publication Date
EP4397442A1 true EP4397442A1 (de) 2024-07-10

Family

ID=89386195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23218368.1A Pending EP4397442A1 (de) 2023-01-06 2023-12-19 Eintreibgerät für befestigungsmittel mit einer anordnung zum halten eines kammerelements

Country Status (3)

Country Link
EP (1) EP4397442A1 (de)
CN (1) CN118305757A (de)
AU (1) AU2023285977A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070131731A1 (en) * 2004-02-09 2007-06-14 Moeller Larry M Combustion chamber distance control for combustion-powered fastener-driving tool
US7487898B2 (en) * 2004-02-09 2009-02-10 Illinois Tool Works Inc. Combustion chamber control for combustion-powered fastener-driving tool
US20100243699A1 (en) * 2009-03-31 2010-09-30 Marc Largo Single switched dual firing condition combustion nailer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070131731A1 (en) * 2004-02-09 2007-06-14 Moeller Larry M Combustion chamber distance control for combustion-powered fastener-driving tool
US7487898B2 (en) * 2004-02-09 2009-02-10 Illinois Tool Works Inc. Combustion chamber control for combustion-powered fastener-driving tool
US20100243699A1 (en) * 2009-03-31 2010-09-30 Marc Largo Single switched dual firing condition combustion nailer

Also Published As

Publication number Publication date
CN118305757A (zh) 2024-07-09
AU2023285977A1 (en) 2024-07-25

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