FR2533850A1 - HAND FILE TOOL - Google Patents

Abstract

CUTTING TOOL 10 SIMILAR TO A FILE EQUIPPED WITH A MULTI-OPENING AND MULTI-TEETH 14 CUTTING BLADE, CURVED AT THE FAR AWAY FROM THE MAIN HANDLE 16 BUT ALMOST FLAT NEAR THE MAIN HANDLE 16. THE ENDS OF THE BLADE 14 CAN BE INTERVERTED TO ALLOW EXERCISE ON THE HANDLE 16 EITHER A PUSHING ACTION - WHICH IS BEST FOR THE FLAT PART OF THE BLADE 14 - OR A TENSIONING ACTION - WHAT IS BEST TO REMOVE A LOT OF MATERIAL USING THE CURVED PART OF THE BLADE 14.

Description

The invention relates to a cutting tool of a type

  comprising a body provided with an elongated cutting blade

  flexible and flexible with multiple teeth and multiple

  openings acting in one direction only.

  According to the invention, a cutting tool is proposed comprising a body provided with an elongated and flexible cutting blade with multiple teeth acting in one direction, the body having a handle in the vicinity of

  one end of the blade and being designed p On commu-

  nick a non-uniform curvature to the blade so that the curvature of the blade as seen from

  side is maximum in a terminal region, the ex-

  blade hoppers that can be interchanged for

  allow, as desired, to cut by pushing or cutting

per pulling.

  Preferably, the mentioned end region is distant from the handle and preferably also, the blade

has multiple openings.

  The invention will be described by way of example with regard to the appended drawings in which

  FIG. 1 is a side view of a cutting tool

  eg realizing the invention, FIG. 2 a view from the front of the body of the cutting tool of FIG. 1,

  Figure 3 a rear view of the body of the

  the cutting edge of Figures 1 and 2, Figure 4 a longitudinal section of the cutting tool, corresponding to Figure 1, Figure 5 an upper axial view of the cutting tool of Figures 1 to 4 and Figure 6 a lower axial view of the tool

section of Figures 1 to 5.

  The cutting tool 10 represented by the drawings includes

  takes a body 12 of molded plastic, provided with an elongated and flexible cutting blade 14 of hardened steel, with multiple teeth and multiple openings

  (one opening per tooth), acting in one direction.

  The body 12 has a handle 16 adjacent to one end 18 of the blade 14 and a smaller auxiliary handle 20 adjacent to the other end 22 of

blade 14.

  As seen in Figure 4, where the extremi-

  tees of the blade 14 are inverted relative to the position of Figure 1, as indicated above, the blade 14 is provided with two hooks 24 and 26 which

  are integral The hook located at the end adjja-

  cente to the auxiliary handle 20 (as shown in Figure 4, hook 24) fits a part 28 of the body 12 The other hook (hook 26 in Figure 4) fits a part of a device tension mounted on the body 12 More particularly, the hook 26 is applied to a plastic nut 32 in which engages a threaded bolt 36 whose domed head 38 forming a button bears against a part 40 of the body 12 By manually tightening the bolt 36 by means of the button 38, the blade 14 can be stretched to adapt its shape to that of the sides 44

body 12.

  Over about two thirds of the length of the blade 14, as close as possible to the handle 16, the sides 44 of the body only maintain the blade 14 slightly curved, almost planar, as can be seen in FIGS. 1 to 4 However, over approximately a third of the length of the blade 14, near the handle

  auxiliary 20, the blade 14 undergoes a curvature

  vexed (relative to its working surface) When the cutting tool 10 is used normally, the blade 14 is arranged as shown in FIG. 1,

  so as to perform a cutting action when the

  ger pushes on the handle 16 (the handle 20 used only for guiding) This is the best way

  to use almost two-thirds of the length.

  blade blade 14, closer to the handle 16.

  However, if you want to remove a large amount

  bearing material by means of the tool, the best mode of use is that where the ends of the blade 14 are inverted as shown in FIG. 4 and where a pulling action is exerted on the handle 16 (the handle 20 again serving only

  guidance), by acting, on the part (not shown

  tee) with the curved third of the blade adjacent to the

auxiliary handle 20 -

  In other words, we get the best results.

  for maximum material removal by pulling on the handle 16 and using the curved rear third of the length of the blade 14 for cutting, as shown in FIG. 4 However, if one does not wish to

  a significant removal of material, but if we de-

  To achieve a reasonably flat surface using the tool, the blade 14 must be turned over in the position in FIG. 1, so that the cut is made while the auxiliary handle 20 is at the front in the stroke. cutting and the main handle 16 at the rear, mainly using a pushing action Since the blade 14 is flexible,

  the sides 44 of the body determine which part

  tie of the blade is curved (i.e., the part ad-

  adjacent to the end 18 of the blade in Figure 4 and the part adjacent to the end 22 of the blade in Figure 1), and which part of the blade is planar (the part adjacent to the end 22 in the figure 4 and

  the part adjacent to the end 18 in FIG. 1).

  The blade 14 can advantageously be of a type

  sold by the plaintiff under the brand "Surform".

Claims (1)

FOR SALE 1 Cutting tool (10) comprising a body (12) provided with an elongated and flexible cutting blade (14) with multiple teeth acting in one direction, the body (12) having a handle (16) in the vicinity of one end (18, 22) of the blade (14), characterized in that the body (12) is designed to communicate a non-uniform curvature to the blade (14) as strong as the curvature of the blade (14) such that it is read from the side is maximum in a terminal region, the ends of the blade (14) being able to be inverted to allow, as desired, to cut by pushing or to cut by pulling. 2 Cutting tool according to claim 1, characterized in that the blade (14) is stretched longitudinally by tensioning means (28,30) applying to opposite ends (18, 22, 24, 26 ) of the blade (14) and that, as a result, it is pulled against a part (44) of the body (12) so as to match the curvature. 3 Cutting tool according to one of claims 1 and 2, characterized in that said end region is opposite the handle (16). 4 Cutting tool according to one of claims 1 to 3, characterized in that the body (12) comprises another handle (20) adjacent to the end (22, 18) of the blade which is opposite the end (18, 22) to which the first mentioned handle (16) is adjacent. Cutting tool according to one of claims 1 to 4, characterized in that the sides (44) of the body (12) define the curvature of the blade (14) along its length. 6 Cutting tool according to one of claims   1 to 5, characterized in that the blade (14) is multi- ples openings.