Abstract: The purpose of the present invention is to provide a polarizing plate protective film and liquid crystal display device comprising same whereby the generation of egg-shaped blur in a liquid crystal display device (especially an IPS liquid crystal display device) can still be limited even under high-temperature/high-humidity conditions. For this polarizing plate protective film, if nx is the refractive index in the X-axis direction at which the birefringence in the film surface reaches a maximum and ny is the refractive index in the Y-axis direction orthogonal to the X-axis direction in the film surface, then the birefringence under stress (nx?ny) of the film as measured at a wavelength of 589 nm when any tensile stress 5-35 MPa is applied in the X-axis direction or Y-axis direction of the film under 50 DEG C, 80% RH conditions is 0.

Abstract: A workpiece fabric holding device for producing neatly folded pocket pieces for attachment to an article clothing. When a peripheral edge of a patch pocket P put on a gage plate at an operational position is folded back under the gage plate, a folded portion around the edge with a double folded portion formed at the corners of the patch pocket P. Then the gage plate is moved downward and the folded portion and the double folded portion are depressed to a cloth W positioned on a machine table. A hollow is formed on the machine table which opposes and receives the double folded portion. A stopper is arranged in the hollow to prevent the cloth of the folded portion or the double folded portion from being drawn out beyond the periphery of the patch pocket P.

Abstract: A horizontal axis full rotary hook for a sewing machine, including a generally cylindrical hook base having a point of hook, an inner circumferential surface, and a guide groove formed in the inner circumferential surface; and a generally cylindrical bobbin-case holder having an inner circumferential surface, an outer circumferential surface, and a part-circumferential rail provided on the outer circumferential surface, the bobbin-case holder being supported by the hook base such that the bobbin-case holder is freely rotatable relative to the rotary hook while the rail is guided in the guide groove, the bobbin-case holder having a needle aperture which allows a sewing needle with an upper thread to be moved down to a bottom position thereof, the needle aperture having a first inclined inner surface which is opposite to the point of hook with respect to the needle at the bottom position, a distance between the needle at the bottom position and the first inclined inner surface as measured in a direction paralle

Abstract: A workpiece fabric folding device having a label clamping mechanism. The device is operated for folding back an outer end portion of a first workpiece fabric and for stitching the folded back portion to a second workpiece fabric by a sewing machine. In the folding back operation, a label piece is also positioned at the folded back portion for simultaneously stitching the label to the second workpiece fabric. The folding device includes a gauge plate whose outer contour defines a folding-back line of the first workpiece fabric, a bending depression member positioned above the gauge plate for bending the outer edge portion, and a plurality of folding segments for urging the bent outer edge to a position below the gauge plate. The label clamping mechanism is disposed on the bending depression member at a position adjacent the folded-back position. The mechanism includes a label clamping unit which holds one portion of the label, and moving unit for angularly moving the clamping unit to the folded-back position.

Abstract: A workpiece fabric holding or clamping device having a lower plate for holding a major part of the workpiece and a plurality of upper plates movable in a horizontal direction above the lower plate for selectively holding the workpiece in combination with the lower plate. The lower plate is formed with an opening whose area covers at least two sewing loci, and the upper plates are each respectively formed with needle slits having two sides. Each side is provided with downwardly extending fabric clamping portions extending into the opening of the lower plate. Through horizontal movements of the plurality of upper plates, at least two sewing loci are defined by the combination of the needle slits. If the slits are positioned spaced away from each other, an auxiliary pressure plate is positioned in the space to hold the spaced portion of the workpiece. Further, the upper plates are vertically movable. The horizontal movements of the upper plates are performed at ascent positions of the upper plates.

Abstract: A workpiece folding device for a sewing machine which can fold the peripheral edge of a fabric such as pocket cloth, comprising a gage plate on which the pocket cloth is placed, a press plate superimposed on the gage plate for folding down the edge of the cloth along the contour of the gage plate, a folding-pieces support member surrounding the periphery of the gage plate, a plurality of folding pieces provided on the folding-pieces support member and shifted between two positions: an operational position under the gage plate for folding down the peripheral edge of the cloth and a preparatory position apart from the gage plate, and a plurality of pinching pieces for pinching the gage plate, the cloth and the press plate in cooperation with the corresponding folding pieces in the operational position.

Abstract: A workpiece fabric holding device for holding a pocket cloth onto a garment, and for feeding these on a sewing machine table for effecting a pocket sewing. Various kinds of sewing locus are required for various pocket sewings. A base pressure plate and associated movable pressure plate are provided. The base pressure plate is formed with a major needle slot, and the movable pressure plate is formed with at least two minor needle slots or holes having shapes different from each other. The combination of the major needle slot and one of the minor needle holes will provide a desired needle cut-out having a shape in conformance with a desired sewing locus. A plurality of such combinations can be provided by moving the movable pressure plate relative to the base pressure plate. For this, a holding means is provided to temporarily fix the position of the movable pressure plate.

Abstract: A work piece setting apparatus including a sensor for detecting patterns of two work pieces, two holders for holding the cloth pieces, a moving device for moving the lower holder, a rotator for rotating the lower holder, a calculator for calculating a mismatch amount for the patterns according to signals detected by the sensor and a controller for controlling the moving device and the rotator according to the mismatch amount. The lower work piece is moved and rotated with the lower holder and the patterns of two work pieces are matched. After the work pieces are matched and set, a carrying device carries the work pieces to a sewing position from a setting position on a work table.

Abstract: A pocket cloth folding device of a pocket setter in which a flow controller is provided on a folding-pieces support member such that the amount of working fluid through a fluid pressure driver for movement of the folding-pieces support member is controlled. The flow controller is constructed to be connected to either a flow supply path or a flow exhaust path via connectors. The flow amount of the flow controller is regulated in advance according to the type of the folding-pieces support member. Therefore, the pocket cloth folding device can fold the peripheral edge of the pocket cloth, immediately after the folding-pieces support member is attached to support blocks. The amount of supply air and exhaust air of the fluid pressure driver does not need to be adjusted each time a different type of pocket cloth is to be folded.

Abstract: A workpiece holding device for a sewing machine is disclosed. When a workpiece holder is connected to a supporter, a connecting rod having a peripheral groove and extending from the workpiece holder is inserted into a horizontal hole formed in the supporter. In this case, the peripheral groove of the connecting rod is positioned to communicate with a vertical hole formed in the supporter. A piston rod slidably provided in the vertical hole is actuated by an air cylinder mechanism to be engaged with the peripheral groove of the connecting rod. In order to firmly engage the connecting rod and the piston rod, spring mechanism is also provided in addition to the air cylinder mechanism. Thus, the workpiece holder can be fixedly connected to the supporter, and easily detached from the supporter without tools and troublesome operations.