초록 ▼

A self-locking belt roller is provided and includes a belt winding shaft rotatably mountable in a housing, a profiled head, and a torsion rod which becomes operational to resist further extraction of a belt from the belt roller so as to effect thereby a first force limiting operation of the belt rol

A self-locking belt roller is provided and includes a belt winding shaft rotatably mountable in a housing, a profiled head, and a torsion rod which becomes operational to resist further extraction of a belt from the belt roller so as to effect thereby a first force limiting operation of the belt roller. The belt roller also includes a resistance facilitating element on the belt winding shaft or the profiled head and a deformation element for increasing the resistance force of the belt roller to further extraction of the belt either at the time before the actuation of the torsion rod to resist further belt unwinding or at the time during which the torsion rod resists further belt extraction. The deformation element is engaged by the resistance facilitating element during further rotation of the belt roller in a manner to increase the resistance of the belt roller to further extraction of the belt.

대표청구항 ▼

A self-locking belt roller is provided and includes a belt winding shaft rotatably mountable in a housing, a profiled head, and a torsion rod which becomes operational to resist further extraction of a belt from the belt roller so as to effect thereby a first force limiting operation of the belt rol

A self-locking belt roller is provided and includes a belt winding shaft rotatably mountable in a housing, a profiled head, and a torsion rod which becomes operational to resist further extraction of a belt from the belt roller so as to effect thereby a first force limiting operation of the belt roller. The belt roller also includes a resistance facilitating element on the belt winding shaft or the profiled head and a deformation element for increasing the resistance force of the belt roller to further extraction of the belt either at the time before the actuation of the torsion rod to resist further belt unwinding or at the time during which the torsion rod resists further belt extraction. The deformation element is engaged by the resistance facilitating element during further rotation of the belt roller in a manner to increase the resistance of the belt roller to further extraction of the belt. e surface of only the first narrow main back side (3') or the second narrow main back side (9'). 3. The envelope making paper of claim 1 wherein the paper is rectangular paper of A4 size. 4. The envelope making paper of claim 2, wherein the paper is rectangular paper of A4 size. 5. The envelope making paper of claim 3, for making a horizontal envelope, wherein when the long side of the rectangular paper is referred to as L, the short side is referred to as S, and the width of the adhesive strip (15) or (16) one of the second back sides (5) or (7) is referred to as P, (S-2P)/2 is bigger than L/3. 6. The envelope making paper of claim 4 for making a vertical envelope, wherein the long side of the rectangular paper is referred to as L, the short side is referred to as S, and the width of the adhesive part (17) or (19) of one of the main right sides (3') or (9') is referred to as P, (S-2P)/2 is bigger than L/3. 7. The method of making envelopes by folding flat sheets of standard size paper, said paper having: a rectangular main section 6 or 6' bordered by first and second long back sides (5, 7) or (3', 9') of a collective size greater than the size of the main section 6 or 6', by first and second end parts (3, 9) or (5', 7') at opposite ends of said main section 6 or 6', and first additional sides (2 and 8) or (2', 8') at junctions between said back sides (5, 7) or (3', 9') and said first and second end parts (3, 9) or (5', 7') to which junctions adhesive is applied and to one of which long back sides (5, 7) or (3', 9') adhesive material is applied along an outer edge (15 or 18) or (17 or 19); the steps of: a) folding the first right long back sides (5, 7) or (3', 9') into overlapping relation with said main section 6 or 6', b) folding said end parts (3, 9) or (5', 7') in overlapping relation to said main section 6 or 6', and c) adhesively securing the adhesive junctions and said long back sides (5, 7) or (3', 9') together. 8. The method as defined in claim 7, including placing the contents of the envelope on the back of the main section prior to performing said folding. trical component (300) lying adjacent to the second side (110B), the second portion (202) corresponding to at least those points of the masked area (202,204) at which the lower surface of the further electrical component (300) touch the masked area (202,204), the second portion (202) thereby forming a seal between the further electrical component (300) and the second side (110B) of the printed circuit board (110). 2. A method according to claim 1, further including the step of: f) submerging the electrical device in a potting compound, the second portion (202) preventing the ingress of potting compound between the further electrical component (300) and the printed circuit board (110). 3. A method according to claim 1, wherein the masked area (202,204) is a single contiguous area. 4. A method according to claim 3, wherein the second portion (202) is an outer portion of the masked area (202,204) and the first portion (204) is an inner portion of the masked area (202,204), all points on the periphery of the masked area (202,204) lying within the second portion (202). 5. A method according to claim 1, wherein the exposure to solder in step c) is achieved through a flow solder technique. 6. A method according to claim 1, wherein the further electrical component (300) is an inverter module.