Sheet or film clipping stretcher
AssigneeToshiba Kikai Kabushiki Kaisha
InventorsTakayoshi Sano, Satoru Nitta, Hiromu Saijyo
Life of this patent
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Abstract
A clip support member 30 has a first shaft member 51 cantilevered by guide rollers 56 and 56 for a guiding along a reference rail with a recessed channel 101, the clip support member 30 being provided with a slider 40 having a second shaft member 52 cantilevered by guide rollers 57 and 57 for a guiding along a pitch setting rail 120 with a recessed channel 121, the clip support member 30 supporting a clip 20 at an end thereof, where it has the first shaft member 51, whereto one end of a main link member 53 and one end of a sub-link member 54 are pivotally connected, to constitute a reference linkage at the clip 20 end.
Claims3
A sheet or film clipping stretcher including first and second clip arrays composed of clips, respectively, and configured to clip both side edge parts of a sheet or film to stretch the sheet or film,
- the sheet or film clipping stretcher comprising first and second clip array circulators line-symmetrically arranged on a plane, and configured to circulate the first and second clip arrays along line-symmetric prescribed routes, respectively,
- the first and second clip array circulators each respectively comprising
- a plurality of clip support members rectangular in shape, and each respectively having a clip supported on one longitudinal end part thereof, and a longitudinal elongate hole formed therein at the other end side,
- a first shaft member provided in a vicinity of the one end part of a respective clip support member,
- a slider slidably engaged with the elongate hole of the respective clip support member,
- a second shaft member provided to the slider of the respective clip support member,
- link members configured to link neighboring clip support members with each other,
- a reference rail engaged with a first engaging element provided on the first shaft member of the respective clip support member, and defining a prescribed route,
- a pitch setting rail provided along with the reference rail, engaged with a second engaging element provided on the second shaft member of the slider engaged with the respective clip support member, and configured to set a pitch between neighboring clip support members in a variable manner depending on a spacing distance relative to the reference rail, and
- a drive sprocket configured to selectively engage with a driving roller provided on the first shaft member of the respective clip support member to have the respective clip support member travel along the prescribed route, wherein
- the first and second engaging elements comprise guiding means, respectively, being guiding means constituting the first engaging element for one of the first shaft member and the reference rail to be thereby cantilevered, and guiding means constituting the second engaging element for one of the second shaft member and the pitch setting rail to be thereby cantilevered.
Dependencies are inferred from the claim text.