DK160137B

DK160137B - Hose-HAANDSPAENDESAV

Info

Publication number: DK160137B
Application number: DK189186A
Authority: DK
Inventors: Tord Englund
Original assignee: Santrade Ltd
Priority date: 1985-04-25
Filing date: 1986-04-24
Publication date: 1991-02-04
Also published as: SE457939B; DK189186D0; FR2580980A1; DK160137C; SE8502001L; DK189186A; FR2580980B1; DE3613678C2; DE3613678A1; SE8502001D0

Description

DK 160137 BDK 160137 B

Opfindelsen angår en rørbøjle-håndspændesav med en ved spænding af savklingen mod rørbøjlens greb anliggende spændearm og med et udskifteligt, løst i området for rørbøjlens greb anbragt håndbeskyttelsesgreb, der er dannet 5 ud i ét og har sidestykker, der delvis omgiver rørbøjlens greb, idet den spændte spændearm støtter mod håndbeskyttelsesgrebet.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a handheld clamping saw having a clamping arm adjacent to the clamping handle by tensioning the saw blade and having an interchangeable, hand-held grip in the region of the clamping handle, formed in one and having side pieces partially surrounding the handlebar handle. clamped clamping arm supports against hand protection grip.

Fra DE-OS 2 016 309 kendes en sådan rørbøjle-håndspænde-10 sav, ved hvilken grebet til skåning af hånden, der fatter om rørbøjlens greb, og til samtidig forhindring af beskadigelser af hånden har et på dette optrukket beskyttelsesorgan af plast, der i savretningen er forsynet med en i savklingens centrum liggende udbredelsesribbe, som 15 har en håndbred, indvendigt af en kurvebueformet begrænsningsribbe omgivet gennemgående udsparing. Mod dette først op på grebet skudte håndbeskyttelsesgreb støtter den derefter anbragte og spændende opadsvungne spændearm.From DE-OS 2 016 309 there is known such a pipe clamp hand clamp saw, in which the handle for spotting the hand which grips the grip of the pipe clamp and for simultaneously preventing damage to the hand has a plastic protective member pulled up on it. the sawing direction is provided with a propagating rib located in the center of the saw blade, which has a hand width, internally of a curved arc-shaped restriction rib surrounded by recesses. Against this, the hand protection grip shot against the grip first supports the positioned and exciting upward swinging clamping arm.

20 Ved denne kendte rørbøjle-håndspændesav kan det på grebet skudte håndbeskyttelsesgreb let drejes og/eller forskydes, så at beskadigelse af hånden ved pludselig skråstilling af saven ikke kan hindres med sikkerhed.20 With this known pipe-clamp hand clamping saw, the handguard grip shot on the handle can be easily rotated and / or displaced, so that damage to the hand by sudden slanting of the saw cannot be prevented with safety.

25 Formålet for opfindelsen er at angive en rørbøjle-hånd-spændesav af den indledningsvis nævnte art, ved hvilken håndbeskyttelsesgrebet er fastholdt bedre og sikrere, og håndbeskadigelser kan undgås med større sikkerhed.The object of the invention is to provide a pipe hand-clamping saw of the kind mentioned above, in which the hand protection grip is better and more secure and hand damage can be avoided with greater certainty.

30 Dette formål opnås ved, at sidestykkerne af den spændte spændearm presses med rørbøjlens greb som angivet i den kendetegnende del af krav 1.This object is achieved by pressing the side pieces of the clamped clamping arm with the grip of the pipe bracket as defined in the characterizing part of claim 1.

Ved en udførelsesform for opfindelsen består håndbeskyt-35 telsesgrebet af en beskyttelsesbøjle og en holdedel, der til sammen danner en parallel trapezformet profil, idet holdedelen har et U-formet tværsnit og med sidestykkerneIn one embodiment of the invention, the hand protection grip consists of a protective bracket and a holding member which together form a parallel trapezoidal profile, the holding portion having a U-shaped cross section and with the side pieces.

DK 160137 BDK 160137 B

2 omgiver grebet således, at den strækker sig et bestemt stykke over grebets midterlinie.2 surrounds the handle so that it extends a certain distance over the center line of the handle.

For at forbedre håndbeskyttelsesgrebets holdepunkt på 5 grebet yderligere er håndbeskyttelsesgrebet forsynet med to nedad rettede fremspring, der strækker sig på hver sin side af savklingen.To further improve the handguard grip of the 5 grip further, the handguard grip is provided with two downwardly directed projections extending on either side of the saw blade.

De ved opfindelsen opnåede fordele består særlig deri, at 10 håndbeskyttelsesgrebet sidder sikkert og fast på rørbøjlens greb, så at drejning eller forskydning ikke længere er mulig, hvorved der sikres fuld beskyttelse af hånden, der fører saven.In particular, the advantages of the invention consist in the fact that the handguard grip is securely and firmly attached to the grip of the pipe bracket, so that rotation or displacement is no longer possible, thereby ensuring full protection of the hand guiding the saw.

15 Opfindelsen forklares nærmere ved den følgende beskrivelse af en udførelsesform under henvisning til tegningen, hvor fig. 1 viser en rørbøjle-håndspændesav ifølge opfind-20 elsen, set fra siden, fig. 2 er en forstørret sideafbildning af den bageste del af den i fig. 1 viste sav, og 25 fig. 3- er snit langs linien A-A i fig. 2.The invention is explained in more detail by the following description of an embodiment with reference to the drawing, in which fig. 1 is a side elevational view of a pipe clamp hand clamping saw according to the invention; FIG. 2 is an enlarged side elevational view of the rear portion of FIG. 1, and FIG. 3 is a section along the line A-A in FIG. 2nd

Den i fig. 1 viste sav omfatter en rørbøjle 15, som består af et bøjet metalrør med to vinklede partier, som ligger i et fælles plan, og hvoraf det ene tjener som 30 greb. Disse partiers ender er fladtrykte, idet en spænde-arm 2 er bevægeligt anbragt ved den ene ende. Denne spændearm 2 er ved sin bageste ende forsynet med en holdeliste 3, der er bevægeligt fastgjort til spænde-armen. En lignende holdeliste 4 er fastgjort på rørbøj-35 lens 15 anden ende. Hver af disse holdelister 3, 4 har form som en krum metalplade og er forsynet med en stift 6 til fastgørelse af en savklinge 5. Den forreste holdelis-The FIG. 1 saw a pipe bracket 15 which consists of a bent metal tube with two angled portions lying in a common plane, one of which serves as a grip. The ends of these portions are flattened, with a clamping arm 2 being movably disposed at one end. This clamping arm 2 is provided at its rear end with a holding strip 3 movably attached to the clamping arm. A similar retaining strip 4 is attached to the other end of the stirrup bar 15. Each of these holding strips 3, 4 has the shape of a curved metal plate and is provided with a pin 6 for attaching a saw blade 5. The front holding strip

DK 160137 BDK 160137 B

3 te 4 er ved sin ene ende således fladtrykt, at den har en afstand mellem sine ben, der svarer til rørbøjlens 15 fladtrykte endeform. Den bageste holdeliste 3 er ligeledes fladtrykt, så afstanden mellem dens ben svarer til 5 tykkelsen af spændearmen 2, der er tilsvarende fladtrykt.3 te 4 is flattened at one end so that it has a distance between its legs corresponding to the flattened end shape of the tube bracket 15. The rear retaining strip 3 is also flattened so that the distance between its legs corresponds to the thickness of the clamping arm 2, which is similarly flattened.

Mellem den forreste holdeliste 4 og rørbøjlens 15 ende samt mellem den bageste holdeliste 3 og spændearmen 2 findes traditionelle nitteforbindelser.Traditional rivet connections are found between the front retaining strip 4 and the end of the pipe bracket 15 as well as between the rear retaining strip 3 and the clamping arm 2.

10 Ifølge opfindelsen er et håndbeskyttelsesgreb 7 anbragt ved grebet 1 ved rørbøjlens 15 bageste ende. Beskyttelsesgrebet 7 består af en beskyttelsesbøjle 8 og en holdedel 9, som er udformet ud i et med hinanden og til sammen danner en parallel trapezformet profil som vist i 15 fig. 1. Holdedelen 9 er U-formet i tværsnit og omfatter to sidestykker 10 og 11, der strækker sig over mere end halvdelen af omkredsen af rørbøjlens 15 periferiflade og ligger fjedrende an mod denne. Endvidere rækker sidestykkerne 10, 11 så langt bagud, at de skyder ind i spænde-20 armens 2 mod rørbøjlen 5 vendende konkave del. Herved presses sidestykkerne 10, 11 hårdere mod grebet 1, hvis beskyttelsesbøjlen 8 trykkes i retning af det træstykke 2, der skal saves i.10 According to the invention, a handguard handle 7 is arranged at the handle 1 at the rear end of the pipe bracket 15. The protective grip 7 consists of a protective bracket 8 and a holding member 9 which are formed integrally together and together form a parallel trapezoidal profile as shown in FIG. 1. The holding member 9 is U-shaped in cross-section and comprises two side pieces 10 and 11 which extend over more than half of the circumference of the peripheral surface of the pipe bracket 15 and resiliently abut it. Furthermore, the side pieces 10, 11 extend so far backward that they slide into the concave portion of the clamping arm 2 against the pipe bracket 5. Hereby the side pieces 10, 11 are pressed harder against the handle 1 if the protective bracket 8 is pressed in the direction of the piece of wood 2 to be cut.

25 For at hindre at håndbeskyttelsesgrebet 7 drejes til siden, når der optræder en tilsvarende kraft ved skråstilling af saven, er der ved håndbeskyttelsesgrebets 7 nedre side udformet to nedadrettede fremspring 13, 14, som strækker sig på hver sin side af savklingen 5 eller 30 holdelisten 3 og omgiver en del af denne.To prevent the handguard handle 7 from turning sideways when a corresponding force occurs when the saw is tilted, at the lower side of the handguard 7, two downwardly projecting projections 13, 14 are provided, which extend on either side of the saw blade 5 or 30 holding strip 3 and surrounding part of it.

Et håndbeskyttelsesgreb ifølge opfindelsen kan med fordel også anvendes på rørbøjle-håndspændesave med varierende snit. Det kan anbringes efter, at saven i øvrigt er fær-35 diggjort, og det kan også let udskiftes i tilfælde af beskadigelse eller ødelæggelse.A handguard grip according to the invention can advantageously also be used on tube clamp hand clamping saws of varying cuts. It can be placed after the saw is otherwise completed and it can also be easily replaced in the event of damage or damage.

Claims

1. Pipe clamp hand clamping saw with a clamping arm adjacent to the clamping lever at the tension of the saw blade and with an interchangeable, loosely arranged handgrip grip, formed in one and having side pieces partially surrounding the grip of the tube clamp, the clamped clamping arm rests against the handguard grip 10, characterized in that the side pieces (10, 11) of the clamped clamping arm are pressed against the grip (1) of the pipe bracket (15).

2. A stirrup hand clamping saw according to claim 1, characterized in that the hand guard handle (7) consists of a guard bar (8) and a holding part (9) which together form a parallel trapezoidal profile.

Pipe hanger hand clamping saw according to claim 2, characterized in that the holding part (9) has a U-shaped cross section and with the side pieces (10, 11) surround the handle (1) so that it extends a certain piece. above the center line of the handle (1). 1 2 3 4 5 6 35

Pipe hanger hand clamp saw according to any one of claims 2 to 3, characterized in that the hand guard 3 grip (7) is formed with two downwardly directed 4 springs (13, 14) extending on each side of 5 saw blade (5). 6