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AT366311B - HAMMER - Google Patents

HAMMER

Info

Publication number
AT366311B
AT366311B AT142479A AT142479A AT366311B AT 366311 B AT366311 B AT 366311B AT 142479 A AT142479 A AT 142479A AT 142479 A AT142479 A AT 142479A AT 366311 B AT366311 B AT 366311B
Authority
AT
Austria
Prior art keywords
hammer
sheet metal
cross cut
bastard
aligning
Prior art date
Application number
AT142479A
Other languages
German (de)
Other versions
ATA142479A (en
Original Assignee
Gregor Franz
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 Gregor Franz filed Critical Gregor Franz
Priority to AT142479A priority Critical patent/AT366311B/en
Publication of ATA142479A publication Critical patent/ATA142479A/en
Application granted granted Critical
Publication of AT366311B publication Critical patent/AT366311B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06—Removing local distortions
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



   Die Erfindung betrifft einen Hammer zum Ausrichten und Schichten, Kalteinziehen und Warmeinziehen von Blech, insbesondere von Karosserieblech, mit einer mit einem Bastardfeilenkreuzhieb versehenen Schlagfläche, wobei die Schlagfläche in Längsrichtung   konkav gewölbt   ist. Bei derartigen Hämmern ist es bekannt, die Schlagfläche aufzurauhen und mit Zähnen, Spitzen bzw. 



  Feilenhieb zu versehen. 



   Alle diese hier angeführten Schlagflächen weisen keine gute Haftung auf dem Blech auf. Dadurch prallt der Hammer mit den angeführten Schlagflächen ab, die Schlagkraft wird nicht ganz genutzt. Dies wirkt sich am meisten beim Warmeinziehen aus, weil es beim Warmeinziehen notwendig ist, dass der erwärmte Punkt am Blech mit dem Hammer so rasch als möglich eingezogen wird, damit die ganze Schlagkraft des Hammers wirken kann. Die oben angeführten Schlagflächen eines Hammers wirken sich auch beim Kalteinziehen, beim Ausrichten, Schlichten sowie beim Blechspannen ungünstig aus. Zur Vermeidung dieses Nachteils wird gemäss der Erfindung vorgeschlagen, dass die Zähne des Bastardfeilenkreuzhiebes zum Hammergriff hin gerichtet sind. 



   So wird eine gute Haftung erreicht und ein Abprallen des Hammers verhindert. Die Schlagkraft des Hammers wird zur Gänze wirksam, und die Leistung beim Kalt-Warmeinziehen, beim Ausrichten, Schlichten, Blechspannen wird erhöht. 
 EMI1.1 
 der Schlagfläche mit dem Bastardfeilenkreuzhieb vermittelt. Fig. 4 zeigt die Seitenansicht vom unteren Teil des Hammers mit den Zähnen des Bastardfeilenkreuzhiebes, die zum Hammergriff hin gerichtet sind. Die Schlagflächenform kann je nach Verwendungszweck rechteckig, abgerundet, oval oder auch kreisförmig sein. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



   The invention relates to a hammer for aligning and layering, cold drawing and warm drawing of sheet metal, in particular body sheet, with a striking surface provided with a bastard file cross cut, the striking surface being concavely curved in the longitudinal direction. With such hammers it is known to roughen the face and with teeth, tips or



  File cut to be provided.



   All of the striking surfaces listed here do not adhere well to the sheet. As a result, the hammer bounces off the striking surfaces listed, the impact force is not fully used. This has the greatest impact on warm drawing, because when warm drawing in, it is necessary for the heated point on the sheet to be drawn in as quickly as possible with the hammer so that the hammer's full force can work. The above-mentioned striking surfaces of a hammer also have an unfavorable effect when pulling in cold, aligning, finishing and clamping sheet metal. To avoid this disadvantage, it is proposed according to the invention that the teeth of the bastard file cross cut are directed towards the hammer handle.



   This ensures good adhesion and prevents the hammer from bouncing off. The hammer's impact is fully effective, and the performance in cold-warm drawing, aligning, finishing, and clamping is increased.
 EMI1.1
 the face with the bastard crosscut. Fig. 4 shows the side view of the lower part of the hammer with the teeth of the bastard file cross cut, which are directed towards the hammer handle. The shape of the face can be rectangular, rounded, oval or circular, depending on the intended use.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENTANSPRUCH : Hammer zum Ausrichten, Schlichten, Kalteinziehen und Warmeinziehen von Blech und zum Blechspannen, insbesondere von Karosserieblech, mit einer mit einem Bastardfeilenkreuzhieb versehenen Schlagfläche, wobei die Schlagfläche in Längsrichtung leicht konkav gewölbt ist, dadurch gekennzeichnet, dass die Zähne des Bastardfeilenkreuzhiebes zum Hammergriff hin gerichtet sind. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**.   PATENT CLAIM: Hammer for aligning, finishing, cold drawing and warm drawing of sheet metal and for sheet metal clamping, in particular of bodywork sheet metal, with a striking face provided with a bastard file cross cut, the face being slightly concavely curved in the longitudinal direction, characterized in that the teeth of the bastard file cross cut are directed towards the hammer handle . ** WARNING ** End of CLMS field knows overlap beginning of DESC **.
AT142479A 1979-02-23 1979-02-23 HAMMER AT366311B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT142479A AT366311B (en) 1979-02-23 1979-02-23 HAMMER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT142479A AT366311B (en) 1979-02-23 1979-02-23 HAMMER

Publications (2)

Publication Number Publication Date
ATA142479A ATA142479A (en) 1981-08-15
AT366311B true AT366311B (en) 1982-04-13

Family

ID=3513596

Family Applications (1)

Application Number Title Priority Date Filing Date
AT142479A AT366311B (en) 1979-02-23 1979-02-23 HAMMER

Country Status (1)

Country Link
AT (1) AT366311B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994021431A1 (en) * 1993-03-25 1994-09-29 Ben El Hadj Eric Planishing hammer
US10189151B2 (en) 2016-11-14 2019-01-29 Snap-On Incorporated Compact head body hammer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994021431A1 (en) * 1993-03-25 1994-09-29 Ben El Hadj Eric Planishing hammer
FR2702985A1 (en) * 1993-03-25 1994-09-30 Ben El Hadj Eric Hammer to hover.
US10189151B2 (en) 2016-11-14 2019-01-29 Snap-On Incorporated Compact head body hammer

Also Published As

Publication number Publication date
ATA142479A (en) 1981-08-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
REN Ceased due to non-payment of the annual fee