Halocho #937 - Items hanging on trees on Shabbat

Picking fruit is forbidden on Shabbat.

On Shabbat one may not even remove items hanging from trees.

If there's a basket hanging on a tree, one may not even remove items from the basket, nor put items into the basket.

If the basket is hanging from a hook that is screwed into the tree, one may not remove the basket (nor hang it up).

However, if the basket is hanging from a hook that is screwed into the tree, one may remove items from the basket, as well as add items into the basket on Shabbat.

Source: Kitzur Shulchan Aruch 80:60

So, it would seem that if the hammock is tied to hooks that are screwed into the trees - and the trees won't move when swinging on the hammock (as we learnt 2 weeks ago) - it shoud be permissible to use a hammock on Shabbat.

Source: http://www.zomet.org.il/Eng/?CategoryID=160&ArticleID=6381

Shabbat Shalom

- Danny Schoemann
Thursday, 5 Kislev 5772