EP0254775A1 - Outil manuel pour enfoncer des éléments de fixation - Google Patents

Outil manuel pour enfoncer des éléments de fixation Download PDF

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Publication number
EP0254775A1
EP0254775A1 EP86201345A EP86201345A EP0254775A1 EP 0254775 A1 EP0254775 A1 EP 0254775A1 EP 86201345 A EP86201345 A EP 86201345A EP 86201345 A EP86201345 A EP 86201345A EP 0254775 A1 EP0254775 A1 EP 0254775A1
Authority
EP
European Patent Office
Prior art keywords
lever
driver member
driver
fastener
guide body
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.)
Withdrawn
Application number
EP86201345A
Other languages
German (de)
English (en)
Inventor
Umberto Monacelli
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to EP86201345A priority Critical patent/EP0254775A1/fr
Publication of EP0254775A1 publication Critical patent/EP0254775A1/fr
Withdrawn legal-status Critical Current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
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/10—Driving means

Definitions

  • a driver located perpendicular to the fastener drives the leading fastener from the slot into the workpiece.
  • the driver movement toward the workpiece is usually accomplished by a spring forcing the driver in that direction.
  • a lever contacts or hooks onto the driver mounting assembly. As the lever is raised the spring is compressed until the desired position of driver is reached above the fastener. Further movement causes the end of the lever to slip off the driver mounting assembly allowing the spring to move the driver rapidly against the fastener thereby driving the fastener out of the slot.
  • the disengagement of the lever and the driver assembly is usually done by the end of the lever sliding from under a portion of the driver mount. This sliding motion,with both parts under spring force, creates a wear problem. As the end of the lever wears the release position becomes lower resulting in the spring not being compressed as much, thereby reducing the driving power.
  • the lifting of the driver assembly, compressing the spring and movement of the engaging surfaces is done in one continuous motion.
  • the normal practice of only pivoting the lever for disengagement the dimensions and locating positions must be held close for correct operation therefore increasing manufacturing cost.
  • the present invention solves this problem according to one aspect thereof by providing a large engagement surface during compression of the spring and moving the lever laterally (transver­sally) away from driver assembly with a simultaneous pivotal move­ment during disengagement of the parts. This feature will be further clarified in the description and figures of the tool.
  • a second lever is utlized to react in conjunction with the first to reduce the force needed to apply with the hand of the operator. This is normally accomplished by pivoting the hand operated lever near the front of the tool and extending the free end toward the back of the tool. This will reduce the hand force needed to operate the tool if the lever is made long.
  • the operation must be done by a squeezing motion only. This can be tiring if the work must be done continuously for a conside­ rable time. Being able to apply most of the force needed by pushing downward by the hand rather than continued use of the fingers greatly reduces the fatigue problem.
  • An object of the present invention is to provide an operating means where the hand force can be applied close to the driver position to reduce finger fatigue.
  • Another object of the present invention is to provide a tool that can be used with one hand and apply force against the workpiece when the back of the tool is unsupported.
  • Another object of the invention is to provide an operation means that is less sensitive to wear and gives a more consistant drive force.
  • Fig. 1 and Fig. 2 the consist of a guide body 15 in which a rail 16 is located for supporting and guiding fasteners 17.
  • the fasteners shown for convenience are staples but other type fasteners such as pins, brads, nail and the like can also be used depending on the type of application requirement.
  • the fastener guide rail 16 is positioned at the lower portion of the guide body 15 and is held toward the fastener ejection slot 18 by a releasable latch 19.
  • the latching of the rail 16 within the guide body 15 is shown as a lever mounted on a pin 20 with the lower edge contacting the back portion 21 of the rail 16.
  • the latch 19 is forced in a clockwise direction by a spring 22 causing the rail 16 to be forced toward the front of the tool. This is only one method of the attachment of the rail 16 to the guide body 15 and may differ from that shown and therefore is not a limiting factor on the present invention.
  • a pusher 23 which cooperates with the rail 16 of the fasteners 17 urges the latter along the rail 16 by a spring (not shown).
  • the driver 24 is sized and shaped according to the type of fastener being utilized and the fastener driving slot 18. To achieve the driver 24 movement, it is attached to a driver mount 25 slidable within the body 15 in a direction parallel to the plane of the fastener driving slot 18. A spring 26 forces the driver mount 25 downward.
  • a threaded bushing 27 is positioned above the spring 26. Movement of the bushing is controlled by a threaded knob 28. By turning the knob 28 the bushing 27 is displaced decreasing or increasing the space for the spring 28. Decreasing the space makes the spring 26 harder to compress and therefor stores more power for the driving stroke.
  • knob 28 One particular way of attaching the knob 28 to the guide body 15 is shown by means of a retaining plate 29 attached securly to the guide body 15.
  • the knob shaft 30 is retained in the plate 29 by a washer 31 and a snap ring 32.
  • a shock absorber 33 is positioned at the bottom of the guideway of the driver mount 25.
  • a first lever 34 is pivotally mounted on the guide body 15.
  • a pin 35 and a bearing 36 passes through a slot 37 in the lever 34.
  • the front edge 38 of the lever 34 is positioned under a protecting portion of the driver mount 25. As the lever 34 pivots clockwise about pin 35 the front edge 38 engages and raises the driver mount 25.
  • lever 39 is mounted on the body 15 pivotal about pin 40.
  • a rollder 41 is made as part of lever 39 to reduce friction on lever 34.
  • a cavity 42 in the guidebody 15 is provided to place the fingers for carring the tool.
  • the cavity 42 also allows the fingers to be wraped around part of the guide body 15 to operate the tool as by a squeezing motion.
  • FIG. 3 the hand lever 39 is shown partially depressed. Roller 41 has caused rotation of lever 34 about pin 35 lifting driver mount 25. A protecting lower portion 43 of lever 34 has contacted a part of fixed portion 44 of the guide body 15 stopping rotation of lever 34. A pin 44 is shown although any other type stop could be utilized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP86201345A 1986-07-31 1986-07-31 Outil manuel pour enfoncer des éléments de fixation Withdrawn EP0254775A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP86201345A EP0254775A1 (fr) 1986-07-31 1986-07-31 Outil manuel pour enfoncer des éléments de fixation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86201345A EP0254775A1 (fr) 1986-07-31 1986-07-31 Outil manuel pour enfoncer des éléments de fixation

Publications (1)

Publication Number Publication Date
EP0254775A1 true EP0254775A1 (fr) 1988-02-03

Family

ID=8195774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201345A Withdrawn EP0254775A1 (fr) 1986-07-31 1986-07-31 Outil manuel pour enfoncer des éléments de fixation

Country Status (1)

Country Link
EP (1) EP0254775A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497932A (en) * 1994-08-12 1996-03-12 Emhart Inc. Manually operated fastening device
WO1996038267A1 (fr) * 1995-05-30 1996-12-05 Isaberg Ab Outil a main
US5664722A (en) * 1992-06-17 1997-09-09 Worktools, Inc. Forward acting, forward grip, staple machine
WO2006019707A1 (fr) * 2004-07-14 2006-02-23 Fiskars Brands, Inc. Dispositif portable de poinçonnage
CN101480791B (zh) * 2008-01-09 2010-08-25 丰民金属工业股份有限公司 省力型手动钉枪
CN101244551B (zh) * 2007-02-16 2010-09-29 丰民金属工业股份有限公司 省力型手动钉枪
CN103302639A (zh) * 2012-03-07 2013-09-18 丰民金属工业股份有限公司 撞板预先与钉针分离的打钉枪
CN110405694A (zh) * 2019-03-04 2019-11-05 杭州巨星科技股份有限公司 一种多功能压线钉枪

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2326540A (en) * 1941-06-12 1943-08-10 Henry A Torstenson Fastener driving tool
US2769174A (en) * 1954-06-25 1956-11-06 Norris R Libert Tacking machine
FR1193879A (fr) * 1959-11-05
GB920103A (en) * 1959-10-20 1963-03-06 Haubold Dieter Stapling machine
GB2032327A (en) * 1978-10-13 1980-05-08 Barriendos C Stapler drive and feed mechanisms
GB2060465A (en) * 1979-10-15 1981-05-07 Ofrex Group Ltd Work Contacting Safety Device for a Tacker
DE3445279A1 (de) * 1984-12-12 1986-06-19 Erwin Müller GmbH & Co, 4450 Lingen Handtacker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1193879A (fr) * 1959-11-05
US2326540A (en) * 1941-06-12 1943-08-10 Henry A Torstenson Fastener driving tool
US2769174A (en) * 1954-06-25 1956-11-06 Norris R Libert Tacking machine
GB920103A (en) * 1959-10-20 1963-03-06 Haubold Dieter Stapling machine
GB2032327A (en) * 1978-10-13 1980-05-08 Barriendos C Stapler drive and feed mechanisms
GB2060465A (en) * 1979-10-15 1981-05-07 Ofrex Group Ltd Work Contacting Safety Device for a Tacker
DE3445279A1 (de) * 1984-12-12 1986-06-19 Erwin Müller GmbH & Co, 4450 Lingen Handtacker

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5664722A (en) * 1992-06-17 1997-09-09 Worktools, Inc. Forward acting, forward grip, staple machine
US5497932A (en) * 1994-08-12 1996-03-12 Emhart Inc. Manually operated fastening device
WO1996038267A1 (fr) * 1995-05-30 1996-12-05 Isaberg Ab Outil a main
US5979736A (en) * 1995-05-30 1999-11-09 Isaberg Rapid Ab Hand tool having reciprocating operating member
WO2006019707A1 (fr) * 2004-07-14 2006-02-23 Fiskars Brands, Inc. Dispositif portable de poinçonnage
CN101244551B (zh) * 2007-02-16 2010-09-29 丰民金属工业股份有限公司 省力型手动钉枪
CN101480791B (zh) * 2008-01-09 2010-08-25 丰民金属工业股份有限公司 省力型手动钉枪
CN103302639A (zh) * 2012-03-07 2013-09-18 丰民金属工业股份有限公司 撞板预先与钉针分离的打钉枪
CN103302639B (zh) * 2012-03-07 2016-04-06 丰民金属工业股份有限公司 撞板预先与钉针分离的打钉枪
CN110405694A (zh) * 2019-03-04 2019-11-05 杭州巨星科技股份有限公司 一种多功能压线钉枪
CN110405694B (zh) * 2019-03-04 2023-08-18 杭州巨星科技股份有限公司 一种多功能压线钉枪

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