Abstract: A forestry harvester for delimbing a tree with an angular upper cutter and side cutters while advancing the tree by feed rollers, wherein when the feeding of the tree is stopped due to being incapable of cutting the limbs off, the angle-shaped upper cutter and the side cutters are moved relative to the tree with rotation of the feed rollers stopped to cut off the limbs of the tree therewith. The forestry harvester comprises a feed unit (1 or 100) including a pair of left-hand and right-hand clamp arms (8, 9 or 108, 109) and feed means (20 or 120), a chain saw box (22a) having a power chain saw (22), a delimbing unit (2) including an angle-shaped upper cutter (52) and a pair of cutter arms (26, 26) each having a side cutter (25), guide mechanism for guiding the delimbing unit for forward and rearward movement of the delimbing unit relative to the feed unit, and a hydraulic cylinder (47) actuated to move the delimbing unit (2) toward and away from the feed unit (1 or 100).

Abstract: A forestry harvester for delimbing a tree with an angular upper cutter and side cutters while advancing the tree by feed rollers, wherein when the feeding of the tree is stopped due to being incapable of cutting the limbs off, the angle-shaped upper cutter and the side cutters are moved relative to the tree with rotation of the feed rollers stopped to cut off the limbs of the tree therewith. The forestry harvester comprises a feed unit (1 or 100) including a pair of left-hand and right-hand clamp arms (8, 9 or 108, 109) and feed means (20 or 120), a chain saw box (22a) having a power chain saw (22), a delimbing unit (2) including an angle-shaped upper cutter (52) and a pair of cutter arms (26, 26) each having a side cutter (25), guide mechanism for guiding the delimbing unit for forward and rearward movement of the delimbing unit relative to the feed unit, and a hydraulic cylinder (47) actuated to move the delimbing unit (2) toward and away from the feed unit (1 or 100).

Abstract: A cutting device for cutting a material grappled by a grapple member of a grapple device is mounted on one side wall portion of a bucket which is pivotable vertically with respect to an arm swung vertically and is rotatable on an axis in an extension direction of the arm. The cutting device includes a cutting blade which is positioned outside or inside a side wall of the bucket and is pivotally supported on a base end portion of the open mouth portion of the bucket to be pivoted in a direction along the side wall from a position separated from an opening edge of the bucket to a position along the side wall of the bucket. A hydraulic cylinder is provided on a rear surface portion of the bucket and is connected to a pivoting base portion of the blade.

Abstract: A cutting device for cutting a material grappled by a grapple member of a grapple device is mounted on one side wall portion of a bucket which is pivotable vertically with respect to an arm swung vertically and is rotatable on an axis in an extension direction of the arm. The cutting device includes a cutting blade which is positioned outside or inside a side wall of the bucket and is pivotally supported on a base end portion of the open mouth portion of the bucket to be pivoted in a direction along the side wall from a position separated from an opening edge of the bucket to a position along the side wall of the bucket. A hydraulic cylinder is provided on a rear surface portion of the bucket and is connected to a pivoting base portion of the blade.

Abstract: A bulk material is compacted from its bulk state into a rectangular parallelepiped so that it can readily be wrapped with stretch film. To this end, a stretch film is wrapped spirally around a cylindrical skirt section having an open end while the stretch film is being moved towards the open end of the skirt section, thereby forming a cylinder of such stretch film. While the cylinder of wrapped film is being moved further, a pressed load material is pushed out of the skirt section to push the pressed load material into the cylinder of wrapped film fed past the open end of the skirt section. The wrapped cylindrical film is severed at positions spaced from opposite ends of the load material covered therewith or is sealed at these opposite ends.

Abstract: A bulk material is compacted from its bulk state into a rectangular parallelepiped so that it can readily be wrapped with stretch film. To this end, a stretch film is wrapped spirally around a cylindrical skirt section having an open end while the stretch film is being moved towards the open end of the skirt section, thereby forming a cylinder of such stretch film; while the cylinder of wrapped film is being moved further, a pressed load material is pushed out of the skirt section to push the pressed load material into the cylinder of wrapped film fed past the open end of the skirt section; and the wrapped cylindrical film is severed at positions spaced from opposite ends of the load material covered therewith or is sealed at these opposite ends.

Abstract: A simple operation winds film around, and thereby wraps therewith, a loadable object over its entire (six) surfaces. Film is wound spirally around the loadable object by revolving film feeders along a circular path about a horizontal axis while advancing the object through the circular path and along a path of the horizontal axis in one direction. After the loadable object is so spirally wrapped, it is rotated in a horizontal or vertical plane by an angle of 90 degrees. The loadable object is then advanced in the reverse direction again through the circular path while the film feeders are revolved as before to cause another film from the film feeders to be wound spirally around the loadable object. One film feeder may furnish a continuous strip of film, and another film feeder may furnish a continuous string of film formed by compression of such a strip of film.

Abstract: A simple operation winds film around, and thereby wraps therewith, a loadable object over its entire (six) surfaces. Film is wound spirally around the loadable object by revolving film feeders along a circular path about a horizontal axis while advancing the object through the circular path and along a path of the horizontal axis in one direction. After the loadable object is so spirally wrapped, it is rotated in a horizontal or vertical plane by an angle of 90 degrees. The loadable object is then advanced in the reverse direction again through the circular path while the film feeders are revolved as before to cause another film from the film feeders to be wound spirally around the loadable object. One film feeder may furnish a continuous strip of film, and another film feeder may furnish a continuous string of film formed by compression of such a strip of film.

Abstract: The object of the present invention is to provide a packaging apparatus that supplies the packaging material by the packing material supply means provided independently of the mobile body that moves along the annular guide body. In order to achieve the object, the packaging apparatus of the present invention comprises a mobile body for leading a packaging material, an annular guide body for guiding said mobile body along said annular guide body, mobile body drive means for moving the mobile body along the annular guide body, and packaging material supply means disposed outside said annular guide body.

Abstract: A simple operation winds film around and thereby wraps therewith a loadable object over its entire (six) surfaces. Film is wound spirally around the loadable object by revolving film feeders along a circular path about a horizontal axis while advancing the object past the inside of the circular path along a path of the horizontal axis in one direction. After the loadable object is so spirally wrapped, it is rotated in a horizontal or vertical plane by an angle of 90 degrees. The loadable object is then advanced in the reverse direction again past the inside of the circular path while the film feeders are revolved as before to cause another film from the film feeders to be wound spirally around the loadable object. One film feeder may furnish a continuous strip of film and another a continuous string of film reformed by compression from such a strip-like film.

Abstract: A reclamation pipe boring apparatus for sewerage wherein a vehicle body (14) is provided with an outrigger (20) upwardly projecting via the center thereof and actuated by hydraulic pressure, a cutting device (25) disposed in the front region of the vehicle body (14), actuated by hydraulic pressure and having a rotary cutter (24) at the front end, lift means (30) actuated by hydraulic pressure to move the cutting device (25) up and down, reach means (35) actuated by hydraulic pressure to move the cutting device (25) back and forth, and swing means (40) actuated by hydraulic pressure to turn the cutting device (25) clockwise and counterclockwise.

Abstract: A plastic film is simultaneously stretched laterally and longitudinally and wound around a load just after stretching thereof, thereby tightening the load in both the vertical direction and horizontal direction with the film.

Abstract: A spreader is positioned downstream of stretching rollers arranged to stretch a plastic film laterally and longitudinally. The spreader comprises a plurality of freely rotatable rollers arranged along an arc so as to spread the stretched plastic film laterally. A pair of guide rollers are provided for guiding the spread and stretched plastic film to a load.

Abstract: A plastic film is stretched both breadthwise and longitudinally just before it is wound around a load for wrapping. Stretching of the film is performed by passing the film between stretching rolls each having alternate peripheral ridges and grooves and arranged such that the ridges on each roll mesh with the grooves on the other roll.