# US 2014/0192956 A1 · X-ray imaging apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192956 A1 - Document ID: US20140192956A1 - Status: Published application - Kind: A1 - Application number: 14/143,172 - Filed: 2013-12-30 - Published: 2014-07-10 - Earliest claimed: 2013-01-07 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Dae Soo Kim; Hyung Won Yoon; Jae Won Nam; Young Jun Lee - Web page: https://patentgrep.com/patent/US20140192956A1 ## CPC - A61B 6/4464: {the source unit or the detector unit being mounted to ceiling} - A61B 6/0464: {mounted to ceiling} - A61B 6/105: {Braking or locking devices} - A61B 6/4429: {related to the mounting of source units and detector units} - A61B 6/4482: {involving power assist circuits} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An X-ray imaging apparatus having an improved structure to reduce noise generated when a position of an X-ray generator is fixed in position includes an X-ray generator, an X-ray detector, a moving carriage coupled with one end of the X-ray generator, a guide rail, and a holding unit disposed at an inner side of the moving carriage to hold the position of the X-ray generator, wherein the holding unit includes a contact pad to contact the guide rail to hold the moving carriage, a magnetic body to move the contact pad using magnetic force, and a holding plate coupled to the contact pad to move according to operation of the magnetic body and including a buffer material capable of absorbing noise or vibration. ## Claims ### Claim 1 An X-ray imaging apparatus comprising: an X-ray generator to generate and emit X-rays; an X-ray detector to detect X-rays emitted from the X-ray generator; a moving carriage coupled with one end of the X-ray generator to adjust a position of the X-ray generator; a guide rail on which to move the moving carriage to change the position of the X-ray generator; and a holding unit disposed on the moving carriage to hold the position of the X-ray generator, wherein the holding unit comprises: a contact pad to contact the guide rail to hold the moving carriage; a magnetic body to move the contact pad using magnetic force; and a holding plate coupled to the contact pad to move according to operation of the magnetic body and comprising a noise-absorbing or vibration-reducing buffer material. ### Claim 2 (depends on 1) The X-ray imaging apparatus according to claim 1, wherein the holding plate comprises a plurality of layers, and at least one of the layers comprises a rubber material. ### Claim 3 (depends on 2) The X-ray imaging apparatus according to claim 2, wherein at least one of the layers of the holding plate comprises a magnetic material to enable the holding plate to move by movement of the magnetic body. ### Claim 4 (depends on 3) The X-ray imaging apparatus according to claim 3, wherein the at least one of the layers of the holding plate comprises steel. ### Claim 5 (depends on 4) The X-ray imaging apparatus according to claim 4, wherein the layers of the holding plate comprise a first steel layer contacting the magnetic body and a second steel layer contacting the contact pad, and a layer of rubber disposed between the first and second steel layers. ### Claim 6 (depends on 3) The X-ray imaging apparatus according to claim 3, wherein the layers of the holding plate comprise a magnetic layer contacting the magnetic body, and a non-magnetic layer contacting the contact pad. ### Claim 7 (depends on 1) The X-ray imaging apparatus according to claim 1, wherein the contact pad comprises urethane rubber. ### Claim 8 (depends on 1) The X-ray imaging apparatus according to claim 1, wherein the holding plate further comprises a first elastic member disposed between the holding plate and the magnetic body to move by more than a predetermined interval according to operation of the magnetic body. ### Claim 9 (depends on 1) The X-ray imaging apparatus according to claim 1, further comprising a bracket to accommodate the magnetic body and guide coupling with the moving carriage. ### Claim 10 (depends on 9) The X-ray imaging apparatus according to claim 9, further comprising at least one shaft to guide coupling between the holding plate and the bracket. ### Claim 11 (depends on 10) The X-ray imaging apparatus according to claim 10, further comprising a second elastic member to prevent the bracket from being spaced apart by more than a predetermined distance and at least one third elastic member coupled to an end of the at least one shaft to reduce vibration or noise of the holding unit. ### Claim 12 (depends on 1) The X-ray imaging apparatus according to claim 1, wherein the guide rail comprises a first guide rail and a second guide rail, the first and second guide rails being perpendicular to each other. ### Claim 13 (depends on 11) The X-ray imaging apparatus according to claim 11, wherein the holding unit is coupled to contact at least one of the first guide rail and the second guide rail. ### Claim 14 An X-ray imaging apparatus comprising: an X-ray generator to generate and emit X-rays; an X-ray detector to detect X-rays emitted from the X-ray generator; a guide rail to change a position of the X-ray generator; a moving carriage having a first end movably coupled to the guide rail and a second end coupled to the X-ray generator; a magnetic body disposed on the moving carriage; a contact pad having a first state to hold the moving carriage by contacting the guide rail according to operation of the magnetic body and a second state to move the moving carriage by being spaced apart from the guide rail; and a holding plate coupled to the contact pad and comprising a first magnetic layer contacting the magnetic body and a second magnetic layer contacting the contact pad, and a layer of a rubber material disposed therebetween to reduce vibration or noise so that the holding plate is spaced apart from the magnetic body in the first state and moves towards the magnetic body in the second state. ### Claim 15 (depends on 14) The X-ray imaging apparatus according to claim 14, further comprising a bracket to accommodate the magnetic body, a first elastic member disposed between the holding plate and the magnetic body to guide movement of the holding plate, and a second elastic member to prevent the magnetic body from being spaced apart from the guide rail by more than a predetermined distance. ### Claim 16 (depends on 15) The X-ray imaging apparatus according to claim 15, further comprising at least one shaft to couple the holding plate with the bracket and guide movement of the holding plate and at least one second elastic member coupled to an end of the shaft to reduce vibration and noise of the at least one shaft. ### Claim 17 (depends on 15) The X-ray imaging apparatus according to claim 15, wherein the magnetic material of the holding plate comprises steel. ### Claim 18 (depends on 14) The X-ray imaging apparatus according to claim 14, wherein the contact pad comprises urethane rubber. ### Claim 19 An X-ray imaging apparatus comprising: an X-ray generator to generate and emit X-rays; an X-ray detector to detect X-rays emitted from the X-ray generator; a guide rail to move at least one of the X-ray generator and the X-ray detector; and a holding unit to hold a position of at least one of the X-ray generator and the X-ray detector and installed to contact the guide rail, wherein the holding unit comprises: a contact pad to hold the X-ray generator by contacting the guide rail; a magnetic body to move the contact pad using magnetic force; and a holding plate coupled to the contact pad to move according to operation of the magnetic body, wherein the holding plate comprises three layers, the three layers comprising a first layer contacting the contact pad and a third layer contacting the magnetic body, the first and third layers comprising a magnetic material, and a second layer disposed between the first and third layers, the second layer comprising a viscoelastic material. ### Claim 20 (depends on 19) The X-ray imaging apparatus according to claim 19, wherein the contact pad has a first state to hold at least one of the X-ray generator and the X-ray detector by contacting the guide rail and a second state to move at least one of the X-ray generator and the X-ray detector by the contact pad spaced apart from the guide rail, by operation of the magnetic body. ### Claim 21 (depends on 19) The X-ray imaging apparatus according to claim 19, wherein the contact pad comprises urethane rubber. ### Claim 22 (depends on 19) The X-ray imaging apparatus according to claim 19, wherein the first and third layers of the holding plate are comprised of steel, and the second layer of the holding plate comprises a rubber material. ### Claim 23 (depends on 20) The X-ray imaging apparatus according to claim 20, further comprising at least one shaft to couple the holding plate with a bracket accommodating the magnetic body, a first elastic member coupled to the at least one shaft to move the holding plate to the first state from the second state, a second elastic member coupled to an outer side of the bracket, and a third elastic member coupled to an end of another shaft to reduce vibration and noise due to movement of the holding plate.