Cutting machine for window coverings

Patent metadata

Field	Value
Publication number	US-RE47416-E
Application number	US-201715638077-A
Country	US
Kind code	E1
Filing date	Jun 29, 2017
Priority date	Mar 28, 2013
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

A cutting machine for cutting components of window coverings has a machine base, a first cutting unit, a first restricting unit, a second cutting unit, and a second restricting unit. The first cutting unit and the second cutting unit are provided on the machine base. The first cutting unit is designed to cut a horizontal top rail, a horizontal bottom rail and horizontal slats of a venetian blind, and a vertical top rail of a vertical blind; the second cutting unit is designed to cut vertical slats of the vertical blind. The first and the second restricting units are designed to hold the components to be cut at specified positions by the first and the second cutting units.

First claim

What is claimed is:

1. A cutting machine for cutting components of window coverings, wherein the components of the window coverings include a horizontal top rail, a horizontal bottom rail and horizontal slats of a venetian blind, and a vertical top rail and vertical slats of a vertical blind, the cutting machine comprising:
a machine base for the components, which is a substantially elongated member, which has a long axis and a short axis, wherein the machine base has a first side and a second side parallel to the short axis, and has a third side and a fourth side parallel to the long axis;
a first cutting unit, which is provided on the machine base and adjacent to the first side, including a base, a slat holding device, a cutter device, and a driving device;
the base having a first bore and a first positioning bore to receive the horizontal slats and the horizontal top rail respectively;
the slat holding device having a pressing block and a pushing member, wherein the pressing block is movably received in the first bore of the base and has a bore to receive the horizontal bottom rail;
the pushing member moves the pressing block toward the first positioning bore;
the cutter device, which is movably provided on the base, having a first cutter and a second cutter which are adjacent to the first bore and the first positioning bore respectively, and the first cutter is used to cut off the horizontal slats and the horizontal bottom rail, the second cutter is used to cut off the horizontal top rail; and
the driving device having a connecting member and an operating member, wherein the connecting member is connected to the cutter device, and the operating member is connected to the connecting member to move the cutter device; and
a second cutting unit, which is movably mounted on the machine base, comprising a frame, a cutter, and a controller;
the frame, which is movably provided on the machine base for a movement along the long axis of the machine base;
the cutter, which is movably provided in the frame, wherein a second bore is formed between the cutter and the frame to receive the vertical slats; and
the controller, which is connected to the cutter to move the cutter;
wherein the frame has a movable base and two rails; the movable base is movably mounted on the machine base, and the rails are connected to the movable base; the rails are vertical to the movable base and are parallel to the short axis of the machine base; the cutter is provided between the rails with opposite sides engaging the rails; and the controller moves the cutter to move in the rail to cut the vertical slats.

2. The cutting machine as defined in claim 1 , wherein the pushing member of the slat holding device of the first cutting unit has a block, a shaft, and a flexible member; the block is connected to the connecting member; the block has an opening, and the base has an opening; the shaft is received in the opening of the block and passes through the opening of the base to connect to the pressing block; the flexible member is provided on the shaft and is between the block and the base to move the pressing block.

3. The cutting machine as defined in claim 2 , wherein the shaft has a protrusion at a side adjacent to the pressing block; the protrusion is outside of the base; and the flexible member is between the protrusion and the block.

4. The cutting machine as defined in claim 1 , wherein the cutter is provided with a slot parallel to the short axis of the machine base; and the controller includes a sliding block, a linkage, and a control bar; the sliding block is received in the slot of the cutter to move in the slot; the linkage is pivoted on the sliding block; and the control bar is pivoted on the frame and engages the linkage, whereby when the control bar is moved, the cutter is moved via the linkage and the sliding block.

5. The cutting machine as defined in claim 1 , further comprising a second restricting unit which has a fixing base and a restricting board; the fixing base is connected to the second side of the machine base, and the restricting board is movably provided on the fixing base to move along the long axis of the machine base.

6. The cutting machine as defined in claim 1 , further comprising a first restricting unit provided on the machine base, wherein the first restricting unit is closer to the first side than the first cutting unit; the first restricting unit has a stop device, a transmitting device, and a fixing device; the stop device is beside the first cutting unit; the transmitting device is connected to the stop device and the driving device; when the driving device moves the cutter device along the short axis of the machine base, the driving device moves the stop device between a first position and a second position, wherein the first position is closer to the cutter device than the second position; at the first position, the stop device rests against ends of the horizontal bottom rail and the horizontal slats in the first bore and the horizontal top rail in the first positioning bore; the fixing device is connected to the machine base; the transmitting device rests against the fixing device when the stop device is at the first position, and the transmitting device leaves the fixing device when the stop device moves toward the second position from the first position.

7. The cutting machine as defined in claim 6 , wherein the transmitting device has a transmitting board, a transmitting shaft, a first supporting shaft, a second supporting shaft, and a locking member; the transmitting board is pivoted on the machine base through an axle; the transmitting board has a slot; the transmitting shaft has an end connected to the connecting member of the driving device to move with the cutter device; the transmitting shaft has a post on an opposite end to engage the slot of the transmitting board; the first supporting shaft has an end fixed to the machine base and an opposite end engaging the stop device, whereby the stop device is free to move between the first position and the second position relative to the first supporting shaft; the second supporting shaft has an end passing through the base and an opposite end pivoted on the transmitting board; the locking member is connected to the second supporting shaft; the locking member is provided with a scale to secure the stop device at a specific position; when the driving device moves the cutter device and the transmitting shaft, the post moves in the slot to swing the transmitting board and move the second supporting shaft in a direction away from the base, as a result, the stop device is moved in a direction away from the first bore and the first positioning bore.

8. The cutting machine as defined in claim 7 , wherein the transmitting board of the transmitting device is closer to the first cutting unit than the fixing device of the first restricting member to be moved to rest against or leave the fixing device.

9. The cutting machine as defined in claim 1 , wherein the connecting member of the driving device is a rack; the rack has teeth meshed with a gear set; and the gear set is connected to the operating member.

10. The cutting machine as defined in claim 1 , wherein the base is further provided with a second positioning bore adjacent to the first positioning bore to receive the vertical top rail; the first bore, the first positioning bore and the second positioning bore are located in order along the short axis of the machine base; the cutter device further has a third cutter beside the second positioning bore to cut the vertical top rail.

11. A cutting device for cutting window coverings, comprising:
a machine base, which is a substantially elongated member;

Assignees

• Nien Made Entpr Co Ltd

Inventors

• Lee Wen-Yeu

Classifications

• E06B9/266 Primary

  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 title

• Y10T83/7487

  Means to clamp work · CPC title

• E06B9/66 Primary

  with a roller situated at the bottom · CPC title