| 摘要 |
Locking device (1) for a cross frame construction, the cross frame construction preferably constituting a part of a rollator (22) to facilitate folding of these, and the cross frame construction comprising a first cross bar (4), a first parallel bar (8) and a first hinge bar (6) pivotal connected with the cross bar (4) in a pivot point (11) and with the parallel bar (8). A locking hook part (12) is pivotal arranged at the hinge bar (6), the locking hook part comprising two locking hooks (14, 15) separated by a angle of rotation around a pivot pin (13) for the hook part (12); and at the cross bar (4), on each respective end of the pivot point (11), is arranged a first locking pin (2) for engagement with the locking hook (15) in a use position and a second locking pin (3) for engagement with the locking hook (14) in a transport or storage position. Between the hinge bar (6) and the hook part (12) a spring device (16) is arranged, and the hinge bar(6) is arranged with a stop pin (21) for abutment with a first side of the locking hook part (12). Further, second (23) and third (24) sides of the locking hook part (12) against inner engagement surfaces on each respective locking pin (14, 15) are shaped such that in said use position and storage or transport position so that the locking device (1) "latches" in locking engagement by itself, and that only during release of the locking engagement in the two respective positions that a user must perform an action on the locking device (1).
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