Utility knife

Abstract

A knife has a body forming a cavity, a blade with a cutting edge, and a holder forming a tool seat and movable relative to the knife body between an operating position with the tool seat in the cavity and a change position with the tool seat outside the cavity. An additional tool has at least two working parts and is provided with a holding part that can be fitted to the tool seat such that, in the operating position of the holder, one of the working parts is in a working position in which it projects from the body and can be used by a user while the other working part is in a stowed position inaccessible in the cavity and, in the change position, the tool is entirely outside the body and can be separated from the seat.

Claims

1. A knife comprising: a knife body forming a cavity; a blade with a cutting edge; a holder forming a tool seat and movable relative to the knife body between an operating position with the tool seat in the cavity and a change position with the tool seat outside the cavity; and a tool having at least two working parts and provided with a holding part that, in at least two different relative positions, can be fitted to the tool seat such that, in the operating position of the holder, one of the two working parts is fixable relative to the tool seat in a working position in which it projects from the body and can be used by a user while the other working part is in a stowed position inaccessible in the cavity and, in the change position, the tool is entirely outside the body and can be separated from the seat.

2. The knife in accordance with claim 1, wherein the tool is formed of sheet metal.

3. The knife in accordance with claim 1, wherein at least one of the working parts has at least one scoring edge.

4. The knife in accordance with claim 1, wherein the working parts of the tool are opposite one another and flank the holding part.

5. The knife in accordance with claim 1, wherein the holding part has a projection that fits complementarily with a recess of the seat.

6. The knife in accordance with claim 1, wherein the tool is held between a contact surface of the tool seat and a retaining surface of a cover of the body.

7. The knife in accordance with claim 1, wherein the holder also forms a blade seat holding the blade, and in the operating position the blade is held in the cavity with a portion of the cutting edge exposed and in the change position the blade is fully outside the cavity and separable from the holder.

8. The knife in accordance with claim 1, wherein the holding part of the tool is engageable in the two different relative positions in the seat in one of which one of the working parts is exposed in the operating position of the holder and in the other of which the other of the working parts is exposed in the operating position of the holder.

9. The knife in accordance with claim 8, wherein the working parts of the tool are the same shape.

10. A knife comprising: a knife body forming a cavity; a blade with a cutting edge; a holder movable relative to the knife body and forming a tool seat; a tool detachably held on the knife body, having at least two working parts, and provided with a holding part that, in at least two different relative positions, can be fitted to the tool seat such that either one of the working parts can be in a working position projecting from the body and can be used by a user while the other working part is in a stowed position inaccessible in the cavity; and a pivot on the knife body and carrying the holder such that the holder can pivot between an operating position and a change position.

11. The knife in accordance with claim 10, wherein the holding part of the tool is engageable in the two different relative positions in the seat in one of which one of the working parts is exposed in the operating position of the holder and in the other of which the other of the working parts is exposed in the operating position of the holder.

Description

BRIEF DESCRIPTION OF THE DRAWING

(1) Further advantages ensue from an embodiment illustrated in the schematic figures. Here:

(2) FIG. 1a is a side view of a first side of the knife, where a holder is in the working position,

(3) FIG. 1b, based on FIG. 1a, is a side view of a second side of the knife located opposite to the first side,

(4) FIG. 1c is a plan view of two tools with working parts of different designs.

(5) FIG. 2 is a side view in accordance with FIG. 1, where the holder is in a blade-change position, and a blade flap is located in an open position,

(6) FIG. 3a is a perspective a frontal view of the knife as shown in FIG. 2,

(7) FIG. 3b is in perspective a rearward view of the knife as shown in FIG. 2,

(8) FIG. 4 is a side view of the holder without the cover,

(9) FIG. 5 is a cross-sectional view along the line of cut V-V in FIG. 4,

(10) FIG. 6 is a detail view along section line VI of FIG. 5,

(11) FIG. 7 is a side view of the holder, together with the cover

(12) FIG. 8 is a cross-sectional view along section line VIII-VIII in FIG. 7, and

(13) FIG. 9 is a detail view along section line IX in FIG. 8.

SPECIFIC DESCRIPTION OF THE INVENTION

(14) The knife as a whole is indicated by the reference symbol 10 in the figures. Like reference symbols in the various figures indicate corresponding parts, even if small letters are added or omitted.

(15) A side view of the blade 10 is shown in FIG. 1a. The knife 10 comprises a knife body 11 with a grip 12, a front end 13 and a rear end 14. The knife 10 can be held at the grip 12.

(16) The knife body 11, has a recess 15 is provided in the form of a notch. The recess 15 can guide the material to be cut to the cutting edge 16 of a blade 17. The recess 15 limits access to the cutting edge 16, for example, such that the user's fingers cannot come into contact with the cutting edge 16 via the opening 15. The recess 15 is formed between opposite guide surfaces 34a and 34b of the front end 13, the guide surface 34b being associated with a hook-shaped extension 18 of the knife body 11. The cutting edge 16 is oriented such that it is recessed with respect to an outer surface 25 of the knife body 11.

(17) At the rear end 14, the blade body 11 is provided with a through hole 19 that can, for example, be used to hang up the knife 10. To avoid any slippage of the fingers, the housing 11 is provided on two opposite sides 20a and 20b and on the knife back 21 with textured formations 22a, 22b and 22c.

(18) On the front end 13, a working part 23a of a tool 24a projects beyond the outer surface 25 of the knife body 11. In the present embodiment the working part 23a has scoring edges 26a and 26b. The scoring edges 26a and 26b are set at an angle relative to a longitudinal axis m1 of the knife body 11. The tool 24a can be detached from the knife body 11 as will be explained below.

(19) In FIG. 1a, the side 20a of the knife 10 is shown. FIG. 1b shows the knife from a side 20b opposite the side 20a.

(20) In FIG. 1c, two tools 24a and 24b are shown that belong to a set of different tools 24. The tools 24a and 24b are provided with different scribing edges 26a, 26b, 26c, 26d, 26e, 26f, 26g, 26h. One of the tools 24a or 24b can be exchanged for the tool 24a in the knife body 11.

(21) The knife body 11 has a recess 33 that extends along a knife back 21 on the two opposite sides 20a and 20b of the knife body 11. The knife back 21 is provided with a slot-shaped opening 35 connected to a cavity 36 of the housing 11 (which can, for example, be seen in FIG. 3b). The opening 35 allows pivoting of a holder 27 through the cavity 36 into the operating position, and out of the cavity 36 into the blade-change position (see FIGS. 2 and 3). An actuating part 32, which in the operating position fits in the recess 33, is formed on an end 30 of the holder 27. FIG. 2 shows that the tool 24a is held on the holder 27. In accordance with an alternative embodiment, the tool 24a could also be held directly on the housing 11. The blade 17 is also mounted on the holder 27. The holder 27 is mounted on the knife body 11 such that it can pivot between the blade-change position illustrated in FIG. 2 and the operating position illustrated in FIG. 1. A pivot G1 is formed between the holder 27 and the knife body 11, with a pivot axis a1. The holder 27 can be pivoted relative to the knife body 11, about the pivot axis a1 in direction u1 and out of the operating position into the blade-change position. The holder 27 can be pivoted about the pivot axis a1 in the direction u2, out of the blade-change position into the operating position.

(22) Furthermore, an arm 29 can be seen in FIGS. 2 and 3 that is located on the end 30 of the holder 27 facing away from the pivot axis a1. The arm 29 is part of a latch 31. The arm 29 is provided with first latch formations that interact with second latch formations of the knife body 11. In the present embodiment, the arm 29 has a hook-shaped end that interacts with a mating structure, not shown, on the knife body 11.

(23) Furthermore, on the end 30 in FIG. 2 the actuating part 32 can be seen, by way of which the holder 29 can be moved between the operating position and the blade-change position. In the operating position, the holder 27 is arranged completely in the cavity 36, so that the holder 27 can be actuated only from the outside by way of the actuating part 32.

(24) As shown in FIG. 2, a first blade seat 37 for the blade 17 provided for cutting is formed on the holder 27. Adjacent to an upper edge 38 of the holder 27, a tool seat 39 is also formed for the tool 24a. Furthermore, in a rear section of the holder 27, at a spacing from the pivot axis a1, a seat 51 is formed for at least one replacement blade 50.

(25) As shown in FIG. 2, the blade 17 and the tool 24a are held between the holder 27 and a cover 28. The holder 27 and the cover 28 form a pivot G2 with a pivot axis a2, and can pivot about the pivot axis a2 between the open position shown in FIG. 2, and a closed position illustrated in FIG. 3. In the open position, the tool 24a can be removed from the tool seat 39 of the holder 27, and can be reinserted or replaced in the tool seat 39 in a different position relative to the holder 27.

(26) FIGS. 2 and 3a show that the tool is provided on a holding part 42 with a projection 40 in the form of a U-shaped crimp; this is provided for positive retention of the tool 24a in the tool seat 39. The projection 40 extends across the entire width of the tool 24a. The tool seat 39 has a recess 41 formed complementarily to the projection 40 of the holder 27.

(27) In addition, FIGS. 2 and 3a show that the tool has, in addition to the working part 23a, a further working part 23b. The parts 23a and 23b are separated from one another by the projection 40. The scoring edges 26a and 26b on the part 23a, and additional scoring edges 26c and 26d are on the part 23b of the tool 24a.

(28) In FIGS. 4, 5 and 6, the tool seat 39 is shown with the tool 24a mounted therein. The cover 28 is not shown in FIGS. 4, 5 and 6. As shown in FIG. 4, the section 23a projects beyond an outer surface 43 that, in the closed position of the holder 27, forms part of the outer surface 25, together with a section of the knife back 21. The section 23b bears fully against a surface 44 of the holder 27, such that in the closed position it is in the cavity 36.

(29) In FIG. 4, a line of cut is shown that extends along a longitudinal axis m1 of the tool 24a. FIG. 4 shows that a longitudinal axis m2 of the projection 40 extends approximately at right angles to the longitudinal axis m1. The scoring edges of at least one working part are, for example, opposite one another with respect to the longitudinal axis m1. In FIGS. 5 and 6 it can be seen that a lower surface 45 of the tool 24a bears against the surface 44, and that the projection 40 fits in the recess 41. Opposite side walls 46a and 46b of the recess 41 prevent movement of the tool 24a in the x1 and x2 parallel to the longitudinal axis m1, and opposite side walls 47a and 47b prevent movement of the tool 24a in directions y1 and y2 transverse to the longitudinal axis m1.

(30) FIG. 7 is based on FIG. 4, with the only difference being that in FIG. 7 the cover 28 is shown in the closed position. FIGS. 8 and 9 show that an outer surface 48 of the tool 24a bears against a retaining surface 49 of the cover 28. The parts 23a and 23b of the tool 24 are held between the retaining surface 49 and the surface 44 of the holder 27, so that movement in the directions z1 and z2 is prevented. In this manner, the tool 24a cannot move out of the tool seat 39.