Cutting – Means to drive or to guide tool – Plural tools selectively engageable with single drive
Reexamination Certificate
1999-07-21
2001-04-03
Rada, Rinaldi I. (Department: 3724)
Cutting
Means to drive or to guide tool
Plural tools selectively engageable with single drive
C083S468500, C083S687000, C083S691000, C083S620000, C030S358000
Reexamination Certificate
active
06209434
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates, in general, to paper sheet decorative punching devices and, more particularly, to a punching device designed to cut or punch a desired portion, such as a corner or a linear side, of a paper sheet, such as a photograph, a card or a letter paper, utilizing two or more different pattern punching blades, thus decorating such paper sheets.
2. Description of the Prior Art
In a conventional paper sheet decorative punching device, a cutting hole is formed on the center of a lower fixed base. A punch holder is mounted to one end of the fixed base and is positioned to be normally spaced apart from the base at an interval. A punching blade guide hole, corresponding to the cutting hole of the base, is formed at the center of the punch holder. A spring-biased punching blade member, having a decorative pattern and a diameter slightly smaller than that of both holes, is held on the punch holder in a way such that the lower end of the blade member is normally positioned within the punching blade guide hole. A pressure plate is integrated with the upper end of the blade member. The punch holder is assembled with a housing having a pressure button hole, with a pressure button being set within the housing so as to be positioned on the pressure plate.
However, such a conventional punching device is designed to cut or punch a portion of a paper sheet utilizing one punching blade member, having a fixed decorative pattern, without allowing a user to freely form a variety of pattern holes on the paper sheet.
Therefore, the conventional punching device forces a user, wanting to form a variety of decorative pattern holes on a paper sheet, to separately purchase a plurality of punching devices with punching blade members having differently designed patterns. This is inconvenient to the user while making the user exceedingly waste money to purchase the devices. In addition, the conventional decorative punching devices are free from any guide means designed to appropriately set each corner of a paper sheet relative to the punching device when it is necessary to form a decorative pattern hole on each corner of the paper sheet, such as a rectangular photograph or a rectangular card. Therefore, the punched holes of the paper sheet may be not formed on corresponding positions and fail to desirably decorate the paper sheet.
In an effort to solve the above-mentioned problems, Korean U.M. Laid-open publication No. 98-15229 discloses a decorative punching device having four different decorative punching patterns around a punching blade member. Four guide members are diagonally formed on a die which is provided with a cutting hole having the same profile as that of the blade member. A punch holder, with a guide hole having the same profile as that of the blade member, is integrated with the upper end of the guide members. In this punching device, the four guide members form four paper sheet insert means. The above punching device thus easily and appropriately cuts or punches the corners of a paper sheet due to the four guide members. However, this decorative punching device is problematic in that it is impossible to form any additional decorative pattern on the corners after the corners are primarily cut or punched by the device.
SUMMARY OF THE INVENTION
Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a paper sheet decorative punching device, which is designed to selectively cut the corners of a paper sheet or punch any desired portion of the sheet and to perform a punching operation for the corners of a paper sheet utilizing two different pattern punching blade parts at the same time.
In order to accomplish the above object, the present invention provides a paper sheet decorative punching device, comprising: a housing having a specifically designed profile, the housing including: a circular opening defined by a stop ring at a top end of the housing; and a cylindrical seat interiorly formed in a lower portion of the housing while communicating with the circular opening; a pressure unit movably held in the housing, the pressure unit consisting of: a cap-shaped pressure member having an annular stop flange along its lower edge and movably received in the opening of the housing with the stop flange being stopped by the stop ring of the housing; and two or more longitudinal guide pieces integrally extending from the lower edge of the pressure member downwardly to a length at diametrically opposite positions; a punching blade unit adapted for punching a paper sheet, the punching blade means consisting of: a flat plate positioned under a top wall of the pressure member and having two or more guide notches at diametrically opposite positions so as to allow the guide pieces of the pressure unit to be movable within a predetermined range, thus allowing the pressure member to be rotatable within the range; and first and second punching blade parts integrally extending from a lower surface of the flat plate downwardly in a vertical direction, the first and second blade parts having different punching patterns and different lengths; elastic means for normally biasing both the pressure unit and the punching blade unit upwardly, thus letting the pressure unit be normally and elastically projected from the housing upwardly; a base unit assembled with the lower end of the housing and used for holding the device on a flat support surface, the base unit consisting of: a base plate having the same profile as that of the lower end of the housing and having both a seat and a cutout discharging hole; and two edge guide members symmetrically hinged to the base plate using hinge joints and adapted for guiding an edge of the paper sheet during a punching operation, the edge guide members individually having both an edge contact blade at one side thereof and a stop shoulder at a position around the hinge joint; and a jig unit supported on the base unit and consisting of: a holder member seated within the cylindrical seat of the housing and provided with first and second guide holes for guiding the two punching blade parts, the holder member also having diametrically opposite guide slots for selectively guiding the guide pieces of the pressure unit; and a cutting member seated in the seat of the base plate and having first and second cutting holes at positions corresponding to the first and second guide holes of the holder member, the cutting member being assembled with the holder member by a connection plate, the connection plate having a bent plate portion forming a paper sheet insert gap between the cutting member and the holder member.
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Kim Ok H.
Oh Wan Y.
DN Craft Corporation
Goodman Charles
McGuireWoods LLP
Rada Rinaldi I.
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