EP0254775A1 - Handgerät zum Eintreiben von Befestigungsmitteln - Google Patents
Handgerät zum Eintreiben von Befestigungsmitteln Download PDFInfo
- 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- Withdrawn
Links
Images
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP86201345A EP0254775A1 (de) | 1986-07-31 | 1986-07-31 | Handgerät zum Eintreiben von Befestigungsmitteln |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP86201345A EP0254775A1 (de) | 1986-07-31 | 1986-07-31 | Handgerät zum Eintreiben von Befestigungsmitteln |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0254775A1 true EP0254775A1 (de) | 1988-02-03 |
Family
ID=8195774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86201345A Withdrawn EP0254775A1 (de) | 1986-07-31 | 1986-07-31 | Handgerät zum Eintreiben von Befestigungsmitteln |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0254775A1 (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5497932A (en) * | 1994-08-12 | 1996-03-12 | Emhart Inc. | Manually operated fastening device |
WO1996038267A1 (en) * | 1995-05-30 | 1996-12-05 | Isaberg Ab | Hand tool |
US5664722A (en) * | 1992-06-17 | 1997-09-09 | Worktools, Inc. | Forward acting, forward grip, staple machine |
WO2006019707A1 (en) * | 2004-07-14 | 2006-02-23 | Fiskars Brands, Inc. | Portable punch device |
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)
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 (de) * | 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 |
-
1986
- 1986-07-31 EP EP86201345A patent/EP0254775A1/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1193879A (de) * | 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)
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 (en) * | 1995-05-30 | 1996-12-05 | Isaberg Ab | Hand tool |
US5979736A (en) * | 1995-05-30 | 1999-11-09 | Isaberg Rapid Ab | Hand tool having reciprocating operating member |
WO2006019707A1 (en) * | 2004-07-14 | 2006-02-23 | Fiskars Brands, Inc. | Portable punch device |
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19880803 |