SE519396C2

SE519396C2 - Egg protection for hand saws

Info

Publication number: SE519396C2
Application number: SE9902921A
Authority: SE
Inventors: Eckhard Eriksson
Original assignee: Kapman Ab
Priority date: 1999-08-16
Filing date: 1999-08-16
Publication date: 2003-02-25
Also published as: DE60032424D1; ATE348693T1; EP1077120A3; EP1077120A2; JP4545900B2; EP1077120B1; JP2001087940A; DE60032424T2; SE9902921L; SE9902921D0

Abstract

Edge protector for handsaws, comprising a tooth-protecting part with unsymmetrical U-sectipon and with the same curvature as the toothed edge of the saw blade, where the base part (16) is extended in the first end corresponding to the front end of the saw and provided with a suspension part (18) and a peg (19) with a head (22) which can be inserted through a hole (14) in the saw blade at least in a predetermined relative position of the saw and the edge protector, and where the tooth-protecting part near the other end is provided with a closure (21) which can prevent relative motion between the saw blade and the edge protector when the toothed edge of the saw blade is entered into the U-section. <IMAGE>

Description

25 30 519 396 ;...~> 2 lnformationsdelen är utformad för att bära information om varumärke, katalognummer och användningssätt, ingjutet i materialet eller i form av en etikett. Stiftet (19) är utfört med cylindriskt skaft av en längd som är större än sågbladets tjocklek, och med ett huvud (22) som kan föras genom hålet (14) i sågbladet när dettas läge i förhållande till eggskyddet enligt figur 1 medger lösgörning, men inte kan föras genom hålet när sågbladets läge enligt figur 2 fäster sågbladet till eggskyddet. Exempel på utföranden av hålet ( 14) och huvudet (22) kan vara ett nyckelhålsforrnat hål och ett cirkulärt huvud, varvid inga krav ställs på vinkelnoggrannheten, men en längsförskjutning krävs för att fästa sågbladet till eggskyddet. Ett annat exempel är ett avlångt jämnbrett hål (14) och ett avlångt huvud (22), varvid den inbördes vinkeln dock måste vara bestämd vid lösgörning. 25 30 519 396; ... ~> 2 The information part is designed to carry information about trademark, catalog number and method of use, embedded in the material or in the form of a label. The pin (19) is made with a cylindrical shaft of a length greater than the thickness of the saw blade, and with a head (22) which can be passed through the hole (14) in the saw blade when its position in relation to the edge protection according to Figure 1 allows loosening, but cannot be passed through the hole when the position of the saw blade according to figure 2 attaches the saw blade to the edge guard. Examples of embodiments of the hole (14) and the head (22) may be a keyhole-shaped hole and a circular head, no requirements being placed on the angular accuracy, but a longitudinal displacement is required to attach the saw blade to the edge guard. Another example is an elongated evenly wide hole (14) and an elongated head (22), the mutual angle, however, having to be determined when loosening.

Täckdelen kan utformas med ett urtag (20) genom vilket man kan observera tänderna om man har ﬂera sågblad med olika utförande av tänderna. I närheten av sågens handtag är eggskyddet utfört med en fästanordning (21) som på ett lösbart sätt fäster sågbladets bakre del till eggskyddet. Flera sådana fästanordningar är kända, exempelvis magneter eller fjädrande snäppanordningar motsvarande patentet SE 469 1 16 eller elastiskt stängbara omslutande byglar.The cover part can be designed with a recess (20) through which you can observe the teeth if you have ﬂ your saw blades with different designs of the teeth. In the vicinity of the handle of the saw, the edge guard is made with a fastening device (21) which securely attaches the rear part of the saw blade to the edge guard. Several such fastening devices are known, for example magnets or resilient snap devices corresponding to the patent SE 469 1 16 or elastically closable enclosing stirrups.

När eggskyddet skall monteras på en såg, håller man sågen och eggskyddet i vinkel mot varandra enligt figur l, och för stiftets huvud (22) genom hålet (14). Sågen vrids därefter kring stiftet (19), om så erfordras med en förskjutning nedåt, så att sågbladets tandade kant (12) förs in mellan basdelen (16) och täckdelen (15) av den tandskyddande delen.When the edge guard is to be mounted on a saw, hold the saw and the edge guard at an angle to each other according to figure 1, and for the head of the pin (22) through the hole (14). The saw is then rotated around the pin (19), if required with a downward displacement, so that the serrated edge (12) of the saw blade is inserted between the base part (16) and the cover part (15) of the tooth-protecting part.

När sågbladct vridits helt in till slutläget enligt figur 2, fästs det i detta läge genom fästanordningen (21). Sågen kan därefter hängas på en vägg, fästas i ett bälte eller läggas i en verktygslåda utan risk att sågens tänder skadas eller skadar andra föremål.When the saw blade has been turned completely into the end position according to Figure 2, it is fastened in this position by the fastening device (21). The saw can then be hung on a wall, fastened to a belt or placed in a toolbox without the risk of the saw's teeth being damaged or damaging other objects.

Om sågbladet har rak tandkant utföres eggskyddet rakt, och om tandkanten är krökt skall eggskyddet vara krökt. Upphängningsdelen (18) och informationsdelen (17) kan även vara utformade som separata eller löstagbara delar som fästs till stiftet (19). Härigenom kan eggskyddet anpassas till olika urtag i upphängningsdelen eller olika information Dessutom kan det erforderliga utrymmet för sågen med eggskyddet minskas.If the saw blade has a straight tooth edge, the edge guard is made straight, and if the tooth edge is curved, the edge guard must be curved. The suspension part (18) and the information part (17) can also be designed as separate or detachable parts which are attached to the pin (19). In this way, the edge guard can be adapted to different recesses in the suspension part or different information. In addition, the required space for the saw with the edge guard can be reduced.

Claims

10 15 20, ". I. = - 519 396 KEY

1. l. Edge protection for hand saws, where a tooth-protecting part has an asymmetrical U-section consisting of a wider base part (16) and a narrower cover part (15), characterized in that the base part in the end of the edge protection corresponding to the front end of the saw is longer than the cover part and comprises a pin (19) which can be inserted through a hole (14) in the saw blade, and that the edge guard near the other end is provided with a fastening device (21) which can prevent mutual movement between the edge guard and the saw when the saw is toothed. edge (12) is inserted between the parts of the U-section.

Edge guard according to claim 1, characterized in that the pin (19) has a head (22) which can only be passed through the hole (14) when the saw blade takes a predetermined angle in relation to the edge guard.

Edge protection according to claim 1, characterized in that the fastening device is a magnet.

4. Edge protection according to claim 1, characterized in that the fastening device is a resilient device which holds the saw blade through friction.

Edge guard according to claim 1, characterized in that the fastening device is a stirrup which can enclose a part of the saw blade.

Edge protection according to claim 1, characterized in that the base part (16) also comprises a suspension part (18) or an information part (18) or both.

Edge guard according to one of the preceding claims, characterized in that the edge guard part is curved with the same curvature as the serrated edge of the saw blade (12).