摘要:
A hole punch unit has a punching section, a longitudinal registering mechanism, and a transverse registering mechanism. The registering mechanisms incline the punching section in accordance with a skew of a sheet. The punching section thus corrected in position punches the sheet. The punching section is corrected in position, at both the leading edge of the sheet and the trailing edge thereof, thus increasing the precision of positioning the punching section and shortening the time required to position the punching section.
摘要:
A hole puncher has a base, multiple cutter brackets, multiple cutters, multiple springs, a linkage, an activating member and a handle. The base has two ends. The cutter brackets are mounted on the base. The cutters are mounted slidably through the cutter brackets. The linkage connects pivotally to one end of the base. The activating member connects pivotally to the linkage. The handle connects pivotally to the other end of the base and selectively pivots the linkage down. With the linkage and the activating member, the hole punch is effort-saving.
摘要:
A punch for punching a sheet of material the punch having a body formed with a fissure for receiving the sheet of material, a pivot shaft defining a pivot point and a lever retaining means secured to said body. A lever pivotably mounted about the pivot point of said pivot shaft, is provided, the lever having an open position when one end of the lever is elevated to a height above the pivot point, and the lever having a closed position in which the lever is positioned parallel to the fissure. A block is provided which is positionable between the lever and the body. The body is provided with longitudinal support ridges and the lever is provided with side ridges, with the pivot point positioned in substantially the same plane as the longitudinal support ridge so that when the punch is closed, the side ridges of the lever pass outside of the support ridges of the body in a nesting relationship, allowing the punch to form a flat profile when closed.
摘要:
A punch device for punching parallel slots in sheets to facilitate the mounting of card-like objects on sheets. The device comprises a male plate on which at least one pair of cutting projections are mounted. The device also comprises a female plate moveably hinged to the male plate through which rectangular slots are formed, each slot being so positioned as to correspondingly face one of the cutting projections in the male plate. The hinge assembly comprises an axle part and a swivel part. The axle part comprises cams and the swivel part comprises grooves. The cams are positioned to penetrate the grooves and wrap around over an angle less than the whole circumference of the axle part.
摘要:
A hole punch unit has a punching section, a longitudinal registering mechanism, and a transverse registering mechanism. The registering mechanisms incline the punching section in accordance with a skew of a sheet. The punching section thus corrected in position punches the sheet. The punching section is corrected in position, at both the leading edge of the sheet and the trailing edge thereof, thus increasing the precision of positioning the punching section and shortening the time required to position the punching section.
摘要:
A cutting apparatus for cutting a corner from sheet material to a selectable profile. In one set of embodiments, the cutting apparatus comprises a cutting assembly that includes a cutting element having a plurality of cutting profiles wherein each cutting profile may have a unique profile. The cutting assembly is configured such that an active cutting profile is selectable from the plurality of cutting profiles available on the cutting element. Engagement of the active cutting profile with one or more pieces of sheet material cuts a corner from the sheet material to a profile indicative of the active cutting profile. Cutting profiles may include curves having a uniform or variable radius of curvature and other forms appropriate for cutting a corner of sheet material.
摘要:
A page indicator tab (1) may be provided by cutting out a tongue-like section in parallel with free side edge (2) of a paper page. The section (1) is provided at a predetermined distance from the side edge (2), thus providing a remaining strip (3) between the section (1) and the side edge (2). The section (1) is folded along an oblique line (5) in relation to the side edge (2) and then pushed through a slit (6) already formed between the section (1) and the strip (3). The section (1) is now held in place by the counteracting forces from a base part (4) of the section (1) and the strip (3).
摘要:
A manually operated single hole punch employs a pair of pivoted members having squeezable handles. A pair of opposed jaws have canopies formed from transparent or semi-transparent material to facilitate alignment of the punch with the material to be punched and to observe a reservoir which receives punched remnants.
摘要:
A sheet punch device comprises a lower base providing a reference plane on which a sheet material is placed, the lower base having a jig formed with a pattern hole for punching a sheet material; a punching unit aligned onto the lower base, the punching unit including a punching block having a cutting blade sliding up and down to pass through the pattern hole of the jig to thereby punch the sheet material; and an intermediate plate separated from the punching unit and detachably attached onto the lower base with the sheet material interposed between the intermediate plate and the lower base.
摘要:
A rotary punching apparatus includes: an upper rotation plate provided with punching member on which punching blade having a pattern of a specific shape is formed, and an upper jig which support elastically the punching member and forms a guide hole in the same shape as the pattern; an upper plate configured to enable the upper rotation plate to be rotated; a lower rotation plate including lower jig on which a punching hole in the same shape as the pattern is formed; and lower plate configured to enable the lower rotation plate to be rotated.