US2575117A

US2575117A - Sanding device

Info

Publication number: US2575117A
Application number: US146177A
Authority: US
Inventors: Naken William
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-02-25
Filing date: 1950-02-25
Publication date: 1951-11-13
Anticipated expiration: 1968-11-13

Description

Nov. 13, 1951 w, NAKEN 2,575,117

' SANDING DEVICE Filed Feb. 25, 1950 INVENTOR.

ATTORNEYS.

Patented Nov. 13, 1951 if OFF CE- sesame Davies; p I I Naken, Chicago, 5 sa abma 25, 195a,.senai-no 1 errt invention relatesto sand-ins d ;i $$..-.8J l m r narucu1arla to devices. Ion-hol in bra e sheets such as sheets, Qif-sandpaperon thalike;

for-n fe tn sanding or polishing operations.

For sanding operations it is essential that the abrasive sheet be. heldfirmly. against slipping or wrinkling. It is also essential, that, the user-be able to hold and manipulate the, abrasive firmly. and comfortably. I

It is one ofthe objects'ofthe present inven tion toprovide a sanding device which will hold; an abrasivezsheet. firmly: and which is easy and comtenienttoihandlei. v

' Another obiectis t.o provide; at sanding: device includinga blade. to. holdg-an'ahrasive sheet an ahandielying at an. obtuse angle to thet la estill another obiect. .isto .ro ide a. sandin device "in. which. an. abrasive hfiQlei' l the blade by a fastening plate secured to the blade.

A further object is to provide an extremely simple and efiicient fastening means to secure the fastening plate to the blade.

The above and other objects and advantages of the invention will be more readily apparent when read in connection with the accompanying drawings, inwhich- Figure l is a perspective view of a sanding device embodying the invention;

Figure 2 is a view similar to Figure 1 showing the parts disassembled;

Figure 3 is a longitudinal central section through the device of Figure 1;

Figure 4 is a transverse section on the line 4-4 of Figure 3; and

Figure 5 is a view similar to Figure 4 showing an alternative construction.

The sanding device of the present invention consists essentially of a flat, relatively thin blade indicated generally at l and a handle ll rigidly secured to the blade and extending at an obtuse angle therefrom at one end. The blade is preferably made of sheetmetal and may be attached to a separate handle I I, as illustrated, or may have the handle formed integrally therewith, if desired. The blade in the form shown in Figures 1 to 4 includes a flat central portion and edge portions I2 which are turned up slightly at an obtuse angle to avoid sharp corners on the working surface of the blade. In its central part the blade carries an upstanding ear I3 which may be welded or riveted to the metal blade and which is formed with an opening l4 therethrough.

The blade is adapted to receive an abrasive sheet l5 such as sandpaper, emery paper, or the like and which is rectangular and of slightly reater h baa h e ies-1L lteblb he We 5 im l red. a wh te ail he al lees hfi as "'1 blade as in cat Q: a 1 esteadovertheus etd r b a eases J1. 9 the blade to the flat top surface thereof.

To. hold. the. abr sive-sheetlit-Piaget a te in plate- "53' is 'prorided; w

n ro blade.- andislish n .J. wardly tu-rneded es togenga e the'abrasiva sheet srrbfiantiafllhfltlififizlldi cr tic hoo ed portions of the blade... 'Taholld; fast nin plate, it is provided with a U-shaped opening 18 leaving a tongue l9 extending longitudinally of the plate and of a size to be received in the opening I4 of the ear l3.

To use the device an abrasive sheet maybe I) folded around the blade, as illustrated, and the fastening plate l6 may be placed over the blade and the sheet and slid longitudinally to move the finger [9 into the opening I l. This will securely hold the fastening plate over the blade, pressing the edges of the blade against the abrasive sheet to hold it tightly against shifting. The blade itself and the finger l9 will provide sufiicient resiiience to insure tight gripping of the abrasive sheet. With the sheet secured in place, the user may grip the handle H and may manipulate the device much in the manner of a file. The upwardly turned edge 12 will insure against sharp corners on the working surface which might bite into the work so that the device can be used easily and eifectively. Worn abrasive sheets can be replaced very easily and quickly and will be securely held against the blade when in use.

In the modification illustrated in Figure 5, the blade 10' is rolled upward at its edges, as indicated at 12' to provide rounded bead like edges. The fastening plate [6' is narrower than the space between the rolled edges I2 so that it will grip the abrasive sheet IS in the manner illustrated. Otherwise this construction is the sameas that of Figures 1 to 4 and function in exactly the same manner.

While two embodiments of the invention have been shown and described in detail herein,; it will be understood that they are illustrative only and. are not to be taken as a definition of the scopeof the invention, reference being had for this purpose to the appended claims.

What is claimed is:

1. A sanding device comprising a handle and a blade rigidly connected end to end and lying at an obtuse angle to each other, the blade being adapted to receive an abrasive sheet overlying the blade bottom with its edge portions folded over the edges ofthe blade and extending partially over thejtopof the blade, at fastening ear extending upward from the top of the blade, a fastening plate to overlie the top of the blade and grip the folded edges of the abrasive sheet, and an integral finger on the plate to engage the fastening ear upon sliding the plate relative to the blade to secure the plate to the blade;

2. A sanding device comprising a handle and a blade rigidly connected end to end and lying at an obtuse angle to each other, the blade being adapted to receive an abrasive sheet overlying the blade bottom with its edge portions folded over the edges of the blade and extending partially over the top of the blade, a fastening ear extending upward from the top of the blade and having an opening therein, a fastening plate to overlie the top of the blade and grip the folded edges of the abrasive sheet, the plate having an opening therein through which the ear may project, and anintegral tongue on the plate to fit into the opening in 'the ear to secure the plate to the blade.

- 3. A sanding device comprising a handle and a blade rigidly connected end to end and lying at an obtuse angle toeach other, the blade being adapted to receive an abrasive sheet overlying the blade bottom with its edge portions folded over the edges of the bladeand extending partially over the top of the blade, a fastening ear extending upward from the top of the blade and having an opening therein, a fastening plate to overlie the top of the blade and grip the folded edges of the abrasive sheet, the plate having a U-shaped opening therein to receive the ear and to define an integral tongue adapted to fit into the opening in the ear to secure the plate to the blade.

A sanding device comprising a handle and a relatively thin fiat blade lying at an obtuse angle to the handle, the handle being bent upward at its edges and adapted to receive an abrasive sheet overlying its bottom with its edge portions folded over the upwardly bent edges of the blade and extending partially over the top of the blade, a fastening plate to fit over the top of the blade between the upwardly bent edges to grip the folded edges of the abrasive sheet, an upwardly extending ear on the blade having an opening therein, the plate having an opening therein to receive the ear, and an integral tongue on the plate to fit into the opening in the ear to secure the plate to the blade.

' WILLIAM NAKEN.

REFERENCES CITED T o ng references are of record inthe file of this patent: 1

UNITED STATES PATENTS Thomas Mar. 31, 1936