EP0645217A2 - Non-destructive hammer - Google Patents
Non-destructive hammer Download PDFInfo
- Publication number
- EP0645217A2 EP0645217A2 EP94107745A EP94107745A EP0645217A2 EP 0645217 A2 EP0645217 A2 EP 0645217A2 EP 94107745 A EP94107745 A EP 94107745A EP 94107745 A EP94107745 A EP 94107745A EP 0645217 A2 EP0645217 A2 EP 0645217A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- soft
- face
- shells
- mallet
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims description 11
- 239000011324 bead Substances 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000333074 Eucalyptus occidentalis Species 0.000 description 1
- 244000273618 Sphenoclea zeylanica Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/10—Handle constructions characterised by material or shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D1/00—Hand hammers; Hammer heads of special shape or materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D1/00—Hand hammers; Hammer heads of special shape or materials
- B25D1/12—Hand hammers; Hammer heads of special shape or materials having shock-absorbing means
Definitions
- the invention relates to a soft-face mallet with at least one percussion insert held in a housing and a stem socket connected to the housing for the hammer handle.
- Soft mallets of this type are widely used in practice and are usually produced by cutting steel pipes to length, the impact inserts being held in the openings which arise in the axial direction.
- the stem grommet in which the hammer handle is held is welded or soldered onto the outer surface of the steel tube.
- the housing can detach from the stem and be thrown out in an uncontrolled manner. This can happen even with a perfect weld or solder joint due to material fatigue if the soft-face hammer is subject to special stress; the associated risk of injury to people using the soft-face hammer or to persons in the vicinity is not acceptable.
- the object on which the invention is based is therefore to design a soft-face hammer of the type mentioned at the outset in such a way that detachment of the housing from the stem is practically impossible and the functionality of the soft-face hammer remains guaranteed even under high loads.
- the housing and the stem are composed of two half-shells which abut each other in a plane going through the longitudinal axis of the housing and the stem and are firmly connected to one another at the edges, the two half-shells each being formed in one piece are.
- Such a design of a soft mallet ensures that the stem sleeve is an integral part of the housing and so that a connection between the stem sleeve and the housing does not have to be created that can be released again.
- a soft-face mallet can be manufactured in a particularly simple manner, especially when both half-shells are formed in one piece from a sheet metal blank, for example by non-cutting shaping of this sheet metal blank.
- the two half-shells can be made separately. However, it is particularly advantageous if the two half-shells are formed in one piece from a common sheet metal blank.
- the two half-shells can in principle be connected to each other at any point; However, it is advantageous if the two half-shells are connected to one another on the housing, since increased strength is then achieved in the area of the impact forces that occur.
- the half-shells connected to one another on the edge are welded to one another at their mutual contact surfaces of the housing and / or the stem spout or are otherwise permanently connected.
- the weld seams to be applied are not subject to a comparable load as the weld seam between the housing and the stem sleeve according to the prior art.
- a reinforcement rib is provided in the transition area between the housing and the stem, which is formed by edge strips adjoining the edge of each half shell, the two edge strips forming a reinforcement rib lying flat against one another and being welded together at their free edge.
- the housing expediently has an opening on each of its two end faces, in which a baffle plate is arranged at a distance from the edge of the opening, against which the impact insert inserted into the housing lies.
- the baffle plate can be provided with a collar on the edge, which is flush with the edge of the opening and welded to it or otherwise permanently connected.
- a preferred embodiment of the invention is characterized in that a part of the cavity formed in the housing is filled with shot, which has a damping effect on the kickback of the soft-face hammer.
- the opening formed by the stem nozzle is expediently provided for filling the cavity.
- the opening can be closed by a detachably inserted stopper, so that it is possible to replace the shot filling even after the baffle plate has been welded in and the impact insert has been inserted, thus achieving a variation in the damping effect.
- beads are formed in the housing to stiffen the housing wall, since thinner sheet metal can then be used for cutting the sheet metal and for reshaping the half-shells.
- the beads are aligned parallel to the edge of the opening and form stops for the baffle plate.
- the hammer handle is integrally formed on the stem nozzle.
- a particularly good holding and fastening of the impact insert is achieved if the baffle plate is provided with inwardly directed beads for holding the impact insert.
- baffle plate is molded onto the half-shell and is formed in one piece with it.
- this requires a larger width of the sheet metal blank.
- the embodiment of the soft mallet shown in the drawing consists of two striking inserts 2 held in a housing 1 and a grommet 3 connected to the housing 1 for the hammer handle 16.
- the housing 1 and the grommet 3 are composed of two half-shells 5, 6 which are combined in one through the longitudinal axis 4 of the housing 1 and the stem 3 level abut each other.
- the two half-shells 5, 6 are firmly connected to one another at the edges by being welded to one another on the mutual contact surfaces of the housing 1 and the stem nozzle 3.
- the two half-shells 5, 6 each form a half 3 of the stem and the housing 1, so they are made in one piece.
- the two half-shells 5, 6 are also connected to one another on the housing 1, so that both half-shells 5, 6 are formed in one piece from a sheet metal blank.
- a reinforcing rib 7 is provided which is connected to the housing 1 and the stem 3. Furthermore, the housing 1 has an opening for the impact inserts 2 on the two opposite end faces, in each of which an impact plate 9 is arranged at a distance from the edge of the respective opening 8.
- the baffle plate 9 can also be formed from the sheet metal blank and can be formed in one piece with the housing 1. The baffle plate 1 is brought into the final shape shown in FIGS. 6 and 7 by welding and is welded into the housing 1. Are on the baffle plate 9 Beads 10 are provided for holding the respective impact insert 2, which is thereby held firmly in the housing 1.
- the impact insert 2 is secured in the housing 1 against rotation in a simple manner, since the housing 1 and the impact insert 2 are rectangular in cross section.
- beads 11 are further formed, which reinforce the housing wall and at the same time form stops for the baffle plate 9, that is, they facilitate positioning when inserted into the housing 1.
- the cavity 12 formed in the housing 1 of the soft-face hammer is filled with shot 14 through an opening 13, as a result of which non-return damping is achieved.
- This opening 13 is formed by the hollow stem 3 and can be closed by a detachably inserted plug 15.
- the sheet metal blank is selected so that the hammer handle 16 is integrally formed on the stem grommet 3.
- the hammer handle can additionally carry a surface-structured sheathing made of plastic, rubber or the like.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Die Erfindung betrifft einen Schonhammer mit wenigstens einem in einem Gehäuse gehaltenen Schlageinsatz und einer am Gehäuse angeschlossenen Stieltülle für den Hammerstiel.The invention relates to a soft-face mallet with at least one percussion insert held in a housing and a stem socket connected to the housing for the hammer handle.
Derartige Schonhämmer sind in der Praxis weit verbreitet und werden üblicherweise durch Ablängen von Stahlrohren hergestellt, wobei in den in axialer Richtung entstehenden Öffnungen die Schlageinsätze gehalten werden. An die Außenmantelfläche des Stahlrohres wird die Stieltülle angeschweißt oder angelötet, in der der Hammerstiel gehalten wird.Soft mallets of this type are widely used in practice and are usually produced by cutting steel pipes to length, the impact inserts being held in the openings which arise in the axial direction. The stem grommet in which the hammer handle is held is welded or soldered onto the outer surface of the steel tube.
Ist aber die Schweiß- oder Lötverbindung zwischen Gehäuse und Stieltülle nicht absolut einwandfrei ausgeführt, kann sich das Gehäuse von der Stieltülle lösen und unkontrolliert weggeschleudert werden. Dies kann selbst bei einer einwandfreien Schweiß- oder Lötverbindung infolge Materialermüdung geschehen, wenn der Schonhammer einer besonderen Beanspruchung unterliegt; die damit verbundene Verletzungsgefahr der den Schonhammer verwendenden oder der in der Nähe befindlichen Personen ist nicht akzeptabel.If, however, the welded or soldered connection between the housing and the stem is not absolutely perfect, the housing can detach from the stem and be thrown out in an uncontrolled manner. This can happen even with a perfect weld or solder joint due to material fatigue if the soft-face hammer is subject to special stress; the associated risk of injury to people using the soft-face hammer or to persons in the vicinity is not acceptable.
Die der Erfindung zugrunde liegende Aufgabe besteht daher darin, einen Schonhammer der eingangs genannten Art so auszubilden, daß das Ablösen des Gehäuses von der Stieltülle praktisch ausgeschlossen ist und die Funktionsfähigkeit des Schonhammers auch bei hoher Beanspruchung gewährleistet bleibt.The object on which the invention is based is therefore to design a soft-face hammer of the type mentioned at the outset in such a way that detachment of the housing from the stem is practically impossible and the functionality of the soft-face hammer remains guaranteed even under high loads.
Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß das Gehäuse und die Stieltülle aus zwei Halbschalen zusammengesetzt sind, die in einer durch die Längsachse des Gehäuses sowie der Stieltülle gehenden Ebene aneinander anliegen und randseitig fest aneinander angeschlossen sind, wobei die beiden Halbschalen jeweils einstückig ausgebildet sind.This object is achieved according to the invention in that the housing and the stem are composed of two half-shells which abut each other in a plane going through the longitudinal axis of the housing and the stem and are firmly connected to one another at the edges, the two half-shells each being formed in one piece are.
Durch eine derartige Ausgestaltung eines Schonhammers wird zum einen erreicht, daß die Stieltülle ein integraler Bestandteil des Gehäuses ist und so nicht erst eine Verbindung zwischen Stieltülle und Gehäuse geschaffen werden muß, die sich wieder lösen kann. Zum anderen ist ein derartiger Schonhammer in besonders einfacher Weise zu fertigen, insbesondere dann, wenn beide Halbschalen einstückig aus einem Blechzuschnitt geformt sind, beispielsweise durch spanlose Umformung dieses Blechzuschnittes.Such a design of a soft mallet on the one hand ensures that the stem sleeve is an integral part of the housing and so that a connection between the stem sleeve and the housing does not have to be created that can be released again. On the other hand, such a soft-face mallet can be manufactured in a particularly simple manner, especially when both half-shells are formed in one piece from a sheet metal blank, for example by non-cutting shaping of this sheet metal blank.
Prinzipiell können die beiden Halbschalen getrennt voneinander angefertigt werden. Von besonderem Vorteil ist es jedoch, wenn beide Halbschalen einstückig aus einem gemeinsamen Blechzuschnitt geformt sind. Dabei können die beiden Halbschalen grundsätzlich an jeder beliebigen Stelle miteinander verbunden sein; vorteilhaft ist es aber, wenn beide Halbschalen am Gehäuse miteinander verbunden sind, da dann im Bereich der auftretenden Schlagkräfte eine erhöhte Festigkeit erreicht wird.In principle, the two half-shells can be made separately. However, it is particularly advantageous if the two half-shells are formed in one piece from a common sheet metal blank. The two half-shells can in principle be connected to each other at any point; However, it is advantageous if the two half-shells are connected to one another on the housing, since increased strength is then achieved in the area of the impact forces that occur.
Weiterhin empfiehlt es sich, daß die randseitig aneinander angeschlossenen Halbschalen an ihren gegenseitigen Anlageflächen des Gehäuses und/oder der Stieltülle miteinander verschweißt oder auf andere Weise unlösbar verbunden sind. Die dabei anzubringenden Schweißnähte unterliegen keiner vergleichbaren Belastung wie die Schweißnaht zwischen Gehäuse und Stieltülle nach dem Stand der Technik.Furthermore, it is recommended that the half-shells connected to one another on the edge are welded to one another at their mutual contact surfaces of the housing and / or the stem spout or are otherwise permanently connected. The weld seams to be applied are not subject to a comparable load as the weld seam between the housing and the stem sleeve according to the prior art.
In weiter bevorzugter Ausführungsform ist im Übergangsbereich zwischen Gehäuse und Stieltülle eine Verstärkungsrippe vorgesehen, die von randseitig an jede der Halbschalen anschließenden Randstreifen gebildet ist, wobei die beiden gemeinsam eine Verstärkungsrippe bildenden Randstreifen plan einander anliegen und an ihrem freien Rand miteinander verschweißt sind. Dadurch wird nicht nur die an die Stieltülle angrenzende Fläche des Blechzuschnittes sinnvoll ausgenutzt, sondern die Festigkeit im Bereich zwischen Gehäuse und Stieltülle weiter erhöht.In a further preferred embodiment, a reinforcement rib is provided in the transition area between the housing and the stem, which is formed by edge strips adjoining the edge of each half shell, the two edge strips forming a reinforcement rib lying flat against one another and being welded together at their free edge. As a result, not only is the area of the sheet metal blank adjoining the stem sleeve used to advantage, but the strength in the area between the housing and the stem sleeve further increased.
Zweckmäßigerweise weist das Gehäuse an jeder seiner beiden Stirnseiten eine Öffnung auf, in der mit Abstand zum Rand der Öffnung eine Prallplatte angeordnet ist, an der der in das Gehäuse eingesetzte Schlageinsatz anliegt. Die Prallplatte kann randseitig mit einem Kragen versehen sein, der mit dem Rand der Öffnung bündig abschließt und mit diesem verschweißt oder auf andere Weise unlösbar verbunden ist.The housing expediently has an opening on each of its two end faces, in which a baffle plate is arranged at a distance from the edge of the opening, against which the impact insert inserted into the housing lies. The baffle plate can be provided with a collar on the edge, which is flush with the edge of the opening and welded to it or otherwise permanently connected.
Eine bevorzugte Ausführungsform der Erfindung ist dadurch gekennzeichnet, daß ein Teil des im Gehäuse gebildeten Hohlraums mit Schrot befüllt ist, das eine den Rückschlag des Schonhammers dämpfende Wirkung hat. Zweckmäßigerweise ist zur Befüllung des Hohlraums die von der Stieltülle gebildete Öffnung vorgesehen. Außerdem kann die Öffnung durch einen lösbar eingesetzten Stopfen verschließbar sein, so daß es möglich ist, auch nach dem Einschweißen der Prallplatte und dem Einsetzen des Schlageinsatzes die Schrotfüllung auszuwechseln und so eine Variation der Dämpfungswirkung zu erreichen. Weiterhin empfiehlt es sich, den Schonhammer so auszubilden, daß der Schlageinsatz und das Gehäuse einen gegen Verdrehung sichernden unrunden Querschnitt aufweisen. Zweckmäßigerweise wird das dadurch erreicht, daß das Gehäuse und der Schlageinsatz im Querschnitt rechteckig ausgebildet sind.A preferred embodiment of the invention is characterized in that a part of the cavity formed in the housing is filled with shot, which has a damping effect on the kickback of the soft-face hammer. The opening formed by the stem nozzle is expediently provided for filling the cavity. In addition, the opening can be closed by a detachably inserted stopper, so that it is possible to replace the shot filling even after the baffle plate has been welded in and the impact insert has been inserted, thus achieving a variation in the damping effect. It is also advisable to design the soft-face hammer in such a way that the impact insert and the housing have a non-circular cross-section which prevents rotation. This is expediently achieved in that the housing and the impact insert are rectangular in cross section.
Vorteilhaft ist es auch, wenn im Gehäuse zur Versteifung der Gehäusewand Sicken eingeformt sind, da dann dünneres Blech für den Blechzuschnitt und für die Umformung der Halbschalen verwendet werden kann. In weiter bevorzugter Ausführungsform ist vorgesehen, daß die Sicken parallel zum Rand der Öffnung ausgerichtet sind und Anschläge für die Prallplatte bilden.It is also advantageous if beads are formed in the housing to stiffen the housing wall, since thinner sheet metal can then be used for cutting the sheet metal and for reshaping the half-shells. In more preferred Embodiment is provided that the beads are aligned parallel to the edge of the opening and form stops for the baffle plate.
Ebenso besteht die Möglichkeit, daß der Hammerstiel einstückig an die Stieltülle angeformt ist. Eine besonders gute Halterung und Befestigung des Schlageinsatzes wird erreicht, wenn die Prallplatte mit einwärts gerichteten Sicken zur Halterung des Schlageinsatzes versehen sind.There is also the possibility that the hammer handle is integrally formed on the stem nozzle. A particularly good holding and fastening of the impact insert is achieved if the baffle plate is provided with inwardly directed beads for holding the impact insert.
Weiter besteht die Möglichkeit, daß die Prallplatte an die Halbschale angeformt und einstückig mit ihr ausgebildet ist. Dies macht allerdings eine größere Breite des Blechzuschnitts erforderlich.There is also the possibility that the baffle plate is molded onto the half-shell and is formed in one piece with it. However, this requires a larger width of the sheet metal blank.
Im folgenden wird die Erfindung an einem in der Zeichnung dargestellten Ausführungsbeispiel näher erläutert; es zeigen:
- Fig. 1
- einen erfindungsgemäßen Schonhammer in einer Seitenansicht, teilweise im Schnitt;
- Fig. 2
- den Schnitt II-II nach Fig. 1;
- Fig. 3
- den Gegenstand nach Fig. 1 in Draufsicht, teilweise im Schnitt;
- Fig. 4
- den Schnitt IV-IV nach Fig. 3;
- Fig. 5
- die Prallplatte in ungeformtem Zustand;
- Fig. 6
- die zum Einsatz in das Gehäuse geformte Prallplatte und
- Fig. 7
- den Schnitt VII-VII nach Fig. 6.
- Fig. 1
- a soft hammer according to the invention in a side view, partly in section;
- Fig. 2
- the section II-II of FIG. 1;
- Fig. 3
- the object of Figure 1 in plan view, partially in section.
- Fig. 4
- the section IV-IV of Fig. 3;
- Fig. 5
- the baffle plate in the unshaped state;
- Fig. 6
- the baffle plate shaped for use in the housing and
- Fig. 7
- the section VII-VII of FIG. 6th
Die in der Zeichnung dargestellte Ausführungsform des Schonhammers besteht aus zwei in einem Gehäuse 1 gehaltenen Schlageinsätzen 2 und einer am Gehäuse 1 angeschlossenen Stieltülle 3 für den Hammerstiel 16. Das Gehäuse 1 und die Stieltülle 3 sind aus zwei Halbschalen 5, 6 zusammengesetzt, die in einer durch die Längsachse 4 des Gehäuses 1 sowie der Stieltülle 3 gehenden Ebene aneinander anliegen. Die beiden Halbschalen 5, 6 sind randseitig fest aneinander angeschlossen, indem sie an den gegenseitigen Anlageflächen des Gehäuses 1 und der Stieltülle 3 miteinander verschweißt sind. Die beiden Halbschalen 5, 6 bilden jeweils eine Hälfte 3 der Stieltülle und des Gehäuses 1, sind also einstückig ausgebildet. Des weiteren sind aber auch beide Halbschalen 5, 6 am Gehäuse 1 miteinander verbunden, so daß beide Halbschalen 5, 6 einstückig aus einem Blechzuschnitt geformt sind.The embodiment of the soft mallet shown in the drawing consists of two striking inserts 2 held in a housing 1 and a
Im Übergangsbereich zwischen der Stieltülle 3 und dem Gehäuse 1 ist eine mit dem Gehäuse 1 und der Stieltülle 3 verbundene Verstärkungsrippe 7 vorgesehen. Weiterhin weist das Gehäuse 1 an den beiden gegenüberliegenden Stirnflächen jeweils eine Öffnung für die Schlageinsätze 2 auf, in denen mit Abstand zum Rand der jeweiligen Öffnung 8 jeweils eine Prallplatte 9 angeordnet ist. In einer weiteren, nicht dargestellten Ausführungsform kann die Prallplatte 9 ebenfalls mit aus dem Blechzuschnitt geformt und einstückig mit dem Gehäuse 1 ausgebildet sein. Durch Umfalzen wird die Prallplatte 1 in die endgültige, in den Fig. 6 und 7 dargestellten Form gebracht und in das Gehäuse 1 eingeschweißt. An der Prallplatte 9 sind Sicken 10 für die Halterung des jeweiligen Schlageinsatzes 2 vorgesehen, der dadurch fest im Gehäuse 1 gehalten ist. Der Schlageinsatz 2 ist im Gehäuse 1 in einfacher Weise gegen Verdrehung gesichert, da das Gehäuse 1 und der Schlageinsatz 2 im Querschnitt rechteckig ausgebildet sind. Im Gehäuse 1 sind weiterhin Sicken 11 eingeformt, die die Gehäusewand verstärken und zugleich Anschläge für die Prallplatte 9 bilden, also beim Einsetzen in das Gehäuse 1 die Positionierung erleichtern.In the transition region between the
Der im Gehäuse 1 des Schonhammers gebildete Hohlraum 12 wird durch eine Öffnung 13 mit Schrot 14 befüllt, wodurch eine Rückschlagdämpfung erreicht wird. Diese Öffnung 13 wird durch die hohle Stieltülle 3 gebildet und ist durch einen lösbar eingesetzten Stopfen 15 verschließbar.The
In der dargestellten Ausführungsform ist der Blechzuschnitt so gewählt, daß der Hammerstiel 16 einstückig an die Stieltülle 3 angeformt ist. Dabei kann der Hammerstiel zusätzlich eine oberflächenstrukturierte Ummantelung aus Kunststoff, Gummi oder dergl. tragen.In the illustrated embodiment, the sheet metal blank is selected so that the hammer handle 16 is integrally formed on the
Claims (17)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4331660A DE4331660A1 (en) | 1993-09-17 | 1993-09-17 | Soft-face hammer |
| DE4331660 | 1993-09-17 | ||
| US08/388,048 US5537896A (en) | 1993-09-17 | 1995-02-09 | Nonmarring hammer |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0645217A2 true EP0645217A2 (en) | 1995-03-29 |
| EP0645217A3 EP0645217A3 (en) | 1996-07-10 |
| EP0645217B1 EP0645217B1 (en) | 2001-04-04 |
Family
ID=25929649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94107745A Expired - Lifetime EP0645217B1 (en) | 1993-09-17 | 1994-05-19 | Non-destructive hammer |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5537896A (en) |
| EP (1) | EP0645217B1 (en) |
| DE (1) | DE4331660A1 (en) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD384564S (en) * | 1995-07-28 | 1997-10-07 | Hultafors Ab | Hammer |
| SE510427C2 (en) * | 1995-07-28 | 1999-05-25 | Hultafors Ab | Hammer with counterweight at the end of the shaft |
| US5768956A (en) * | 1996-03-28 | 1998-06-23 | Coonrad; Todd Douglas | Striking tool |
| US6106755A (en) * | 1996-09-09 | 2000-08-22 | Pfoertner; Rolf F. K. G. | Method of making a cast urethane striking tool |
| US6016722A (en) * | 1997-07-21 | 2000-01-25 | Emerson Electric Co. | Shock-absorbing claw hammer |
| US6128977A (en) * | 1997-04-09 | 2000-10-10 | Emerson Electric Co. | Shock-absorbing claw hammer |
| US6763747B1 (en) | 1997-04-09 | 2004-07-20 | Emerson Electric Co. | Shock absorbing hammer and handle assembly |
| US5960677A (en) * | 1998-03-13 | 1999-10-05 | Carmien; Joseph Allen | Nonrecoil impact tool |
| US6477922B1 (en) | 1998-04-29 | 2002-11-12 | John A. Burnett | Impact tool |
| US6227075B1 (en) | 1999-01-25 | 2001-05-08 | Joseph Allen Carmien | Nonrecoil hammer |
| US6595087B2 (en) | 2001-11-21 | 2003-07-22 | Snap-On Technologies, Inc. | Encapsulated dead blow hammer with improved skeleton |
| US6543377B1 (en) * | 2001-12-31 | 2003-04-08 | Brett H. Weir | Boat release apparatus |
| US6904829B2 (en) | 2002-09-17 | 2005-06-14 | Anthony Krallman | Deadblow hammer |
| US7890938B2 (en) * | 2003-02-26 | 2011-02-15 | Novell, Inc. | Heterogeneous normalization of data characteristics |
| US7143667B2 (en) * | 2004-07-29 | 2006-12-05 | Atom Design Inc. | Striking or pulling tool with a split head |
| US7168338B2 (en) * | 2004-11-29 | 2007-01-30 | Snap-On Incorporated | Dead blow hammer with composite holder |
| CA2506986A1 (en) * | 2005-05-10 | 2006-11-10 | Garant Gp | A shaft for tools, and tool and a method of fabrication thereof |
| BG941U1 (en) * | 2007-01-29 | 2007-11-30 | Десислава САРАФСКА | Nonrecoil hammer |
| DE102009058582B4 (en) | 2009-12-17 | 2024-01-25 | I A Autenrieth Kunststofftechnik Gmbh & Co. Kg | Recoil-absorbing hammer |
| US9044846B1 (en) * | 2012-08-07 | 2015-06-02 | Tech Swerve Llc | Adjustable lightweight camping mallet |
| TWI447002B (en) * | 2013-03-07 | 2014-08-01 | Earthquake hammer structure | |
| US11097438B2 (en) | 2013-03-15 | 2021-08-24 | Tech Swerve, Llc | Adjustable weight striking device |
| KR101490037B1 (en) * | 2013-08-08 | 2015-02-04 | 권재열 | A hammer protective function have neck |
| AT15241U1 (en) * | 2015-04-07 | 2017-04-15 | Ing Johann Hörtnagl - Werkzeuge Gmbh | Tool with a handle and a handle attached to the tool part |
| USD925669S1 (en) * | 2017-08-02 | 2021-07-20 | Shawn Richardson | Bodybuilding hammer |
| USD888525S1 (en) * | 2019-01-18 | 2020-06-30 | Brevetti Montolit S.P.A. | Hammer |
| USD904606S1 (en) | 2019-02-07 | 2020-12-08 | Aesculap Ag | Surgical hammer |
| USD929840S1 (en) * | 2020-03-16 | 2021-09-07 | Ming Chen | Hammer |
| USD963456S1 (en) * | 2021-02-21 | 2022-09-13 | Jingbo Gao | Hammer |
| TWD215308S (en) * | 2021-03-25 | 2021-11-11 | 施瑞源 | The part of the dual purpose hammer |
| USD989589S1 (en) * | 2021-10-14 | 2023-06-20 | Helen Of Troy Limited | Mallet |
| USD1021598S1 (en) | 2022-05-11 | 2024-04-09 | Snap-On Incorporated | Dead blow hammer |
| USD1038730S1 (en) * | 2022-09-01 | 2024-08-13 | Dongguan Hongdui Mechanical Equipment Technology Co., Ltd | Hammer |
| US20240316739A1 (en) * | 2023-03-21 | 2024-09-26 | Snap-On Incorporated | Soft-faced dead blow hammer |
| USD1051694S1 (en) * | 2023-07-18 | 2024-11-19 | Hangzhou Shengdeyi Plastic & Electromechanical Co., Ltd. | Non-elastic hammer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2894550A (en) * | 1957-06-19 | 1959-07-14 | John R Sassaman | Hammer |
| DE2152761A1 (en) * | 1971-06-22 | 1972-12-28 | Custom Electronic Systems, Inc., Indianapolis, Ind. (V.StA.) | Impact tool |
| DE2700993A1 (en) * | 1976-01-12 | 1977-07-14 | Ces Inc | HAMMER |
| US4882955A (en) * | 1987-05-26 | 1989-11-28 | Davorin Savnik | Angled head hammer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1674999A (en) * | 1927-07-25 | 1928-06-26 | Garland Mfg Company | Soft-face hammer |
| GB646775A (en) * | 1945-11-26 | 1950-11-29 | Sidney Geoffrey Young | Improvements in hammers, axes and the like |
| US3844321A (en) * | 1971-06-22 | 1974-10-29 | Custom Electronic Syst Inc | Unitarily cast hammer |
| US4393908A (en) * | 1981-04-29 | 1983-07-19 | Clay Howard W | Hammer with two detachable heads |
| US5375486A (en) * | 1991-06-10 | 1994-12-27 | Carmien; Joseph A. | Surface protective striking tools |
-
1993
- 1993-09-17 DE DE4331660A patent/DE4331660A1/en not_active Withdrawn
-
1994
- 1994-05-19 EP EP94107745A patent/EP0645217B1/en not_active Expired - Lifetime
-
1995
- 1995-02-09 US US08/388,048 patent/US5537896A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2894550A (en) * | 1957-06-19 | 1959-07-14 | John R Sassaman | Hammer |
| DE2152761A1 (en) * | 1971-06-22 | 1972-12-28 | Custom Electronic Systems, Inc., Indianapolis, Ind. (V.StA.) | Impact tool |
| DE2700993A1 (en) * | 1976-01-12 | 1977-07-14 | Ces Inc | HAMMER |
| US4882955A (en) * | 1987-05-26 | 1989-11-28 | Davorin Savnik | Angled head hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0645217B1 (en) | 2001-04-04 |
| EP0645217A3 (en) | 1996-07-10 |
| DE4331660A1 (en) | 1995-03-23 |
| US5537896A (en) | 1996-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0645217A2 (en) | Non-destructive hammer | |
| DE2952176C2 (en) | Guide arm for wheel suspensions of motor vehicles | |
| DE2653840C3 (en) | ||
| DE102006024296A1 (en) | tongs | |
| DE4441220A1 (en) | Pendulum support or the like for the articulated connection of chassis parts in motor vehicles | |
| DE2234092A1 (en) | HAND TOOL | |
| DE1301778B (en) | Impact tool | |
| DE4206588C2 (en) | Soft hammer with interchangeable hammer heads | |
| DE1814847A1 (en) | Scraper | |
| DE10118202A1 (en) | Panel structure for vehicle body has outer strengthening panel, lateral longitudinal bearer and rear intermediate strengthening panel integrally joined at longitudinal ends, overlapping section | |
| DE69003025T2 (en) | Chain link made of polymer material. | |
| EP0297053A1 (en) | Dowel assembly | |
| EP1317988A2 (en) | Component in vehicle parts with a joint achieved by pressure welding | |
| DE102017010291B4 (en) | Welding arrangement and a vehicle comprising such a welding arrangement | |
| DE19737129C2 (en) | Pliers | |
| DE29515833U1 (en) | Tool handle for a screwdriver | |
| DE821035C (en) | Lock pocket for pit stamp | |
| DE2757316C2 (en) | Kickback free hammer | |
| DE4244208A1 (en) | Device for the rigid connection of two pipes | |
| DE2914716C2 (en) | Sheet steel-wood nail connection | |
| DE69404260T2 (en) | MOTION TRANSMISSION ROD WITH A SAFETY DEVICE | |
| DE10340357A1 (en) | Joint structure for vehicle roof and body parts has bulkhead wall in longitudinal roof support area with its surface perpendicular extending in longitudinal direction of longitudinal support to prevent distortion on impact | |
| DE2314443C2 (en) | Kickback free hammer | |
| DE3530086C2 (en) | Nail, especially cobbler nail | |
| DE29609151U1 (en) | Scissors with eyes covered with plastic |
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: A2 Designated state(s): DE FR GB IT |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19960612 |
|
| 17Q | First examination report despatched |
Effective date: 19990204 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
| ITF | It: translation for a ep patent filed | ||
| ET | Fr: translation filed | ||
| REF | Corresponds to: |
Ref document number: 59409708 Country of ref document: DE Date of ref document: 20010510 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20010614 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20130301 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20130311 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20130525 Year of fee payment: 20 Ref country code: FR Payment date: 20130604 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59409708 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20140518 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20140518 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20140520 |