# US 5,702,168 A · Apparatus for damping a door of refrigerator being open and/or closed > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,702,168 A - Document ID: US5702168A - Status: Granted - Kind: A - Application number: 08/715,242 - Filed: 1996-09-18 - Granted: 1997-12-30 - Earliest claimed: 1995-09-18 - Assignees: Daewoo Electronics Co., Ltd. - Inventors: Jun-Chul Shin - Web page: https://patentgrep.com/patent/US5702168A ## CPC - F25D 17/047: {Pressure equalising devices} - F25D 23/028: {Details} - F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B) ## Abstract A damping apparatus for a refrigerator has a first space formed in the interior of a cabinet of the refrigerator, a second space which is separated from the first space by a stopping protrusion and is in communication relation with the first space, a first damping member expandably mounted in the second space, and a protrusion formed on one side of a door for closing the first damping member. When the door is pivoted to be closed, the protrusion closes the first damping member so that the air in the interior of the first damping member is exhausted outside, dampening the reactive force generated in a compartment. On the other hand, when the door is pivoted to be opened, the second damping member is pressed so that the force by the negative pressure in the interior of the compartment is dampened. The damping apparatus for a refrigerator can dampen the force needed when the door is opened or closed. ## Claims ### Claim 1 A damping apparatus for a refrigerator comprising: a cabinet having side walls, a base plate, an upper plate, and a rear plate so as to form at least one compartment, a front of which is open, wherein an interior of said cabinet is filled with an insulating material, first and second spaces are formed in the interior of one of the side walls, a stopping protrusion is formed between the first and second spaces, and a slit which extends from an inner surface of the second space to a front surface of the side wall is formed so that the first and second space are in communicating relation with each other; a door pivotally mounted on said cabinet so as to be closed or opened, wherein a protrusion for closing the first space is formed; and damping means which is slidably and expandably mounted so as to dampen a reactive force generated by air between the compartment and said door when said door is opened and so as to dampen a negative pressure generated by the cooling of air in the compartment when said door is opened, wherein said damping means comprises a first damping member slidably mounted in the first space, wherein both ends thereof are open, a first end thereof is closed when the protrusion of said door is closed, an exhausting protrusion which slides in the first space and which is stopped by the stopping protrusion is formed and a first exhausting hole for exhausting the air of the interior thereof is formed in the exhausting protrusion, and a second damping member slidably mounted in the second space and connected to a second end of the first damping member, wherein a second exhausting hole for exhausting the air in the interior thereof is formed. ### Claim 2 (depends on 1) A damping apparatus according to claim 1, wherein the first damping member is comprised of a synthetic resin. ### Claim 3 (depends on 1) A damping apparatus according to claim 1, wherein the second damping member is comprised of rubber. ### Claim 4 (depends on 1) A damping apparatus according to claim 1, wherein a buffer space which provides a space for exhausting an interior of the second space is formed in one of the side walls, a first orifice is formed so that the buffer space is in communicating relation with the second space by the first orifice, and a second orifice is formed so that the buffer space is in communicating relation with the outside of the refrigerator through the second orifice, and wherein said damping means comprises a first damping member slidably mounted in the first space, wherein both ends thereof are open, a first end thereof is closed when the protrusion of said door is closed, an exhausting protrusion which slides in the first space and which is stopped by the stopping protrusion is formed, and a first exhausting hole for exhausting the air of the interior thereof is formed in the exhausting protrusion; a second damping member slidably mounted in the second space and connected to a second end of the first damping member, wherein a second exhausting hole for exhausting the air in the interior thereof is formed. ### Claim 5 (depends on 4) A damping apparatus according to claim 4, wherein the first damping member is comprised of a synthetic resin. ### Claim 6 (depends on 4) A damping apparatus according to claim 4, wherein the second damping member is comprised of rubber. ### Claim 7 A damping apparatus for a refrigerator comprising: a cabinet having side walls, a base plate, an upper plate, and a rear plate so as to form at least one compartment, the front of which is open, wherein an interior of said cabinet is filled with an insulating material, first and second spaces are formed in the interior of one of the side walls, a stopping protrusion is formed between the first and second spaces, a buffer space which provides a space for exhausting an interior of the second space is formed in one of the side walls, a first orifice is formed so that the buffer space is in communicating relation with the second space by the first orifice, a second orifice is formed so that the buffer space is in communicating relation with the outside of the refrigerator through the second orifice, and a slit which extends from an inner surface of the second space to a front surface of the side wall is formed so that the first and second spaces are in communicating relation with each other; a door pivotally mounted on said cabinet so as to be closed or opened, wherein a protrusion for closing the first space is formed; damping means which is slidably and expandably mounted so as to dampen the reactive force generated by air between the compartment and said door when said door is opened and so as to dampen the negative pressure generated by the cooling of the air in the compartment when said door is opened, the damping means comprising a first damping member slidably mounted in the first space, wherein both ends thereof are open, a first end thereof is closed when the protrusion of said door is closed, an exhausting protrusion which slides in the first space and which is stopped by the stopping protrusion is formed, and a first exhausting hole for exhausting the air of the interior thereof is formed in the exhausting protrusion; a second damping member slidably mounted in the second space and connected to a second end of the first damping member, wherein a second exhausting hole for exhausting the air in the interior thereof is formed.