Link mechanism and drawing machine
AssigneeThe Japan Steel Works, Ltd.
InventorsMasaki KATO, Ichiro NAKAJIMA
Life of this patent
Estimating the term…
Abstract
A link mechanism according to one embodiment includes a rail holder 31. The rail holder 31 includes a roller holding portion 40, guide rollers 60 each provided with an opening 63 in an upper surface and configured to move along a rail 14 while rotating, roller shafts 51 and 52 each having one end side fixed to the roller holding portion 40 and the other end side inserted into the guide roller 60 through the opening 63, and bearings 53 and 54 provided inside the guide rollers 60 and configured to rotatably support the guide rollers 60 with respect to the roller shafts 51 and 52. Further, the opening 63 of the guide roller 60 is entirely covered by the roller holding portion 40.
Claims5
A link mechanism used in a stretching machine configured to stretch a resin film, the link mechanism comprising:
- a pair of rail holders;
- a base member extending across the pair of rail holders;
- and
- a clip provided at one end of the base member and configured to grip the resin film,
- wherein each of the rail holders includes:
- a roller holding portion;
- a guide roller provided with an opening in an upper surface facing the roller holding portion and configured to move along a rail while rotating;
- a shaft having one end side fixed to the roller holding portion and the other end side inserted into the guide roller through the opening;
- and
- a bearing provided inside the guide roller and configured to rotatably support the guide roller with respect to the shaft, and
- wherein the opening of the guide roller is entirely covered by the roller holding portion.
A link mechanism used in a stretching machine configured to stretch a resin film, the link mechanism comprising:
- a pair of rail holders;
- a base member extending across the pair of rail holders;
- and
- a clip provided at one end of the base member and configured to grip the resin film,
- wherein each of the rail holders includes:
- a roller holding portion;
- a guide roller provided with an opening in an upper surface facing the roller holding portion and configured to move along a rail while rotating;
- a shaft having one end side fixed to the roller holding portion and the other end side inserted into the guide roller through the opening;
- a bearing provided inside the guide roller and configured to rotatably support the guide roller with respect to the shaft;
- and
- a cover member disposed between the roller holding portion and the guide roller and configured to cover the opening,
- wherein an annular first protrusion configured to enter a groove formed on the roller holding portion is formed on one surface of the cover member facing the roller holding portion, and
- wherein an annular second protrusion configured to enter the opening of the guide roller is formed on another surface of the cover member facing the guide roller.
A link mechanism used in a stretching machine configured to stretch a resin film, the link mechanism comprising:
- a pair of rail holders;
- a base member extending across the pair of rail holders;
- and
- a clip provided at one end of the base member and configured to grip the resin film,
- wherein each of the rail holders includes:
- a roller holding portion;
- a guide roller provided with an opening in an upper surface facing the roller holding portion and configured to move along a rail while rotating;
- a shaft having one end side fixed to the roller holding portion and the other end side inserted into the guide roller through the opening;
- a bearing provided inside the guide roller and configured to rotatably support the guide roller with respect to the shaft;
- and
- a cover member disposed between the roller holding portion and the guide roller and configured to cover the opening,
- wherein one surface of the cover member is in contact with a bottom surface of the roller holding portion facing the upper surface of the guide roller, and
- wherein another surface of the cover member opposite to the one surface is in contact with the upper surface of the guide roller around the opening.
5-10. (canceled)
Dependencies are inferred from the claim text.