English to German Tech/Engineering Engineering (general) Vorhänge, Rollos

https://www.mysciencework.com/patent/download/cordless-zebra...

1. A hand-held zebra curtain with an upper beam adjustable mainspring, comprising a left bracket (1), a right bracket (2) and a rack (3) which connects the left bracket (1) and the right bracket (2); a scroll (4) is arranged between the left bracket (1) and the right bracket (2); the scroll (4) is provided with a roller blind; the left bracket (1) and/or the right bracket (2) is provided with a mainspring coiling device for rotating the scroll (4) to coil the roller blind; the mainspring coiling device comprises a regulating plunger (5), a mainspring (7), a mainspring fixing disk (8) and
a mainspring coiling disk (9); a toothed turntable (6) is nested on the regulating plunger (5); the mainspring (7) ???is sleeved on??? the mainspring fixing disk (8) in a relaxed state; a coiling end of the mainspring (7) is clamped with the mainspring coiling disk (9), characterized in that the left bracket (1) and the right bracket (2) are also provided with a resistance regulating device for regulating the resilience force of the mainspring (7).

2. The hand-held zebra curtain with the upper beam adjustable mainspring according to claim 1, characterized in that the resistance regulating device comprises a regulating screw (30), a nut (31) matched with the regulating screw (30), a pressing block (34)
and an elastic washer (32); the left bracket (1) and/or the right bracket (2) comprise shells (25) and end
covers (26) buckled with each other; each shell (25) is provided with a second fixing column (29) for fixing
the mainspring coiling disk (9); the second fixing column (29) is provided with a through hole matched
with the resistance regulating device; the regulating screw (30) is inserted into the through hole from out-
side to inside; the nut (31) is arranged on the regulating screw (30) and can axially move along the reg-
ulating screw (30); the pressing block (34) ???is sleeved outside??? the regulating screw (30); a spring (33) is
arranged between the nut (31) and the pressing block (34); the spring (33) is sleeved on the regulat-
ing screw (30); one side of the pressing block (34) is linked with the nut (31), and the other side of the
pressingblock(34)comes into contact with the mainspring coiling disk (9); the mainspring coiling disk (9)
is provided with an external spline (20) inserted with ...