WO1979000879A1

WO1979000879A1 - A trap,preferably for mice,rats and mink

Info

Publication number: WO1979000879A1
Application number: PCT/SE1979/000082
Authority: WO
Inventors: S Rydberg
Original assignee: S Rydberg
Priority date: 1978-04-04
Filing date: 1979-04-03
Publication date: 1979-11-01
Also published as: EP0015946A1

Abstract

A trap, preferably for mice, rats, voles and mink. It consists of two substantially rectangular plates (1, 2) of a resilient material, connected to each other along a hinge (3) at one of their short sides, a shorter plate (1) being provided with a first tongue (5) projecting from a short side (4) opposite to the hinge (3) and substantially in the plane of the plate (1), the other long plate (2) being provided at its end remote from the hinge (3) with a second tongue (8) bent under said plate (1), and with a slit (7) in the folding zone (6), the first tongue (5) being disposed for glidably passing through said slit, said bent tongue (8) tapering towards a first short, rectangular lip (9) bent up towards the shorter plate (1) and disposed such that when the long plate (2) is given a resilient and concave curvature in relation to the shorter plate (1), it passes in through an opening (10) made in the short plate (1) and is enabled to remain there by means of bait (12) placed between the first lip (9) and a second lip (11) upstanding from an edge remote from the hinge (3).

Description

A trap, preferably for mice, rats and mink.

The present invention relates to a trap, which is distinguished for great effectiveness and that it can easily be produced in large series to an extremely low price. The trap in accordance with the invention has been given the configuration and characterizing features apparent from the accompanying patent claims.

The invention is illustrated by the accompanying drawing, on which Fig. 1 is a perspective view of a trap in accordance with the invention, in a set condition,

Fig. 2 is a perspective view of the same trap in an unset condition,

Fig. 3 is a side view of the same trap in a set condition,

Fig. 4 is a plan view from below of the same trap in a set condition,

Fig. 5 is a side view of the same trap in an unset condition, and Fig. 6 is a plan view from below of the same trap in an unset condition.

Two substantially rectangular plates 1,2 of different lengths are disposed with the longer above the shorter one, and are attached to each other by means of a hinge 3 along one of their short sides. The shorter 1 of these two plates 1,2 is provided with a tongue 5 projecting from its short side 4 remote from the hinge 3, the tongue being bent away from the longer plate 2 such that it forms an angle of 150°-170°, preferably l60°, to the shorter plate 1. The long sides of the shorter plate 1 are provided with flanges 14 directed towards the long plate 2. At its free end, the long plate 2 is provided with a tongue 8, bent down under the shorter plate 1 and tapering towards a short, rectangular lip 9. In the folding zone, the long plate 2 is provided with a slit 7 in which the tongue 5 of the shorter plate 1 is glidably accommodated. The long sides of the long plate 2 are suitably provided with teeth 10 directed towards the shorter plate 1. The tongue 8 of the long plate 2 is bent in under the shorter plate 1 such that when the long plate 2 is given a concave, arcuate shape in relation to the shorter plate 1, with the tongue of the shorter plate 1 substantially wholly thrust out through the slit 7. said tongue 8 will lie substantially parallel to the underside of the shorter plate 1. The lip of the tongue 8 is bent in towards the shorter plate 1 such that it forms an angle of 85°-110° to the tongue 8 and such that it will pass in through a rectangular opening 10 made in the shorter plate 1, when the long plate 2 is given the concave, arcuate shape in relation to the shorter plate 1. From the side of this opening 10 nearest to the hinge 3, there is a second lip 11 bent up at an angle of 25°-45° to the shorter plate 1, and of a length such that its free end is situated at a distance of at least one fifth of the whole length of the previously-mentioned lip 9 from its free end and so close to the lip 9 that bait 12, placced between the two lips 9,11, is pressed against the other lip 11, thus preventing the bait 12 from gliding out of the opening 10. When a animal, attracted by the bait 12, thrusts its head towards the bait 12 and pulls-it away, the lip 11 glides out of the opening 10, the long plate 2 straightens out and, guided by the tongue 5, comes down with great impact over the neck of the animal and presses the former against the flange 14 of the shorter plate 1. It has found advantageous to form the shorter plate 1 wider than the long plate 2 such that this plate can pass between the flanges 14 of the shorter plate 1 when the long plate straightens out so that the flanges 14 act as shearing edges. It has further been found advantageous to make the flanges so high that they attain the same height as the upper edge of the bait 12, and to provide them with a V-shaped notch opposite the bait 12, this notch having a greatest width such that it corresponds to that of the necket of the animal. The edges of the notch will then be pressed with great force against the jugular vein of the animal and, if the blow has not already led to its death, stop the supply of blood to its brain which after a few seconds results in unconciousness and death.

Claims

1. A trap, preferably for mice, rats, voles and mink, characterized in that it consists of two substantially rectangular plates (1,2) of a resilient material, connected to each other along a hinge (3) at one of their short sides, the shorter plate (1) being provided with a first tongue (5) projecting from a short side (4) opposite to the hinge (3) and substantially in the plane of the plate (1), the other long plate (2) being provided at its end remot from the hinge (3) with a second tongue (8) bent und said plate (1), and with a slit (7) in the folding zone (6), the first tongue (5) being disposed for gl dably passing through said slit, said bent tongue (8 tapering towards a first short, rectangular lip (9) bent up towards the shorter plate (1) and disposed such that when the long plate (2) is given a resilie and concave curvature in relation to the shorter pla (1), it passes in through an opening (10) made in th short plate (1) and is enabled to remain there by me of bait (12) placed between .the first lip (9) and a second lip (11) upstanding from the edge (4) remote from the hinge (3) .

2. A trap as claimed in claim 1, characterized in that the long plate (2) is longer than the shorter plate such that in a set condition it forms an arc w a height great enough for an intended animal to put head under it and remove the bait (12).

3. A trap as claimed in claim 1, characterized in the long plate (2) is provided with teeth (13) along long edges and facing towards the shorter plate (1).

4. A trap as claimed in claim 1, characterized in the shorter plate (1) is provided .with flanges (14) its long sides and facing towards the long plate (2)

5. A trap as claimed in claim 1, characterized in the tongue (5) of the shorter plate (1) is slightly away from the long plate (2).

6. A trap as claimed in claim 5, characterized in that the tongue (5) forms an angle of 150°-170° to the plate (1).

7. A trap as claimed in claim 6, characterized in that the tongue [ 5 ) forms an angle of 160 to the plate (1).

8. A trap as claimed in claim 1, characterized in that the first lip (9) forms an angle of 85°-110° to the second bent tongue (8).

9. A trap as claimed in claim 1, characterized in that the second lip (11) forms an angle of 25°-45° to the shorter plate (1).

10. A trap as claimed in claim 9, characterized in that the second lip (11) is disposed to lie against a bait (12) placed between, the two lips (9,11), in the set state of the trap, and at a distance from the free end of the first lip (9) corresponding to at least one fifth of the total length of the first lip (9).