SE123769C1

SE123769C1 -

Info

Publication number: SE123769C1
Authority: SE
Publication date: 1948-01-01

Description

Uppfinnare: E. A. A. Axelson. Inventor: E. A. A. Axelson.

Foreliggande uppfinning avser en slipmaskin t. ex. for slipning med sandpapper av spacklade ytor, som skola malas. Slipmaski- nen dr enligt uppfinningen fOrsedd med en eller flera par onivaxlaude frani och tillbaka medelst en drivanordning forskjutbara re for sliporgan, filar, skrapor eller dylikt. The present invention relates to a grinding machine e.g. for sanding with sandpaper of plastered surfaces, which must be ground. According to the invention, the grinding machine is provided with one or more pairs of onivaxlaude frani and back by means of a drive device displaceable re for grinding means, files, scrapers or the like.

Uppfinningen tydliggores a bifogade ritningar, ddr fig. 1 är en sidvy av maskinen och fig. 2 en andvy av densamma, varvid far tyd- lighetens skull en del bortskurits. Fig. 3 dr en langdsektion och fig. 1 en tvarsektion av maskinen. Fig. 5 visar en modifierad detalj. The invention is clarified in the accompanying drawings, in which Fig. 1 is a side view of the machine and Fig. 2 a side view thereof, the part being cut away for the sake of clarity. Fig. 3 shows a longitudinal section and Fig. 1 a cross section of the machine. Fig. 5 shows a modified detail.

Fig. 6 yisar en detalj av en modifierad utforingsform. Fig. 7 är en sektion efter linjen VII —VII i fig. 6. A ritningarna betecknar 1 en. Fig. 6 shows a detail of a modified embodiment. Fig. 7 is a section along the line VII -VII in Fig. 6. In the drawings, 1 denotes a.

Wig axel. Vid dermas mantel 2 ãr medelst skruvar 3 fast ett omholje 4, i vilket ar lagrad en axeltapp 5, som vid sin i omholjets 4 hire inskjutande ande dr forsedd med en snedstalld skiya 6 och vid sin andra and.e är samman- kopplad med den bojliga axelns 1 roterbara karna 7. Mot den sneda skivan anligga de med trissor 8 forsedda andarna 9 av tya stang- er 10, som aro mot verkan av fjadrar 11 anordnade forskjutbara i glidstyrningar 12 och vilkas andra a.n.dar 13 skjuta ut genom 14 i omholjet 4. Vid var och en av stangernas 10 utskjutande ande 13 är medelst en skruv 15 fast en hallare i form ay en konsol 16, vid vilken aro fasta medelst en skruvbult 19 och vingmutter 20 andplatar 17, 18, emel- lan vilka är insp'and en platremsa 21 med en belaggning 22 av gummisvamp. Pa denna gummisvamp är fastlimmat ett sandpapper 23. Nar den sneda skivan 6 bringas att rotera, sattas stangerna 10 och darmed hallarna 16 omvaxlande med yarandra i en fram- och atergaende rorelse, sá att sandpapperet 23 kan utfora en slipningsrorelse pa en yta, mot Tit-ken det anlagges. Wig axel. Attached to their casing 2 by means of screws 3 is a casing 4, in which is mounted a shaft pin 5, which at its spirit projecting into the casing of the casing 4 is provided with an inclined ski 6 and at its second end is connected to it. The rotatable shafts 7 of the flexible shaft 1 abut against the oblique disc the spirits 9 provided with pulleys 8 of ten rods 10, which are displaceable in sliding guides 12 arranged against the action of springs 11 and whose other spirits 13 project through 14 in the housing 4. At each of the projecting ends 13 of the rods 10 is fixed by means of a screw 15 a holder in the form of a bracket 16, to which are fixed by means of a screw bolt 19 and wing nut 20 end plates 17, 18, between which are insp. and a plate strip 21 with a coating 22 of rubber sponge. A sandpaper 23 is glued to this rubber sponge 23. When the oblique disc 6 is caused to rotate, the rods 10 and thus the holders 16 are alternately set with each other in a reciprocating motion, so that the sandpaper 23 can perform a grinding motion on a surface, towards Tit -know it is constructed.

Det är vasentligt for uppfinningen, att de bada stangernas rorelser alltid aro riktade at motsatta hall, sa att en utbalansering mellan de av dem uppburna sliporganen etc. sker samt att sliporganen rora sig sida vid sida och icke mot och Iran varandra. Darigenom blir det mojligt att aven slipa relatiyt sma. och smala ytor. Det är ocksa vasentligt, att sliporganen aro fastbara i 180° fran varan.dra avvikande vinkellagen. Genom att atdraga vingmuttern 20 ken man giva platen 21 en Prim krokning nedat eller uppat, sasom antydes med streckpricklinjer i fig. 1. It is essential to the invention that the movements of the two rods are always directed at opposite halls, so that a balancing between the grinding members etc. supported by them takes place and that the grinding members move side by side and not towards and against each other. This makes it possible to grind even relatively small ones. and narrow surfaces. It is also essential that the grinding means be fixed at 180 ° from each other deviating angular layers. By tightening the wing nut 20, the plate 21 can be given a prime hook down or up, as indicated by dash-dotted lines in Fig. 1.

Vid den i fig. 6 visade utfOringsformen aro fjadrarna 11 utbytta mot en bladfjader 25, som pa mitten är svangbart lagrad pa en tapp 26 och med sina andar 27, 28 ligga med spanning an mot anliggningsytor 29 pa stangern,a 10. In the embodiment shown in Fig. 6, the springs 11 are exchanged for a leaf spring 25, which in the middle is pivotally mounted on a pin 26 and with its ends 27, 28 lie with tension against abutment surfaces 29 on the rod, a 10.

Claims

Patontansprak:

A manually operable grinding machine, in which in a housing there is arranged a drive device flap for effecting a reciprocating movement of one or more pairs of holders for grinding means, files, scrapers or the like, characterized in that the drive device is constituted by a means t ex. a flexible shaft driven shaft journal with an inclined disc or cam disc, against which directly or by means of a pulley abuts one spirit of two or more rods, displaceable in sliding guides in the housing and with its other spirit supporting holders for grinding means or the like.

Grinding machine according to claim 1, characterized in that the rods are displaced against the action of one or more springs.

Grinding machine according to patent claim 2, characterized in that the spring consists of a leaf spring pivotally mounted in the middle, the spirits of which abut against the rods under tension.