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US 4,745,828 AGranted
Rotary wire stripper
OwnerJiri Stepaninventor
Life of this patent
Estimating the term…
Abstract
A device for the mechanical stripping of electrical or optical cables has a stop for a fed-in conductor. The conductor is fixed in position by clamping jaws, whereupon its insulation can be severed by at least one rotating stripping blade. Disposed immediately next to each blade is a centering jaw, which centers the conductor. The jaw is radially movable relative to the blade so as to permit the penetration of the blade into the layer of insulation. The blades and the centering jaws are positioned axially and the desired cutting depth of each stripping operation is adjusted by spindles, each of which is operated by a motor which is controlled by a digital controller.
Claims21
Device for removing a layer from electrical or optical cable, or the like, the device comprising:
- frame means;
- a stripping blade mounted on the frame means for being movable radially with respect to the cable for movement into contact with the layer of the cable to be removed, and means for rotating the blade around the axis of the cable, whereby the blade may sever the layer of the cable around the cable;
- clamping jaws mounted on the frame means for being moved into clamping engagement with the cable, for fixing the cable in an axial position with a free end of the cable at a predetermined terminal position relative to the frame means;
- centering jaws mounted on the frame means and disposed axially of the cable in a location near the blade, and means for moving the centering jaws radially of the cable into engagement with the cable, for radially holding and positioning the cable with respect to the centering jaws and the blade;
- wherein the centering jaws are placed so that when the centering jaws clamp the cable, the centering jaws are directly next to the blade;
- the centering jaws being movable radially of the cable independently of the radial movement of the blade with respect to the cable;
- the means for moving the centering jaws radially into engagement against the cable comprising:
- a first bevel surface in engagement with the centering jaws at an axial position that is separated from the position where the centering jaws contact the cable, such that motion of the bevel surface axially of the cable moves the engaged centering jaws into controlled symmetrical clamping engagement with the cable;
- and
- bevel surface moving means in engagement with the first bevel surface, for shifting the first bevel surface to move the centering jaws into engagement with the cable;
- and
- means for moving the blade radially toward the cable, comprising a second bevel surface spaced axially of the cable from the blade, the blade having means attached to it that are in engagement with the second bevel surface, the second bevel surface being so oriented that upon movement of the second bevel surface in a direction axially of the cable, the blade is moved radially to contact the layer of the cable to be removed.
9 more elements
Device for removing a layer from electrical or optical cable, or the like, the device comprising:
- frame means;
- a stripping blade mounted on the frame means for being movable radially with respect to the cable for movement into contact with the layer of the cable, and means for rotating the blade around the axis of the cable, whereby the blade may sever the layer of the cable around the cable;
- clamping jaws mounted on the frame means for being moved into clamping engagement with the cable, for fixing the cable in an axial position with a free end of the cable at a predetermined terminal position relative to the frame means;
- centering jaws mounted on the frame means and disposed axially of the cable in a location near the blade, and means for moving the centering jaws radially of the cable into engagement with the cable, for radially holding and positioning the cable with respect to the centering jaws and the blade;
- the centering jaws being movable radially of the cable independently of the radial movement of the blade with respect to the cable;
- the means for moving the centering jaws radially into engagement against the cable comprising:
- a bevel surface in engagement with the centering jaws at an axial position that is separated from the position where the centering jaws contact the cable, such that motion of the bevel surface axially toward the cable moves the engaged centering jaws into controlled symmetrical clamping engagement with the cable,
- bevel surface moving means in engagement with the bevel surface, for shifting the bevel surface to move the centering jaws into engagement with the cable;
- wherein the blade has a pair of arms interconnected by a central portion, thereby defining a general U-shape in its cross section transverse to the radial direction of movement of the blade with respect to the cable, and a respective one of the centering jaws is immediately adjacent the blade and that jaw is shaped and disposed for being clasped by the arms of the U-shaped blade;
- and
- wherein the respective centering jaw that is clasped by the blade is also generally U-shaped in the cross section taken along the direction of radial movement of the centering jaw, and the centering jaw has one leg of its U-shape which is clasped by the blade;
- the blade being so oriented that it clasps the leg of the centering jaw which is away from the bevel surface;
- and the blade is further clasped between the legs of the centering jaw.
10 more elements
Device for removing a layer from electrical or optical cable, or the like, the device comprising:
- frame means;
- a stripping blade mounted on the frame means for being movable radially with respect to the cable for movement into contact with the layer of the cable, and means for rotating the blade around the axis of the cable, whereby the blade may sever the layer of the cable around the cable;
- clamping jaws mounted on the frame means for being moved into clamping engagement with the cable for fixing the cable in an axial position with a free end of the cable at a predetermined terminal position relative to the frame means;
- centering jaws mounted on the frame means and disposed axially of the cable in a location near the blade, and means for moving the centering jaws radially of the cable into engagement with the cable for radially holding and positioning the cable with respect to the centering jaws and the blade;
- the centering jaws being movable radially of the cable independently of the radial movement of the blade with respect to the cable;
- the means for moving the centering jaws radially into engagement against the cable comprising:
- a bevel surface in engagement with the centering jaws at an axial position that is separated from the position where the centering jaws contact the cable, such that motion of the bevel surface axially of the cable moves the engaged centering jaws into clamping engagement with the cable;
- and
- bevel surface moving means in engagement with the bevel surface, for shifting the bevel surface to move the centering jaws into engagement with the cable;
- the centering jaws having a width extending transverse to the axis and being wider than the diameter of the cable being clamped;
- each centering jaw has a continuous jaw surface including a smooth holding surface portion for holding the cable and a roughened retaining surface portion thereon, said smooth portion and roughened portion being joined along a line parallel to the axis of the cable, said roughened surface portion preventing the cable from being shifting out from between the centering jaws by said rotation of the blade with respect to the cable.
8 more elements
Dependencies are inferred from the claim text.