US3432975A - Sanding tool - Google Patents

Description

SANDING TOOL Sheet Filed Sept. 26, 1966 r M r a P E W :m

INVENTOR.

F. E. PARKER SANDING TOOL March 18, 1969 Sheet Filed Sept. 26, 1966 Fig. 3

Fig. 4

Fafe E. Parker INVENTOR.

Unite fates 3,4325% SANDING T001, Fate E. Parker, 2531 (Zhestnut St, San Angelo, Tex. 769M Filed Sept. 26, 1966, Ser. No. 581,947 US. Cl. 51392 Int. Cl. B24d 15/00, 17/00 9 Claims ABSTRACT OF THE DISCLOSURE The present invention relates to a sanding tool and more particularly to a hand operated sanding tool particularly suited for performing a multitude of sanding operations normally encountered in the building trades.

Numerous hand operated sanding tools have been proposed heretofore for the mounting of sandpaper or other abrasive coated sheets so as to provide a means of maintaining the sandpaper planar against a supporting backing such as when sanding the planar surfaces of walls, ceilings, furniture, etc. Unfortunately, most hand operated sanding tools proposed heretofore are only suitable for utilization in the performance of a limited number of sanding operations inasmuch as their construction does not render them conducive to utilization for the performance of such diverse sanding operations as performed on dry wall sea-ms, inside wall corners, limited spaces between door frames and inside wall corners, etc. Accordingly, a need still exists for a hand operated sanding tool characterized by a construction which renders the tool suitable for the performance of a multitude of different sanding operations.

It is therefore a primary object of the present invention to provide a novel hand operated sanding tool upon which a sheet of sandpaper or the like may be readily and quickly secured so that the tool can be readily used on both wide and narrow surfaces.

Another object of the present invention is to provide a hand operated sanding tool having a body member of a generally trough-like configuration and including opposed upstanding integral walls, preferably of dissimilar heights, which tool is adapted to clampingly retain a sheet of sandpaper or the like and thus provide a hand operated sanding tool characterized by sanding surfaces of varying area.

A further object of the present invention is to provide a hand operated sanding tool of the aforementioned type wherein there is provided a novel means of clampingly securing a sheet of abrasive papers thereto by means of a plurality of clamps pivotally secured to the body of a sanding tool.

Still another object of the present invention is to provide a novel hand operated sanding tool wherein the clamping means utilized to secure the sandpaper to the body of the sanding tool has an inwardly struck portion which coacts with an aperture in the body of the sanding tool to grippingly engage a sheet of sandpaper by rneans of the inwardly struck portion of the clamp means urging the underlying portion of the sandpaper sheet downwardly into the aforementioned aperture.

Still another object of the present invention is to provide a novel hand operated sanding tool of the aforementioned type wherein the handle is constructed to facilitate utilizing sanding surfaces on the tool which are at right angles to as well as parallel to the general plane of the handle.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIGURE 1 is a perspective view in an exemplary embodiment of the hand operated sanding tool constructed in accordance with the principles of the present invention;

FIGURE 2 is a longitudinal vertical sectional view of the hand operated sanding tool of FIGURE 1 taken substautially along the plane of the line 22 of FIGURE 1;

FIGURE 3 is a transverse vertical sectional view of the sanding tool taken substantially along the plane of the line 33 of FIGURE 2;

FIGURE 4 is an enlarged fragmentary vertical sectional view taken substantially along the plane of the line 4-4 of FIGURE 3 and showing certain details of the clip fastener means utilized to secure an abrasive coated sheet to the sanding tool;

FIGURE 5 is an enlarged fragmentary portion of the fastener of FIGURE 4 taken substantially on the plane of the line 55 of FIGURE 4 and further showing the manner in which the body of the sanding tool may be apertured so as to assist in frictionally retaining abrasive coated paper on the tool;

FIGURE 6 is an enlarged perspective view of the resilient clip fastener preferably utilized in the present invention; and

FIGURE 7 is a partially exploded fragmentary perspective view of the exemplary embodiment of the sanding tool illustrated wherein the handle and sheet of abrasive paper retained on the tool has been removed so as to more clearly show certain details of the tool.

Referring now to the drawings and particularly FIG- URES l and 7 it will be seen that the exemplary embodiment of the sanding tool 10 includes a body member indicated generally at 12 having a base portion 14 characterized by a substantially planar bottom surface 15. The body member 12 which is preferably generally elongated further includes opposed integral upwardly extending walls 16 and 18 respectively. The walls 16 and 18 are preferably of different height so as to facilitate utilization of the hand operated sanding tool 10, in a manner to be described hereinafter, for the performance of a multitude of different sanding operations on generally planar surfaces of substantially different areas. As seen best in FIGURE 7, the upwardly extending walls 16 and 18 are provided with inwardly turned integral flanges 20 and 22, respectively.

As best seen in FIGURES 1 and 7, the body member 12 defines an elongated trough indicated generally at 24 within which there is secured a handle means indicated generally at 26 including a handle 28 formed of metal, wood, plastic or the like and secured by means of suitable fasteners such as screws, bolts, rivets 29 to truncated triangular side brackets 30* and 32 similarly formed of metal, wood, plastic, etc. The side brackets 30 and 32 are in turn rigidly secured to the body member 12, as seen best in FIGURE 3, by means of suitable fasteners such as screws 31 which pass through suitable apertures 33 provided in the upstanding walls 16 and 18 contiguous thereto.

As seen best in FIGURES 3-6 the hand operated sanding tool 10 includes a clip fastener means indicated generally at 34 which includes a generally elongated relatively rigid resilient clip- 36 preferably formed of spring steel or the like. As seen best in FIGURE 6, the resilient clip 36 is provided with an aperture 37 adjacent one end and adjacent the opposite end the clip 36 is characterized by a portion 38 bent back upon the body of the clip 36 so as to define a narrow throat indicated at 39. Furthermore, as seen best in FIGURES 4 and 5 the portion 38 of the clip 36 is preferably provided with an inwardly struck dimple 49. It will be seen in FIGURE 4, which view is exemplary of the mounting of all the resilient clips 36, it will be seen that the clips 36 are pivotally secured to their associated flange portions 20 and 22 by means of a rivet, bolt, etc., 4 2. As seen best in FIGURES 4 and 5 when the portion 38 of clip 36 is straddling the associated flange portions 20 or 22 the struck in portion 46 projects downwardly into an aperture indicated at 44.

To secure the sheet of abrasively coated material 46 such as sandpaper, emery cloth or the like, to the body 12 of the sanding tool it is merely necessary to pivot the several clip fastener means 34 away from their associated flanges and 22 so as to permit placement of a suitable sized sheet of the abrasive material 46 over the exterior of the body 12 and contiguous with the flanges 2G and 22 so as to permit securing the abrasive paper 46 to the sanding tool 10 by pivoting the clip fastener means 34 into straddling relationship with regard to the flanges 20 and 22 with the abrasive paper frictionally retained therebetween and as further seen in FIGURES 4 and 5 preferably pressed into the aperture 44 by the struck in portion 40 of the resilient clip 36 so as to substantially increase the friction on the abrasive sheet 46 thus assuring that the abrasive sheet 46 will be retained until such time as it is released by pivoting the resilient clip 36 away from its associated flange 20 or 22.

From the foregoing it will be seen that there has been provided a hand operated sanding tool which is provided with a simple etflcient means of retaining a sheet of abrasive coated paper and furthermore provides a plurality of sanding surfaces of varying areas so as to facilitate utilization of the sanding tool 10 for numerous sanding operations such as the sanding of dry wall seams, door facings and corners, inside and outside wall corners, window facings, for example, without the necessity of having to resort to the utilization of several sanding tools to perform the aforementioned sanding operations.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A hand operated sanding tool adapted to releasably retain abrasive coated sheet material comprising a body member including a generally elongated rectangular base portion having a generally flat bottom surface, a pair of spaced upwardly extending opposite wall portions integral with said base portion, said pair of wall portions coextending with the longer sides of said base normal to the plane of the bottom surface of said base portion, said wall portions being of different heights, said upwardly extending wall portions terminating in inwardly turned flanges, a handle means secured in and projecting upwardly from the trough defined by said base portion and said upstanding walls, and clip fastener means operatively associated with said inturned flanges for releasably retaining a sheet of abrasive coated material on the exterior of said body member.

2. A hand operated sanding tool adapted to releasably retain abrasive coated sheet material comprising a body member including a base portion having a generally flat bottom surface, a pair of spaced upwardly extending opposite Wall portions integral with said base portion, said upwardly extending Wall portions terminating in inwardly turned flanges, a handle means secured in and projecting upwardly from the trough defined by said base portion and said upstanding walls, and clip fastener means operatively associated with said inturned flanges for releasably retaining a sheet of abrasive coated material on the exterior of said body member, said clip fastener means including a plurality of relatively rigid resilient clips pivotally carried by said inturned flanges whereby said clips may be pivoted in and out of fastening position.

3. The combination of claim 2 wherein said clips each comprise generally elongated members having one end pivotally secured to said flange, the other end of said clip having a portion bent back upon itself and adapted to straddle its associated flange whereby said clip will retain a sheet of sandpaper placed between said clip and said associated flange.

4. The combination of claim 3 wherein said bent back portion of said clip includes a struck in portion which coacts with a suitably positioned aperture in said associated flange whereby a portion of an abrasive coated sheet to be retained is forced into the aperture in the flange by the struck in portion of the clip so as to increase the frictional forces acting to retain the sheet material on the body of the sanding tool.

5. A hand operated sanding tool adapted to releasably retain abrasive coated sheet material comprising a generally elongated body member including a base portion having a generally flat bottom surface, a pair of spaced upwardly extending opposite wall portions integral with said base portion, said wall portions being of lesser height than the width of said base portion and of substantially different height than each other, said upwardly extending wall portions terminating in inwardly turned flanges, a handle means secured in and projecting upwardly from the trough defined by said base and wall portions, and clip fastener means operatively associated with said inturned flanges for releasably retaining a sheet of abrasive coated material on the exterior of said body member.

6. The combination of claim 5 wherein said handle means includes a pair of opposed brackets transversely disposed between and secured in spaced apart relationship to said opposite wall portions and a generally arcuate handle having its end portions secured to said brackets.

7. The combination of claim 5 wherein said clip fastener means includes a plurality of relatively rigid resilient clips pivotally carried by said inturned flanges whereby said clips may be pivoted in and out of fastening position.

8. The combination of claim 5 wherein said clips each comprise generally elongated members having one end pivotally secured to said flange, the other end of said clip having a portion bent back upon itself and adapted to straddle its associated flange whereby said clip will retain a sheet of sandpaper placed between said clip and said associated flange.

9. The combination of claim 5 wherein said bent back portion of said clip includes a struck in portion which coacts with a suitably positioned aperture in said associated flange whereby a portion of an abrasive coated sheet to be retained is forced into the aperture in the flange by the struck in portion of the clip so as to increase the frictional forces acting to retain the sheet material 0n the body of the sanding tool.

References Cited UNITED STATES PATENTS 1,183,444 5/1916 Fisk i 51383 1,544,368 6/1925 Brennan 51-392 X 1,699,840 1/1929 Goldblatt 15235.4

OTHEL M. SIMPSON, Primary Examiner.

US. Cl. X.R. 51383

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