Backstop (target)

• US 4,458,901 A
• Filed: 08/06/1982
• Issued: 07/10/1984
• Est. Priority Date: 08/06/1981
• Status: Expired due to Term

• Current Assignee: PF Acquisition Corporation
• Original Assignee: Allan S. Wojcinski
• Inventors: Wojcinski, Allan S.
• Primary Examiner(s): SHAPIRO, PAUL
• Application Number:
  US06/406,040
• Time in Patent Office: 704 Days
• Field of Search: 273/404, 273/410, 73/167
• US Class Current: 273/410
• CPC Class Codes: F41J 13/00 Bullet catchers

Abstract

A target back-stop behind a target area with lamellar rows of lamellae mounted at a distance from one another while the lamellae of a front row of lamellae form a predetermined angle α₁ with the normal of the target area, and while the lamellae of a rear row of lamellae form, in the opposite direction, a predetermined angle α₂ to the normal of the target area. A front end of one lamella of the rear row of lamellae borders on the rear end of one lamella of the front row of lamellae, so that channels will be formed that zigzag between the lamellae, and in which projectiles of widely varying caliber will shuttle to and fro and, in that way, will be braked.

Claims

1. Target back-stop in which, behind a target surface, separate devices for braking the projectiles, characterized by the fact that the devices consist of series of lamellae that are arranged behind one another, in such a way that the lamellae of the first series (row) of lamellae are inclined, by a predetermined angle (α

1) in one direction in relation to the normal of the target surface, and that the lamellae of the second row of lamellae are inclined at an angle (α

2) in the opposite direction in relation to the normal of the target surface, that the individual lamellae of the lamellae rows are placed at a distance to one another, and that the front end of one lamella each of the second row of lamellae abuts upon the rear end of one lamella each of the first row of lamellae, that zigzagged channels will be formed between the lamellae.

2. Target back-stop in accordance with claim 1, characterized by the fact that two rows of lamellae are provided.

3. Target back-stop in accordance with claim 2, characterized by the fact that the predetermined angle (α

1) between the lamellae of the first row of lamellae and the normal to the target surface and the predetermined angle (α

2) between the lamellae of the second row of lamellae and the normal to the target surface are of the same magnitude.

4. Target back-stop in accordance with claim 3, characterized by the fact that the angle (α

1) between the lamellae of the first row of lamellae and the normal to the target surface amount to from 20°

to 40°

.

5. Target back-stop in accordance with claim 4, characterized by the fact that the angle (α

1) between the lamellae of the first row of lamellae and the normal to the target surface amounts to about 25°

.

6. Target back-stop in accordance with claim 5, characterized by the fact that the angle (α

2) between the lamellae of the second row of lamellae and the normal to the target surface amounts to from 20°

to 40°

.

7. Target back-stop in accordance with claim 6, characterized by the fact that the angle (α

2) between the lamellae of the second row of lamellae and the normal to the target surface amount to about 25°

.

8. Target back-stop in accordance with claim 7, characterized by the fact that the individual lamellae of the row of lamellae are suspended in each case so as to swing freely.

9. Target back-stop in accordance with claim 8, characterized by the fact that the width of the individual lamellae amount to about 25 cm, that the thickness of the individual lamellae amount to about 20 cm, and that the lamellae are placed at a distance of 30 mm from one another.

10. Target back-stop in accordance with claim 9, characterized by the fact that the individual lamellae consist of several partial lamellae that have been arranged parallel to one another, and that the upper ends of the partial lamellae are interconnected by means of fastening devices.

11. Target back-stop in accordance with claim 10, characterized by the fact that the width of the individual partial lamellae amounts to some 25 cm, and that the thickness of the individual partial lamellae amounts to some 10 mm.

12. Target back-stop in accordance with claim 11, characterized by the fact that the individual lamellae have been subdivided into three parallel partial lamellae.

13. Target back-stop in accordance with claim 12, characterized by the fact that the individual lamellae consist of a hard rubber material with synthetic fiber mats that have been poured into it in several layers.

14. Target back-stop in accordance with claim 13, characterized by the fact that the lamellae consist of six layers of hard rubber material.

15. Target back-stop in accordance with claim 4, characterized by the fact that the angle (α

1) between the lamellae of the first row of lamellae and the normal to the target surface amounts to about 30°

.

16. Target back-stop in accordance with claim 6, characterized by the fact that the angle (α

2) between the lamellae of the second row of the lamellae and the normal to the target surface amounts to about 30°

.

17. Target back-stop in accordance with claim 1, characterized by the fact that the predetermined angle (α

1) between the lamellae of the first row of lamellae and the normal to the target surface and the predetermined angle (α

2) between the lamellae of the second row of lamellae and the normal to the target surface are of the same magnitude.