# US 2009/0260465 A1 · Portable terminal of slide-down opening and closing type > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2009/0260465 A1 - Document ID: US20090260465A1 - Status: Published application - Kind: A1 - Application number: 12/492,011 - Filed: 2009-06-25 - Published: 2009-10-22 - Earliest claimed: 2006-12-29 - Assignees: Laird Technologies MAP Co., Ltd. - Inventors: Kwang Duck Park - Web page: https://patentgrep.com/patent/US20090260465A1 ## CPC - H04M 1/0237: {Sliding mechanism with one degree of freedom} - Y10T 74/18896: Snap action - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A portable terminal generally includes a first or main body and a second or sub-body. The sub-body is slidable relative to the main body between a closed position and an opened position. The sub-body is configured to drop downwardly into a stepped-down portion of the main body when the sub-body is in the opened position. At least one biasing device or elastic means may be provided for applying a force for biasing the sub-body to drop downwardly towards the stepped-down portion. ## Claims ### Claim 1 A slider mechanism for a portable terminal having a first body, a second body slidable relative to the first body between a closed position and an opened position, the first body including a stepped-down portion, the second body configured to be dropped downwardly into the stepped-down portion when the sub-body is slidably moved to the opened position, the slider mechanism comprising: a horizontal sliding plate configured to be coupled to the second body of the portable terminal; an up-down sliding plate configured to be slidably coupled to the horizontal sliding plate, and configured to be coupled to the first body of the portable terminal; a support plate configured to be installed in the stepped-down portion of the main body; and at least one biasing device for applying a force for biasing the up-down sliding plate downwardly towards the stepped-down portion. ### Claim 2 (depends on 1) The slider mechanism of claim 1, wherein the at least one biasing device comprises at least one torsion spring. ### Claim 3 (depends on 1) The slider mechanism of claim 1, wherein: the up-down sliding plate includes fastening protrusions on generally opposite sides of the up-down sliding plate; the support plate includes second fastening protrusions and sliding grooves on generally opposite sides of the support plate, each sliding groove having an upper portion that is opened; the first fastening protrusions are slidable along the corresponding sliding grooves of the support plate; and the at least one biasing device comprises at least two torsion springs coupled to corresponding pairs of the first and second fastening protrusions on the generally opposite sides of the up-down sliding plate and support plate. ### Claim 4 (depends on 1) The slider mechanism of claim 1, further comprising at least one horizontal movement spring between the horizontal sliding plate and the up-down sliding plate, whereby the horizontal movement spring is configured to be compressed and restored while the second body slides relative to the first body between the open and closed positions. ### Claim 5 (depends on 1) The slider mechanism of claim 1, wherein: the up-down sliding plate includes at least one first fastening protrusion on at least one side of the up-down sliding plate; the support plate includes at least one second fastening protrusion and a sliding groove on at least one side of the support plate, the sliding groove having an upper portion that is opened; the biasing device is coupled to the first and second fastening protrusions; and the first fastening protrusion is slidable along the sliding groove of the support plate. ### Claim 6 (depends on 5) The slider mechanism of claim 5, wherein the sliding groove is oblique. ### Claim 7 (depends on 1) The slider mechanism of claim 1, wherein: the up-down sliding plate includes at least one downward stopper protruding downwardly from the up-down sliding plate; and the support plate includes at least one insertion hole into which the downward stopper may be inserted. ### Claim 8 (depends on 7) The slider mechanism of claim 7, wherein: the downward stopper includes a guide protrusion on a side of the downward stopper; and the support plate includes a guide groove on a side of the support plate into which the guide protrusion may be inserted. ### Claim 9 (depends on 7) The slider mechanism of claim 7, wherein the downward stopper is tapered downward. ### Claim 10 (depends on 1) A portable terminal comprising the slider mechanism of claim 1. ### Claim 11 A slide-down type portable terminal comprising: a main body having a stepped-down portion; a sub-body slidable relative to the main body between a closed position and an opened position, the sub-body configured to drop downwardly into the stepped-down portion of the main body when the sub-body is in the opened position; and at least one elastic means for applying an elastic force for biasing the sub-body to drop downwardly towards the stepped-down portion. ### Claim 12 (depends on 11) The portable terminal of claim 11, wherein the at least one elastic means comprises at least one torsion spring. ### Claim 13 (depends on 11) The portable terminal of claim 11, further comprising a sliding assembly installed between the sub-body and the main body for allowing the sub-body to slide relative to the main body, wherein the sliding member comprises: an up-down sliding plate configured to guide the sub-body to be slid horizontally, the up-down sliding plate being slidable in an up-down direction; and a support plate installed in the stepped-down portion of the main body, the support plate configured to guide the sliding of the up-down sliding plate in an up-down direction. ### Claim 14 (depends on 13) The portable terminal of claim 13, wherein the sliding assembly further comprises a horizontal sliding plate coupled to the sub-body, and wherein the up-down sliding plate is configured to guide the sliding of the horizontal sliding plate. ### Claim 15 (depends on 14) The portable terminal of claim 14, further comprising at least one horizontal movement spring between the horizontal sliding plate and the up-down sliding plate, whereby the horizontal movement spring is configured to be compressed and restored while the sub-body slides relative to the main body between the open and closed positions. ### Claim 16 (depends on 13) The portable terminal of claim 13, wherein: the up-down sliding plate includes at least one first fastening protrusion on at least one side of the up-down sliding plate; the support plate includes at least one second fastening protrusion and a sliding groove on at least one side of the support plate, the sliding groove having an upper portion that is opened; the elastic means is coupled to the first and second fastening protrusions; and the first fastening protrusion is slidable along the sliding groove of the support plate. ### Claim 17 (depends on 11) The portable terminal of claim 11, further comprising a support protrusion on a side portion of the main body up to the stepped-down portion, the support protrusion supporting the sub-body to avoid the sub-body from being dropped when the sub-body is being closed. ### Claim 18 (depends on 11) The portable terminal of claim 11, wherein the stepped-down portion of the main body includes a groove into which the support plate is inserted and seated. ### Claim 19 (depends on 11) The portable terminal of claim 11, wherein: a top surface of the main body is disposed generally under the sub-body when the sub-body is in the closed position; and the top surface of the main body is generally aligned with a top surface of the sub-body when the sub-body is in the opened position. ### Claim 20 A portable terminal comprising: a first body having a stepped-down portion; a second body slidable relative to the first body between a closed position and an opened position, the second body configured to drop downwardly into the stepped-down portion of the first when the second body is in the opened position; an up-down sliding plate coupled to the first body, the up-down sliding plate including fastening protrusions on generally opposite sides of the up-down sliding plate; a horizontal sliding plate coupled to the second body, and slidably coupled to the up-down sliding plate; a support plate installed in the stepped-down portion of the first body, the support plate including second fastening protrusions and sliding grooves on generally opposite sides of the support plate, the sliding grooves having opened upper portions for slidably receiving the corresponding first fastening protrusions; and at least two torsion springs coupled to corresponding pairs of the first and second fastening protrusions on the generally opposite sides of the up-down sliding plate and support plate.