US2007137040A1PendingUtilityA1

Callouse plane

Assignee: MOZART AGPriority: Apr 7, 2004Filed: Mar 9, 2005Published: Jun 21, 2007
Est. expiryApr 7, 2024(expired)· nominal 20-yr term from priority
A61B 17/54
15
PatentIndex Score
0
Cited by
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References
0
Claims

Abstract

A callous plane 1 having a blade head 2 and a handle 3 is disclosed, where callous plane 1 has an underside facing the body surface of a user when in working position, and an upper side facing away from said underside, and where a holding device 4 with a lower holding part 7 and an upper holding part 9 is provided in the blade head 2, in which a blade 5 can be held in such a manner that its cutting edge 6 intended for use to shave off callous skin is located on the underside of callous plane 1. To provide a callous plane 1 that is safer and easier to handle, and less complex to manufacture, it is proposed that lower holding part 7 be connected to handle 3 and display an upward-pointing seat 8 for blade 5, and that upper holding part 9 hold blade 5 tightly in seat 8 with the help of a fixing device.

Claims

exact text as granted — not AI-modified
1 . Callous plane having a blade head and a handle, where the callous plane has an underside facing the body surface of a user when in working position, and an upper side facing away from said underside, and where a holding device with a lower holding part and an upper holding part is provided in the blade head, in which a blade can be held in such a manner that its cutting edge intended for use to shave off callous skin is located on the underside of the callous plane wherein the lower holding part is permanently connected to the handle and displays an upward-pointing seat for the blade, and in that the upper holding part holds the blade tightly in the seat with the help of a fixing device characterised in that the fixing device displays snap-in means for snap-fitting the upper holding part to the lower holding part.  
   
   
       2 . Callous plane according to  claim 1 , characterised in that the underside of the blade head transitions smoothly from the lower holding part into the underside of the handle.  
   
   
       3 . Callous plane according to  claim 1 , characterised in that the lower holding part covers the entire underside of the held blade, apart from a middle section of the cutting edge intended for use.  
   
   
       4 . Callous plane according to  claim 1 , characterised in that the blade head essentially covers the upper side of the held blade, apart from a middle section of the cutting edge intended for use.  
   
   
       5 . Callous plane according to  claim 1 , characterised in that the underside of the upper holding part and the upper side of the lower holding part display curved shapes running roughly parallel to each other, the neutral axis of which runs in a working direction of the callous plane, such that the held blade is located between the holding parts under bending stress.  
   
   
       6 . Callous plane according to  claim 1 , characterised in that the lowerholding part displays a blade opening, through which the cutting edge of the blade can be passed in such a way that at least a middle longitudinal section of the cutting edge projects beyond the edge of the blade opening on the underside of the lower holding part by a small distance perpendicular to the working direction.  
   
   
       7 . Callous plane according to  claim 6 , characterised in that the undersides of both holding parts are curved, where the bend radius of the underside of the lower holding part is smaller than the bend radius of the underside of the upper holding part, at least in the area of the blade opening.  
   
   
       8 . Callous plane according of  claim 1 , characterised in that the fixing device displays a guide device for inserting the blade into the seat, and for inserting the two holding parts into each other.  
   
   
       9 . Callous plane according to  claim 8 , characterised in that the guide device displays guide prongs that are located at the corners of the seat and extend upwards, where the held blade and the upper holding part laterally rest against the guide prongs.  
   
   
       10 . Callous plane according to  claim 1 , characterised in that the fixing device displays a tongue-and-groove guide, by means of which the upper holding part can be guided over the lower holding part.  
   
   
       11 . Callous plane according to  claim 10 , characterised in that the tongue-and-groove guide displays a guide rail and a guide groove with a dovetail-type cross-section.  
   
   
       12 . Callous plane according to  claim 1 , characterised in that a pressure hollow is provided on the free end of the blade head and on the upper side of the upper holding part.  
   
   
       13 . Callous plane according to  claim 1 , characterised in that a through-passage for collecting and ejecting shaved-off callous skin particles is provided in the upper holding part, where the through-passage is located above the blade opening when in working postition.  
   
   
       14 . Callous plane according to  claim 1 , characterised in that the handle displays a handle part at its free end and a connecting section at its end facing the blade head, where an eyehole leading from the upper side to the underside is let into the connecting section in order to give a view of the body surface of a user to be treated.  
   
   
       15 . Callous plane according to  claim 1 , characterised in that, for ergonomic adaptation, the handle part displays a section for the ball of the thumb with convex padded grips in its free end area and/or a section for the fingers with a finger recess on its end facing towards the connecting section.  
   
   
       16 . Callous plane according to  claim 15 , characterised in that the section for the fingers displays a rectangular cross-section shape with finger recesses provided on all sides.  
   
   
       17 . Callous plane according to  claim 16 , characterised in that the callous plane is made of plastic.  
   
   
       18 . canceled

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