# US 2021/0276829 A1 · Elevator Door Engagement Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0276829 A1 - Document ID: US20210276829A1 - Status: Published application - Kind: A1 - Application number: 17/179,991 - Filed: 2021-02-19 - Published: 2021-09-09 - Earliest claimed: 2020-03-03 - Assignees: Fujitec Co., Ltd. - Applicants: Fujitec Co., Ltd. - Inventors: Hiroshi Kashiwakura - Web page: https://patentgrep.com/patent/US20210276829A1 ## CPC - B66B 13/12: Arrangements for effecting simultaneous opening or closing of cage and landing doors - B66B 13/20: Lock mechanisms actuated mechanically by abutments or projections on the cages - B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00) ## Abstract Provided is a door engagement device including an engaging body including an engaging part, the engaging part being configured to engage with an engaged part provided on a driven door that is either one of the landing door and the car door of an elevator, and transmit a driving force that moves a driving door in an opening and closing direction to the driven door, the driving door being the remaining one of the landing door and the car door; and a base that is connected to the driving door and the engaging body. The position of the engaging part is changeable relative to the base in an aligning direction, in which the landing door and the car door align with each other when the landing and car doors are opened and closed. ## Claims ### Claim 1 An elevator door engagement device configured to be mounted to an opposite surface of a car door facing a landing door or an opposite surface of the landing door facing the car door, the elevator door engagement device comprising: an engaging body comprising an engaging part, the engaging part being configured to engage with an engaged part provided on a driven door that is either one of the landing door and the car door, and transmit a driving force that moves a driving door in an opening and closing direction to the driven door, the driving door being the remaining one of the landing door and the car door; and a base that is connected to the driving door and the engaging body, wherein the position of the engaging part is changeable relative to the base in an aligning direction, in which the landing door and the car door align with each other when the landing doors and the car doors are opened and closed. ### Claim 2 (depends on 1) The elevator door engagement device according to claim 1, wherein the engaging body or the base has an elongated hole extending in the aligning direction, and the elevator door engagement device further comprises a fixing part that is configured to pass through the elongated hole to fix the engaging part so as to allow the position of the engaging part to be changeable with respect to the aligning direction. ### Claim 3 (depends on 2) The elevator door engagement device according to claim 2, wherein the engaging part comprises: a first engaging section that extends in a vertical direction; and a second engaging section that extends in the vertical direction and aligns with the first engaging section in the opening and closing direction so as to be able to clamp the engaged part in cooperation with the first engaging section, and the engaging body further comprises: an engagement support part that supports the engaging part, and comprises a first support section that supports the first engaging section and a second support section that supports the second engaging section; an interlock part that interlocks the first support section and the second support section together; and a link part that is provided between the engaging part and the base, and comprises: a first link section that connects the first engaging section to the base so as to allow the first engaging section to be movable relative to the base in the opening and closing direction; and a second link section that connects the second engaging section to the base so as to allow the second engaging section to be movable relative to the base in the opening and closing direction. ### Claim 4 (depends on 3) The elevator door engagement device according to claim 3, wherein the interlock part comprises an auxiliary restricting section that extends in the vertical direction and the aligning direction and is configured to be able to come into contact with the second engaging section to thereby restrict the second engaging section from moving in the opening and closing direction. ### Claim 5 (depends on 2) The elevator door engagement device according to claim 2, wherein the engaging part comprises: a first engaging section that extends in a vertical direction; and a second engaging section that extends in the vertical direction and aligns with the first engaging section in the opening and closing direction of the landing doors and the car doors so as to be able to clamp the engaged part in cooperation with the first engaging section, and the engaging body further comprises: an engagement support part that supports the engaging part, and comprises a first support section that supports the first engaging section and a second support section that supports the second engaging section, each of the first support section and the second support section is provided with a jack member that is configured to jack up the first support section and the second support section so as to allow the positions of the first support section and the second support section to be changeable with respect to the aligning direction, and the position of the engaging part is changeable with respect to the aligning direction through the jack-up of the first support section and the second support section by the jack member. ### Claim 6 (depends on 5) The elevator door engagement device according to claim 5, wherein the engaging body comprises an interlock part that interlocks the first support section and the second support section together, and the jack member is configured to jack up the interlock part at the time of the jack-up of the first support section and the second support section.