# US 12,111,677 B2 · Button, button assembly and alert device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,111,677 B2 - Document ID: US12111677B2 - Status: Granted - Kind: B2 - Application number: 18/061,017 - Filed: 2022-12-02 - Published: 2024-01-25 - Granted: 2024-10-08 - Earliest claimed: 2022-07-22 - Assignees: Wistron Corporation - Applicants: Wistron Corp. - Inventors: Chien-Hao Yuan; Hengmin Liu - Web page: https://patentgrep.com/patent/US12111677B2 ## CPC - G05G 1/02: Controlling members for hand actuation by linear movement, e.g. push buttons - G05G 5/04: Stops for limiting movement of members, e.g. adjustable stop (G05G5/03, G05G5/05, G05G5/28 take precedence) - G05G 5/05: Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops (G05G5/28 takes precedence) - H01H 13/14: Operating parts, e.g. push-button - H01H 13/85: characterised by tactile feedback features - H01H 13/86: characterised by the casing, e.g. sealed casings or casings reducible in size - G05G 2505/00: Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member - H01H 2221/026: Guiding or lubricating nylon - H01H 2221/044: Elastic part on actuator or casing - H01H 2221/058: to avoid tilting or skewing of contact area or actuator - G05G: CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms F16C1/10; gearings or mechanisms not peculiar to this purpose F16H; speed changing or reversing mechanisms for gearings conveying rotary motion F16H59/00 - F16H63/00) - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract An alert device includes a button assembly and an alert switch. The button assembly includes a casing and a button. The casing has a first through hole and a plurality of second through holes. The button includes a pressed part, an activation part and a plurality of hook parts. The pressed part has a central portion and a non-central portion, the non-central portion is connected to the central portion, the activation part is connected to the central portion, the plurality of hook parts are connected to the non-central portion, the activation part is disposed through the first through hole, and each of the plurality of hook parts is respectively disposed through each of the plurality of second through holes and is connected to the casing. The alert switch is disposed corresponding to the activation part. ## Claims ### Claim 1 A button assembly, for activating a switch, comprising: a casing, having a first through hole and a plurality of second through holes; a button, comprising a pressed part, an activation part and a plurality of hook parts, wherein the pressed part has a central portion and a non-central portion, the non-central portion is connected to the central portion, the activation part is connected to the central portion, the plurality of hook parts are connected to the non-central portion, the activation part is disposed through the first through hole, and each of the plurality of hook parts is respectively disposed through each of the plurality of second through holes, and the plurality of hook parts are connected to the casing; and a mount piece, mounted on the casing, wherein the plurality of hook parts are disposed through the mount piece and are directly engaged with the mount piece. ### Claim 2 (depends on 1) The button assembly according to claim 1, wherein the casing has a stopping surface, and at least part of each of the plurality of hook parts is located at one side of the casing located opposite to the stopping surface. ### Claim 3 (depends on 2) The button assembly according to claim 2, further comprising an elastic component, wherein the elastic component is disposed at the pressed part, and the pressed part is forced away from the stopping surface via the elastic component selectively. ### Claim 4 (depends on 1) The button assembly according to claim 1, wherein the pressed part has an outer annular edge, and a distance from each of the plurality of hook parts to the activation part is greater than a distance from each of the plurality of hook parts to the outer annular edge. ### Claim 5 (depends on 1) The button assembly according to claim 1, wherein each of the plurality of hook parts comprises a connection arm and a hook structure, the connection arm is connected to the non-central portion of the pressed part, and the hook structure protrudes from the connection arm. ### Claim 6 (depends on 5) The button assembly according to claim 5, wherein the pressed part has an outer annular edge, and the hook structure of each of the plurality of hook parts is entirely located in an area surrounded by an extension surface of the outer annular edge. ### Claim 7 (depends on 5) The button assembly according to claim 5, wherein the mount piece has a plurality of mounting holes, each of the plurality of mounting holes is respectively connected to each of the plurality of second through holes, each of the plurality of mounting holes has a released portion and an engagement portion connected to each other, the engagement portion has a width smaller than a width of the released portion, the connection arm of each of the plurality of hook parts is respectively disposed through the engagement portion of each of the plurality of mounting holes, and the hook structure of each of the plurality of hook parts is engaged with the mount piece. ### Claim 8 (depends on 7) The button assembly according to claim 7, wherein the casing has two guiding protrusions, the mount piece has two curved guiding holes, and the two guiding protrusions are located in the two curved guiding holes. ### Claim 9 (depends on 7) The button assembly according to claim 7, wherein a quantity of the plurality of hook parts of the button is four, a quantity of the plurality of second through holes of the casing is four, and a quantity of the plurality of mounting holes of the mount piece is four. ### Claim 10 (depends on 5) The button assembly according to claim 5, further comprising a mount piece connected to the casing, the mount piece has a through hole, an inner annular surface, a plurality of engagement protrusions and a plurality of mount recesses, the inner annular surface forms the through hole, the plurality of engagement protrusions protrude from the inner annular surface, each of the plurality of mount recesses is formed between two of the plurality of engagement protrusions located adjacent to each other, the connection arm of each of the plurality of hook parts is disposed through the through hole, and the hook structure of each of the plurality of hook parts is respectively engaged with each of the plurality of engagement protrusions. ### Claim 11 (depends on 1) The button assembly according to claim 1, wherein the mount piece has a plurality of mounting holes, each of the plurality of mounting holes is respectively connected to each of the plurality of second through holes, and the casing has a stopping surface, each of the plurality of hook parts is respectively disposed through each of the plurality of second through holes and each of the plurality of mounting holes, and at least part of each of the plurality of hook parts is located at one side of the casing located opposite to the stopping surface. ### Claim 12 An alert device, comprising: a button assembly, comprising: a casing, having a first through hole and a plurality of second through holes; a button, comprising a pressed part, an activation part and a plurality of hook parts, wherein the pressed part has a central portion and a non-central portion, the non-central portion is connected to the central portion, the activation part is connected to the central portion, the plurality of hook parts are connected to the non-central portion, the activation part is disposed through the first through hole, each of the plurality of hook parts is respectively disposed through each of the plurality of second through holes, and the plurality of hook parts are connected to the casing; and a mount piece, mounted on the casing, wherein the plurality of hook parts are disposed through the mount piece and are directly engaged with the mount piece; and an alert switch, disposed corresponding to the activation part. ### Claim 13 (depends on 12) The alert device according to claim 12, wherein the casing has a stopping surface, and at least part of each of the plurality of hook parts is located at one side of the casing located opposite to the stopping surface. ### Claim 14 (depends on 12) The alert device according to claim 12, wherein the pressed part has an outer annular edge, and a distance from each of the plurality of hook parts to the activation part is greater than a distance from each of the plurality of hook parts to the outer annular edge. ### Claim 15 (depends on 12) The alert device according to claim 12, wherein each of the plurality of hook parts comprises a connection arm and a hook structure, the connection arm is connected to the non-central portion of the pressed part, and the hook structure protrudes from the connection arm. ### Claim 16 (depends on 15) The alert device according to claim 15, wherein the pressed part has an outer annular edge, and the hook structure of each of the plurality of hook parts is entirely located in an area that is surrounded by an extension surface of the outer annular edge. ### Claim 17 (depends on 15) The alert device according to claim 15, wherein the mount piece has a plurality of mounting holes, each of the plurality of mounting holes is respectively connected to each of the plurality of second through holes, each of the plurality of mounting holes has a released portion and an engagement portion connected to each other, the engagement portion has a width smaller than a width of the released portion, the connection arm of each of the plurality of hook parts is respectively disposed through the engagement portion of each of the plurality of mounting holes, and the hook structure of each of the plurality of hook parts is engaged with the mount piece. ### Claim 18 (depends on 15) The alert device according to claim 15, wherein the mount piece has a through hole, an inner annular surface, a plurality of engagement protrusions and a plurality of mount recesses, the inner annular surface forms the through hole, the plurality of engagement protrusions protrude from the inner annular surface, each of the plurality of mount recesses is formed between two of the plurality of engagement protrusions which are located adjacent to each other, the connection arm of each of the plurality of hook parts is disposed through the through hole, and the hook structure of each of the plurality of hook parts is respectively engaged with each of the plurality of engagement protrusions. ### Claim 19 A button, comprising: a pressed part, having a central portion, a non-central portion and an outer annular edge, wherein the non-central portion is connected to the central portion, and the outer annular edge is connected to the non-central portion; an activation part, connected to the central portion; and a plurality of hook parts, connected to the non-central portion, wherein a distance from each of the plurality of hook parts to the activation part is greater than a distance from each of the plurality of hook parts to the outer annular edge; wherein each of the plurality of hook parts comprises a connection arm and a hook structure, the connection arm is connected to the non-central portion of the pressed part, and the hook structure protrudes from the connection arm, an extension direction of the connection arm from the non-central portion is different from a protruding direction of the hook structure from the connection arm, and a length that the hook structure protrudes from the connection arm is equal to or larger than 0.8 mm.