1. Method of producing or modifying explosive-filled, fragmentation shells (1) that disperse fragments on the pre-programmed detonation of their own explosive (7), that is to say when the shell bursts, so that when fired from a barrelled weapon these present a reduced risk of injury to personnel and damage to materiel, which at the moment of firing are undeservedly situated between the firing barrelled weapon and a target, characterized in that the material parts in the rear body part (6) of the shell (1), which when the shell (1) bursts normally give rise to fragments directed rearwards in relation to the direction of flight (A) of the shell (1), are dimensioned and thickened (5) so that the fragments formed from these material parts of the shell (1) acquire a rearward velocity away from the centre of detonation of the explosive (7) that is lower than the flight velocity of the shell (1) itself at the instant of bursting.
2. Method according to claim 1, characterized in that the material in the parts of the shell body (6) which nonnally give rise to rearward fragments is strengthened by means of a separate material thickening (5).
3. Method according to claim 2, characterized in that the separate material thickening is provided by a preferably dished insert (5), which is applied to conform precisely to the inner wall of the shell (1) inside a space (3) in the shell body (6) intended for the explosive (7).
4. Method according to claim 1, characterized in that the material thickening or the insert (5) is produced from a material which is ignited when the shell (1) bursts and thereby gives rise to a pressure effect together with braking of the velocity of all the fragments formed when the shell (1) bursts a directed rearwards in relation to the direction of flight (A) of the shell (1).
5. Method according to claim 1, characterized in that it is used for modifying older shell bodies (6), previously manufactured and stored.
6. Explosive-filled, fragmentation shell (1) that disperses fragments on the pre-programmed detonation of its own explosive (7), that is to say when the shell bursts, modified in accordance with one of the methods according to claim 1, so that the shell (1), when it bursts, presents a reduced risk of injury to personnel and damage to materiel, which at the instant of bursting are undeservedly situated between the firing weapon and the target, characterized in that the parts of the material in the rear part of the shell body (6), which when the shell (1) bursts normally give rise to fragments directed rearwards in relation to the direction of flight (A) of the shell (1), comprise a material thickening (5) which is dimensioned so that the fragments formed from these parts of the shell (1) acquire a rearward velocity away from the centre of detonation of the explosive (7) that is lower than the flight velocity of the shell (1) itself at the instant the shell (1) bursts.
7. Explosive-filled shell according to claim 6, characterized in that the material in the parts of the shell body (6) which normally give rise to rearward fragments comprises a separate material thickening (5).
8. Explosive-filled shell according to claim 7, characterized in that the separate material thickening (5) is arranged in an inner rear part of the shell body (6) and comprises a preferably dished material-thickening insert (5).
9. Explosive-filled shell according to any one of claim 6, characterized in that the material thickening or the inert (5) comprises a material capable of igniting when the shell (1) bursts.
10. Method according to claim 2, characterized in that the material thickening or the insert (5) is produced from a material which is ignited when the shell (1) bursts and thereby gives rise to a pressure effect together with braking of the velocity of all the fragments formed when the shell (1) bursts a directed rearwards in relation to the direction of flight (A) of the shell (1).
11. Method according to claim 3, characterized in that the material thickening or the insert (5) is produced from a material which is ignited when the shell (1) bursts and thereby gives rise to a pressure effect together with braking of the velocity of all the fragments formed when the shell (1) bursts a directed rearwards in relation to the direction of flight (A) of the shell (1).
12. The method according to claim 4 wherein said material is aluminum.
13. Method according to claim 2, characterized in that it is used for modifying older shell bodies (6), previously manufactured and stored.
14. Method according to claim 3, characterized in that it is used for modifying older shell bodies (6), previously manufactured and stored.
15. Method according to claim 4, characterized in that it is used for modifying older shell bodies (6), previously manufactured and stored.
16. Explosive-filled shell according to claim 7 characterized in that the material thickening or the inert (5) comprises a material capable of igniting when the shell (1) bursts.
17. Method according to claim 8, characterized in that it is used for modifying older shell bodies (6), previously manufactured and stored.
18. The method according to claim 9 wherein said material is aluminum.
19. Method according to claim 12, characterized in that it is used for modifying older shell bodies (6), previously manufactured and stored.
20. Explosive-filled shell according to claim 18 characterized in that the material thickening or the inert (5) comprises a material capable of igniting when the shell (1) bursts.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A pointing device comprising a case fixed to a mounting substrate, a sliding-type operating body that is mounted to said case for inputting a signal in X-Y directions and is slid in all directions around itself and along a surface of said substrate, and a pair of moving bodies for moving linearly in X and Y directions in said case as said operating body is slid, wherein a metal plate is used for at least one of said pair of moving bodies.
2. The pointing device according to claim 1, wherein said case has a two-piece structure formed by mounting an upper case and a lower case to each other and at least one of said upper case and said lower case is formed of a metal plate.
3. The pointing device according to claim 1, wherein said case is positioned below said pair of moving bodies and houses a built-in substrate for forming a volume.
4. The pointing device according to claim 1, wherein said moving body for which said metal plate is used has a plate-shaped metal portion extending in a direction perpendicular to a moving direction and resin portions in a pair respectively mounted to opposite end portions of said metal portion for movably retaining said metal portion in said case.
5. The pointing device according to claim 4, wherein said resin portions retain a contact for forming said volume on a lower face side.
6. The pointing device according to claim 5, wherein said contact comes into sliding contact with a resistor circuit formed on an upper face of said built-in substrate.
7. The pointing device according to claim 1, wherein said moving bodies are resiliently retained in an origin position by springs for origin returning disposed between a top plate portion of said case and resin portions.
8. The pointing device according to claim 1, wherein said operating body can move in a Z direction perpendicular to said X-Y directions and operates a press-down switch disposed below said operating body.
9. The pointing device according to claim 8, wherein said press-down switch is formed of a switch circuit formed on an upper face of a built-in substrate and a resilient contact chip fixed onto said switch circuit.