DE3909607A1 - Device for tensioning fret-saw frames - Google Patents

Device for tensioning fret-saw frames

Info

Publication number
DE3909607A1
DE3909607A1 DE19893909607 DE3909607A DE3909607A1 DE 3909607 A1 DE3909607 A1 DE 3909607A1 DE 19893909607 DE19893909607 DE 19893909607 DE 3909607 A DE3909607 A DE 3909607A DE 3909607 A1 DE3909607 A1 DE 3909607A1
Authority
DE
Germany
Prior art keywords
fret
saw
tensioning
frame
saw blade
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.)
Ceased
Application number
DE19893909607
Other languages
German (de)
Inventor
Heiko Westenhoefer
Klaus Schiffler
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 DE19893909607 priority Critical patent/DE3909607A1/en
Publication of DE3909607A1 publication Critical patent/DE3909607A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
    • B23D51/12—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height
    • B23D51/125—Blade tensioning means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

In the case of the known fret-saw frames, the fret-saw blade has to be screwed tight in the tensioned state of the fret-saw frame. With the new device, the saw blade can first be fitted and then the frame is tensioned by shifting the tensioning lever. By shifting the tensioning lever, the retaining bolt for the fret-saw blade is withdrawn in the housing and the fret-saw frame tensioned. This is achieved in that the guide pin in the retaining bolt is moved through an elongated hole in the tensioning lever until arrested. The device for tensioning fret-saw frames makes it possible to firmly tension the fret-saw blade and tension the frame separately, which is necessary especially for children.

Description

Die zur Anmeldung gebrachte Vorrichtung zum Spannen von Laubsäge­ bögen erleichtert das Spannen von Laubsägen. Im entspannten Zustand (1) wird zunächst das Laubsägeblatt eingespannt, und anschließend wird durch Umlegen des Spannhebels (3) der Bogen gespannt (2).The device for clamping jigsaws brought to registration facilitates the clamping of jigsaws. In the relaxed state ( 1 ), the fretsaw blade is first clamped, and then the bow is clamped ( 2 ) by turning the clamping lever ( 3 ).

Vor allem Kindern bis zum Alter von 14 Jahren ist es fast unmöglich, bei den herkömmlichen Laubsägen bei gespanntem Zustand des Bogens gleichzeitig das Laubsägeblatt einzulegen und festzuspannen.Especially children up to the age of 14 it is almost impossible with conventional fretsaws when the bow is in a stretched condition at the same time insert the jigsaw blade and tighten it.

Durch Umlegen des Spannhebels (3) wird bei der neuen Vorrichtung nach dem Festspannen des Laubsägblattes der im Führungsstift (4) be­ festigte Haltebolzen (5) im Gehäuse (6) zurückgezogen und gespannt. Ein Verdrehen des Führungsstiftes (4) ist nicht möglich, da der Halte­ bolzen (5) in einem Langloch (7) läuft.By moving the clamping lever (3) of the Laubsägblattes be in the guide pin (4) solidified retaining pin (5) is retracted in the housing (6) and tensioned when the new device after clamping. Rotation of the guide pin ( 4 ) is not possible because the retaining bolt ( 5 ) runs in an elongated hole ( 7 ).

Claims (1)

Die Vorrichtung zum Spannen von Laubsägebögen soll als Einheit unter Schutz gestellt werden. Im Detail gehören folgende Teile zur Vorrichtung: Gehäuse, Haltebolzen, Führungsstift, Spannhebel.The device for tensioning jigsaws is designed as a unit below Protection. In detail, the following parts belong to the device: Housing, retaining bolt, guide pin, clamping lever.
DE19893909607 1989-03-23 1989-03-23 Device for tensioning fret-saw frames Ceased DE3909607A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893909607 DE3909607A1 (en) 1989-03-23 1989-03-23 Device for tensioning fret-saw frames

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893909607 DE3909607A1 (en) 1989-03-23 1989-03-23 Device for tensioning fret-saw frames

Publications (1)

Publication Number Publication Date
DE3909607A1 true DE3909607A1 (en) 1990-09-27

Family

ID=6377066

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893909607 Ceased DE3909607A1 (en) 1989-03-23 1989-03-23 Device for tensioning fret-saw frames

Country Status (1)

Country Link
DE (1) DE3909607A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768971A (en) * 1996-03-01 1998-06-23 Black & Decker Inc. Scroll saw
CN103081976A (en) * 2013-02-04 2013-05-08 江苏科技大学 Handheld wire saw used for cutting hard food

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE136026C (en) *
AT59004B (en) * 1911-10-28 1913-05-10 Johann Weber Clamping device for hacksaws.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE136026C (en) *
AT59004B (en) * 1911-10-28 1913-05-10 Johann Weber Clamping device for hacksaws.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768971A (en) * 1996-03-01 1998-06-23 Black & Decker Inc. Scroll saw
CN103081976A (en) * 2013-02-04 2013-05-08 江苏科技大学 Handheld wire saw used for cutting hard food

Similar Documents

Publication Publication Date Title
GB2352416A (en) Clamping device
GB1272342A (en) A clamp for an optical device or equipment
DE59509745D1 (en) Clamping device for clamping a workpiece on a clamping table
SE8800793L (en) SPAENNANORDNING
DE3909607A1 (en) Device for tensioning fret-saw frames
US3913440A (en) Guide device for power saw and the like
DE3169576D1 (en) Holding device for padlock with long shackles
DE69412329D1 (en) Fastening device between a support and moving part and a tool
CH608735A5 (en) Rapid clamping device for a parallel vice
GB1462262A (en) Hand saw having releasable blade
GB2131358A (en) Device for trimming a container
FR2344365A1 (en) Tensioner for hacksaw frame - has tension screw on top of handle to act through fulcrum and lever frame legs apart
GB2005175A (en) Clamping tailstocks
ATE46646T1 (en) DEVICE FOR JOINING WOOD AND METAL STRUCTURES.
US2343391A (en) Vise
DE335785C (en) Device on machines for processing wood, metal and similar materials for aligning, inserting and processing workpieces
SE8204727L (en) BANDSTRECKARE
FR2301345A2 (en) Fret saw blade securing jaw - includes sliding locking bolt on each vertical arm of frame
FR2430501A1 (en) LOCK FOR MOTORCYCLE HELMETS (INTEGRAL)
DE867276C (en) Cuevette for the production of dentures
SU1710265A1 (en) Method of installation of blade
FR2413529A1 (en) TEMPLATE FOR THE REALIZATION OF CAVITIES INTENDED TO RECEIVE HARDWARE PARTS IN THE FRAME OF A WINDOW, A DOOR OR SIMILAR
DE3165739D1 (en) Work clamp
EP0046977A3 (en) Method of stretching saw blades on a gang saw provided with a hydraulically actuated stretching device, hydraulic stretching device and stretching tool
ES435957A1 (en) A blocking device for platform mounts. (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8122 Nonbinding interest in granting licenses declared
8131 Rejection