초록 ▼

A strap tensioning device comprises a frame (1) with a rotatable reel (3) and a turnable command member (2). A ratchet wheel (43) is co-rotatively connected with the reel, the wheel cooperating with two spring-loaded latch elements (14, 29). When the command member (2) is turned out from the frame (

A strap tensioning device comprises a frame (1) with a rotatable reel (3) and a turnable command member (2). A ratchet wheel (43) is co-rotatively connected with the reel, the wheel cooperating with two spring-loaded latch elements (14, 29). When the command member (2) is turned out from the frame (1), the reel (3) is carried with it. At an opposed return movement, the reel (3) is blocked. A rotatable support roller (4) is arranged between the two side pieces (5, 5') of the frame (1). The reel (3) comprises a shaft (16) whose opposed ends are arranged in elongated holes (9). In this way, the reel (3) may be distanced from the support roller (4), whereby the device may be used for both strap tensioning and strap feeding.

대표청구항 ▼

[ I claim:] [1.] A device for applying tensional force to a strap, comprising:a frame having opposed side members;a rotatable reel mounted between said side members, having engagement means for selectively releasably lockingly engaging a strap in a first mode of operation of the device, for winding

[ I claim:] [1.] A device for applying tensional force to a strap, comprising:a frame having opposed side members;a rotatable reel mounted between said side members, having engagement means for selectively releasably lockingly engaging a strap in a first mode of operation of the device, for winding said strap around said reel thereby retracting and retaining a length of said strap into said device;a control means associated with said reel for rotatably driving said reel;a ratchet and releasable first and second ratchet latch means associated with and actuated by said control means for rotating said reel in a first direction while selectively preventing rotation in a second direction;a rotatable member mounted between said side members and spaced parallel to said reel to define a nip between said reel and said rotatable member; anda spacer means for varying the spacing between said reel and said rotatable member, including biasing means to urge said reel or rotatable member towards the other, to selectively frictionally engage said strap to said reel within a second mode of operation wherein an unlimited length of said strap may be fed through the device and tensioned by rotation of said reel.