A scissor-type guide for guiding extension and retraction of lamellae, said scissor-type guide comprising - at least two scissor links (23, 123), each scissor link comprising a first scissor member (24, 124) and a second scissor member (25, 125), - a first rotational joint (26, 126) formed between the first and second scissor members (24, 124; 25, 125) of each one of the scissor links (23, 123), and - two second rotational joints formed between first ends (24', 25') of a first scissor member and a second scissor member of a first scissor link, and respective ones of second ends (124", 125") of a first scissor member and a second scissor member of a neighbouring, second scissor link; wherein the first and the second scissor members (24, 25) of the first scissor link have inner sides facing each other and outer sides facing away from each other; wherein the first scissor member and the second scissor member of the second scissor links have inner sides facing each other and outer sides facing away from each other; wherein the outer side of the first scissor member of the first scissor link faces towards the inner side of the first scissor member of the second scissor link, and the second scissor member of the first scissor link faces towards the inner side of the second scissor member of the second scissor link, and wherein a spring member is formed between the first scissor member (24, 124) and the second scissor member (25, 125) at a first rotational joint (26, 126) of the scissor-type guide, or between a first scissor member of the first scissor link and the first scissor member of a neighbouring second scissor link at a second rotational joint of the scissor-type guide. - at least two scissor links (23, 123), each scissor link comprising a first scissor member (24, 124) and a second scissor member (25, 125), - a first rotational joint (26, 126) formed between the first and second scissor members (24, 124; 25, 125) of each one of the scissor links (23, 123), and - two second rotational joints formed between first ends (24', 25') of a first scissor member and a second scissor member of a first scissor link, and respective ones of second ends (124", 125") of a first scissor member and a second scissor member of a neighbouring, second scissor link; wherein the first and the second scissor members (24, 25) of the first scissor link have inner sides facing each other and outer sides facing away from each other; wherein the first scissor member and the second scissor member of the second scissor links have inner sides facing each other and outer sides facing away from each other; wherein the outer side of the first scissor member of the first scissor link faces towards the inner side of the first scissor member of the second scissor link, and the second scissor member of the first scissor link faces towards the inner side of the second scissor member of the second scissor link, and wherein a spring member is formed between the first scissor member (24, 124) and the second scissor member (25, 125) at a first rotational joint (26, 126) of the scissor-type guide, or between a first scissor member of the first scissor link and the first scissor member of a neighbouring second scissor link at a second rotational joint of the scissor-type guide.