Device for cutting pieces from a substantially cylindrical article

• US 4,837,931 A
• Filed: 06/26/1987
• Issued: 06/13/1989
• Est. Priority Date: 06/26/1986
• Status: Expired due to Fees

• Current Assignee: Martor-Argentax E.H. Beermann KG
• Original Assignee: Martor-Argentax E.H. Beermann KG
• Inventors: Beermann, Ewald H.
• Primary Examiner(s): Watts, Douglas D.
• Application Number:
  US07/067,593
• Time in Patent Office: 718 Days
• Field of Search: 30/111-113, 30/93, 30/278, 30/333, 30/337, 30/92
• US Class Current: 30/92
• CPC Class Codes: A24F 13/24 Cigar cutters, slitters, or perforators, e.g. combined with lighters

Abstract

The apparatus for cutting off a substantially cylindrical piece from a cylindrical object comprises a handle with a gap like cavity in which a knife blade carried by a blade holder is pivotable. The blade holder is substantially U-shape. In the side arms of the U-shape blade holder recesses are provided which form supporting surfaces for the end regions of the knife blade. Advantageously a U-shape cover is provided with projecting pins which holds the knife blade in place in the blade holder. A transverse pivot passage in the blade holder outside of the blade contour with a radial slot extending therefrom can provide a catch opening for a pivot bolt anchored in the handle.

Claims

1. In a device for cutting a piece from a generally cylindrical article, the device comprising a handle having a gap-like cavity in which a knife blade carried in a blade holder is pivotable, the improvement wherein

said blade holder is substantially U-shaped and has arms provided with a plurality of supporting surfaces for said knife blade,

said supporting surfaces are formed by a plurality of recesses in said blade holder and are overlapped by a cover,

said blade holder is provided with a transverse pivot passage beyond the contour of said knife blade and traversed by a pivot bolt anchored in said handle, and

said transverse pivot passage of said blade holder is formed at an enlarged inner end of a slot extending straight from the pivot passage to the periphery of said blade holder, said blade holder being engageable in a snap fit at the passage on said pivot bolt by sliding of same along said slot.

2. The improvement according to claim 1 wherein the slot is inclined with respect to a longitudinal axis of said blade holder.

5. The improvement defined in claim 1 wherein said blade holder has an arcuate end surface with a radius of curvature centered on said transverse pivot passage and increasing from a front side of said blade holder at which a cutting edge of said knife blade is disposed toward a rear side of said blade holder opposite said front side.

6. The improvement defined in claim 5 wherein said cavity is formed with a rolling edge at a distance from a center of said transverse pivot passage which is slightly greater than the largest radius of curvature of said arcuate surface, said arcuate surface engaging said rolling edge as said blade holder is inserted into said cavity to drive said pin from said radial slot into said transverse pivot passage.

7. The improvement defined in claim 6 wherein said radial slot converges toward said transverse pivot passage.

3. In a device for cutting a piece from a generally cylindrical article, the device comprising a handle having a gap-like cavity in which a knife blade carried in a blade holder is pivotable, the improvement wherein

said blade holder is substantially U-shaped and has arms provided with a plurality of supporting surfaces for said knife blade,

said supporting surfaces are formed by a plurality of recesses in said blade holder and are overlapped by a cover,

said handle has a transverse opening for receipt of said pieces to be cut in a pivoting range of said knife blade, and

said transverse opening is formed by two overlapping generally cylindrical passages through said handle whose axes intersect approximately in the plane of said knife blade at an angle of about 45°

to each other.

4. In a device for cutting a piece from a generally cylindrical article, the device comprising a handle having a gap-like cavity in which a knife blade carried in a blade holder is pivotable, the improvement wherein

said blade holder is substantially U-shaped and has arms provided with a plurality of supporting surfaces for said knife blade,

said supporting surfaces are formed by a plurality of recesses in said blade holder and are overlapped by a cover,

said handle has a transverse opening for receipt of said pieces to be cut in a pivoting range of said knife blade, and

said transverse opening of said handle has an inwardly directed bulge extended from each half of said handle on the outer circumference of said transverse opening.

8. A device for cutting pieces off a cylindrical article, the device comprising:

a knife blade;

a substantially U-shape blade holder for said knife blade and having arms provided with a plurality of supporting surfaces for said knife blade and also with a plurality of holder holes corresponding to blade holes provided in the end regions of said knife blade;

a handle formed by a pair of similar halves forming a gap-like cavity in which said knife blade in said blade holder is pivotable, said blade holder being provided with a transverse pivot passage beyond the contour of said knife blade which is traversed by a pivot bolt anchored in said handle and connectable by a radial slot with the periphery of said blade holder, said radial slot being inclined with respect to the longitudinal axis of said blade holder;

a cover for said knife blade overlapping said supporting surfaces of said blade holder and provided with a plurality of projecting pins which are engageable in said holder holes of said blade holder and through said blade holes of said knife blade, the handle being formed with a transverse opening for receipt of said pieces to be cut in the pivoting range of said knife blade and comprising two overlapping generally cylindrical passages through said handle whose axes intersect approximately in the plane of said knife blade at an angle of about 45°

with respect to each other; and

an inwardly directed bulge protruding from each half of said handle on the outer circumference of said transverse opening.

9. A knife for cutting a substantially cylindrical element, the knife comprising:

a generally flat elongated handle formed internally with a hollow;

a blade holder receivable in said hollow and swingably mounted on said handle so as to be fully enclosed by said handle in an operative position and to extend partly from said handle in an inoperative position, said blade holder having a substantially flat U-shape with a pair of arms flanking an opening in said blade holder, said arms each being formed with a supporting surface parallel to a plane of swinging movement of said holder; and

a flat blade fixed on said holder, resting on said supporting surfaces formed on said arms, and having a cutting edge extending between said arms across and exposed in said opening in said operative position of said holder to enable said blade to sever a piece from said cylindrical element upon insertion of said cylindrical element between said edge and said handle in said operative position, said blade holder further having an arcuate end surface with a radius of curvature centered on said transverse pivot passage and increasing from a front side of said blade holder at which the cutting edge of said knife blade is disposed toward a rear side of said blade holder opposite said front side, the hollow being dimensioned to engage the arcuate surface at the rear holder side in the operative position of the holder.

10. The knife defined in claim 9 wherein each of said arms is formed with a recess having a bottom defining the respective supporting surface, said blade being received in said recesses and said blade holder being formed with a cover member conforming in shape to said recesses, received in said recesses and overlying said blade.