Window blind cutting machine

• US 20050045012A1
• Filed: 12/02/2003
• Published: 03/03/2005
• Est. Priority Date: 09/03/2003
• Status: Active Grant

• Current Assignee: Nien Made Enterprises Company Limited
• Original Assignee: Nien Made Enterprises Company Limited
• Inventors: Nien, Ming
• Granted Patent: US 7,024,977 B2
• Time in Patent Office: Days
• US Class Current: 83/517
• CPC Class Codes: B23D 23/00 Machines or devices for shearing or cutting profiled stock hand-held devices B23D29/00
• CPC Class Codes: B23D 31/00 Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines
• CPC Class Codes: B23D 33/12 Equipment for indicating where to cut
• CPC Class Codes: E06B 9/266 Devices or accessories for making or mounting lamellar blinds or parts thereof cleaning of lamellar blinds A47L4/00; joining plastics plates for making venetian blinds B29C66/437
• CPC Class Codes: Y10T 83/819 With intermediate work support
• CPC Class Codes: Y10T 83/858 Indicates dimension of work being cut
• CPC Class Codes: Y10T 83/86 To another tool assembly

Abstract

A window blind cutting machine includes a machine base; two cutting units respectively disposed at two ends of the machine base, each cutting unit having a cutter movable along a respective cutting path across a longitudinal axis of the machine base for cutting off a part of the window blind carried on the machine base that protrudes over a respective reference line based on the cutting path, two measuring devices respectively disposed at an outer side of each cutting unit for measuring the part of the window blind that protrudes over the reference line, and two inner measuring rules arranged in parallel to the longitudinal axis and respectively extended in reversed directions from one cutting unit toward the other and having a respective true-zero disposed at the reference line, for measuring the length of the window blind from the reference line.

Claims

1. A window blind cutting machine comprising:

a machine base for holding moveably a window blind to be cut along a direction parallel to a longitudinal axis of said machine base;

two cutting units respectively disposed at two distal ends of said machine base, said cutting units each having a cutter movable along a respective cutting path across the longitudinal axis of said machine base for cutting off a part of the window blind held on said machine base that protrudes over a respective reference line based on said cutting path;

at least one measuring device respectively disposed at an outer side of one said cutting unit, said at least one measuring device each having an outer measuring rule disposed in parallel to the longitudinal axis of said machine base for measuring the part of the window blind that protrudes over said reference line;

wherein said machine base is provided with at least one inner measuring rule arranged in parallel to the longitudinal axis of said machine base, said at least one inner measuring rule respectively extending in direction from one of said cutting units toward the other cutting unit and having a respective true-zero disposed at the reference line of the cutting path of the corresponding cutting unit, for enabling the operator to measure the length of the window blind from the reference line.

2. The window blind cutting machine as claimed in claim 1, wherein the number of said at least one measuring device is 2, and the two measuring devices are respectively disposed adjacent to the outer side of said cutting units.

3. The window blind cutting machine as claimed in claim 1, wherein the number of said at least one inner measuring rule is 2, and the two inner measuring rules are respectively extended from the reference line based on the cutting path of one of said cutting units toward the other of cutting units, having the respective true-zero disposed at the corresponding reference line.

4. The window blind cutting machine as claimed in claim 1, wherein said machine base is provided with at least one carriage, said at least one carriage being longitudinally movably mounted on said machine base and lockable to said machine base at a desired position for holding the window blind to be cut and moving the loaded window blind on said machine base in the direction along the longitudinal axis of said machine base.

5. The window blind cutting machine as claimed in claim 4, wherein the number of said at least one carriage is 2, and the two carriages are arranged in line along the longitudinal axis of said machine base.

6. The window blind cutting machine as claimed in claim 5, wherein each said carriage comprises an alignment plate for aligning one end of the window blind to be cut, and an index, said index and said alignment having same coordinates value on the longitudinal axis of said machine base, said index being disposed in close proximity to one said inner measuring rule for enabling the operator to read readings on the inner measuring rule indicated by said index.

7. The window blind cutting machine as claimed in claim 6, wherein each said carriage comprises a sliding bar movable relative to the respective carriage along the longitudinal axis of said machine base and lockable to the respective carriage in a desired position;

the alignment plate and index of each said carriage being disposed at the sliding bar of the respective carriage.

8. The window blind cutting machine as claimed in claim 7, wherein said sliding bar comprises a longitudinal sliding slot disposed in parallel to the longitudinal axis of said machine base, and two screw bolts respectively inserted through said longitudinal sliding slot and threaded into the respective carriage to lock said sliding bar to the respective carriage.

9. The window blind cutting machine as claimed in claim 7, wherein said alignment plate is movable in a transverse direction perpendicular to the longitudinal axis of said machine base and lockable to the respective sliding bar.

10. The window blind cutting machine as claimed in claim 9, wherein said alignment plate comprises a transverse sliding slot horizontally extending in the transverse direction perpendicular to the sliding slot of the corresponding sliding bar, and two screw bolts inserted through said transverse sliding slot and threaded into the corresponding sliding bar to adjustably lock said alignment plate to the corresponding sliding bar.

11. The window blind cutting machine as claimed in claim 4, wherein said machine base comprises two rails longitudinally arranged in parallel;

said at least one carriage each comprising a C-shaped clamping member longitudinally slidably coupled to one of said rails, and a lock mounted in said C-shaped clamping member for locking said C-shaped clamping member to the respective rail.

12. The window blind cutting machine as claimed in claim 4, wherein said at least one carriage each comprises a fixed clamping plate and a movable clamping plate disposed at a top side thereof and arranged in parallel to the longitudinal axis of said machine base, said fixed clamping plate being affixed to the respective carriage, said movable clamping plate being movable relative to said fixed clamping plate to adjust the pitch between said fixed clamping plate and said movable clamping plate for holding the window blind therebetween.

13. The window blind cutting machine as claimed in claim 1, wherein said at least one measuring device each comprises a base mounted on said machine base, a sliding bar slidably mounted to said base of said measuring device along the direction parallel to the longitudinal axis of said machine base, a stop plate affixed to one end of the sliding bar of the respective measuring device, and said outer measuring rule longitudinally formed integral with a top wall of the sliding bar of the respective measuring device.

14. A window blind cutting machine comprising:

a machine base for holding moveably a window blind to be cut along a direction parallel to a longitudinal axis of said machine base;

a cutting unit disposed at one end of said machine base, said cutting unit having a cutter movable along a cutting path across the longitudinal axis of said machine for cutting off a part of the window blind held on said machine base that protrudes over a reference line based on said cutting path;

a measuring device disposed at an outer side of said cutting unit, said measuring device having an outer measuring rule disposed in parallel to the longitudinal axis of said machine base for measuring the part of the window blind that protrudes over said reference line;

wherein said machine base is provided with an inner measuring rule disposed in parallel to the longitudinal axis of said machine base, said inner measuring rule extending from said cutting unit toward an opposite end of said machine base and having a true-zero disposed at the reference line of the cutting path of the cutting unit, for enabling the operator to measure the length of the window blind from the reference line.