X-ray photography machine with selectively coupled flanges for pressing member movement

Patent metadata

Field	Value
Publication number	US-9492128-B2
Application number	US-201214650856-A
Country	US
Kind code	B2
Filing date	Dec 10, 2012
Priority date	Dec 10, 2012
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

Disclosed herein is an X-ray photography machine ( 300 ). The X-ray photography machine includes a transfer apparatus ( 370 ) which moves a pressing member ( 360 ) which presses a target. The transfer apparatus includes a drive source ( 371 ), a drive shaft ( 374 ) which is rotated by the drive force of the drive source, first and second pulleys ( 375 a,b ) which convert rotational force of the drive shaft into force by which the pressing member is moved, and first and second flanges ( 379 a,b ) which make the first pulley depend on the rotational force of the drive shaft. In the present invention, because only a single drive shaft is used to move the pressing member, problems such as the occurrence of noise can be minimized.

First claim

The invention claimed is:

1. An X-ray photography machine, comprising:
a generator emitting an X-ray onto a target;
a detector sensing the X-ray that has penetrated the target;
a pressing member disposed between the generator and the detector; and
a transfer apparatus moving the pressing member towards or away from the detector,
wherein the transfer apparatus includes a drive source for providing a rotational force;
a drive shaft rotated by the rotational force;
a first flange fitted on the drive shaft;
a second flange provided around the drive shaft with a space defined therebetween, the second flange being selectively coupled to the first flange; and
a switch belt connected to the second flange, with the pressing member fastened to the switch belt.

2. The X-ray photography machine as set forth in claim 1 , wherein either the first flange or the second flange selectively generates a magnetic force depending on supply of power, and a remaining one of the first flange and the second flange is magnetically coupled to the either the first flange or the second flange.

3. The X-ray photography machine as set forth in claim 1 , further comprising a first pulley provided around the drive shaft with a space defined therebetween, the first pulley being coupled to the second flange, wherein the switch belt is connected to the first pulley.

4. The X-ray photography machine as set forth in claim 3 , further comprising:
a second pulley spaced apart from a first pulley by a predetermined distance with respect to a direction in which the pressing member moves, wherein the switch belt connects the first pulley to the second pulley.

5. The X-ray photography machine as set forth in claim 3 , further comprising:
a drive pulley connected to the drive source;
a driven pulley coupled to the drive shaft; and
a drive belt connecting the drive pulley to the driven pulley.

Assignees

• Rayence Co Ltd

Inventors

• Lee Chang Hwa
• Son Min Ho

Classifications

• A61B6/502

  for diagnosis of breast, i.e. mammography · CPC title

• A61B6/4441

  the rigid structure being a C-arm or U-arm · CPC title

• A61B6/0414 Primary

  with compression means · CPC title

• A61B6/54

  Control of apparatus or devices for radiation diagnosis · CPC title

• A61B6/44

  Constructional features of apparatus for radiation diagnosis · CPC title