# US 8,783,974 B2 · Photographic apparatus and case structure thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,783,974 B2 - Document ID: US8783974B2 - Status: Granted - Kind: B2 - Application number: 13/952,255 - Filed: 2013-07-26 - Published: 2014-02-06 - Granted: 2014-07-22 - Earliest claimed: 2012-08-01 - Assignees: Vivotek Inc. - Applicants: Vivotek Inc. - Inventors: Chih-Hao Chen - Web page: https://patentgrep.com/patent/US8783974B2 ## CPC - G08B 13/19619: {Details of casing} - G03B 17/08: Waterproof bodies or housings - G03B 17/561: {Support related camera accessories} - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) ## Abstract A case structure includes a main body, a cover and a seal. The main body has an accommodating space and an inner wall surface forming the accommodating space. The accommodating space has an opening. The main body includes at least two first fastening portions. The cover is assembled to the main body in a detachable way. The cover has a connection position and a lock position relative to the main body. The cover has an annular side wall surface and at least two second fastening portions. The seal is disposed around the annular side wall surface of the cover. One of each first fastening portion and each second fastening portion has a release section and a fastening section connected to each other. The other of each first fastening portion and each second fastening portion has a support arm and a block extended from the support arm. ## Claims ### Claim 1 A case structure comprising: a main body having an accommodating space and an inner wall surface forming the accommodating space, the accommodating space having an opening, the main body comprising at least two first fastening portions; a cover assembled to the main body in a detachable way, the cover having a connection position and a lock position relative to the main body, the cover having an annular side wall surface and at least two second fastening portions; and a seal disposed around the annular side wall surface of the cover; wherein one of each of the first fastening portions and each of the second fastening portions has a release section and a fastening section connected to each other, the other of each of the first fastening portions and each of the second fastening portions has a support arm and a block extended from the support arm, when the cover is at the connection position, the cover covers the opening, the two support arms are located on the two release sections respectively, and the seal is disposed between the inner wall surface and the annular side wall surface to form a waterproof space between the main body and the cover, and when the cover rotates an angle relative to the main body to move from the connection position to the lock position, the two support arms move from the two release sections to the two fastening sections respectively, and the two blocks are fastened with the two fastening sections, so as to make the cover be fixed to the main body. ### Claim 2 (depends on 1) The case structure according to claim 1, wherein the release section and the fastening section connected to each other are a fastening sliding groove. ### Claim 3 (depends on 1) The case structure according to claim 1, wherein the release section and the fastening section connected to each other are a lateral side of a fastening piece. ### Claim 4 (depends on 1) The case structure according to claim 1, wherein the annular side wall surface has a groove, and the seal is mounted in the groove. ### Claim 5 (depends on 4) The case structure according to claim 4, wherein the cover has a stop surface, the stop surface faces the main body and is connected to the annular side wall surface, the seal and the stop surface are separated by a distance, and when the cover is at the connection position, the stop surface is against an edge, which forms the opening, of the main body. ### Claim 6 (depends on 1) The case structure according to claim 1, wherein the angle is less than 180 degrees. ### Claim 7 (depends on 1) The case structure according to claim 1, wherein one of the main body and the cover has a connection position indicating portion and a lock position indicating portion, the other of the main body and the cover has a target indicating portion, wherein when the cover is at the connection position, the target indicating portion aims at the connection indicating portion, and when the cover rotates the angle relative to the main body and moves from the connection position to the lock position, the target indicating portion aims at the lock position indicating portion. ### Claim 8 A photographic apparatus comprising a main body having an accommodating space and an inner wall surface forming the accommodating space, the accommodating space having an opening, the main body comprising at least two first fastening portions; a cover assembled to the main body in a detachable way, the cover having a connection position and a lock position relative to the main body, the cover having an annular side wall surface and at least two second fastening portions; and a camera lens module assembled to the main body and located inside the accommodating space; wherein one of each of the first fastening portions and each of the second fastening portions has a release section and a fastening section connected to each other, the other of each of the first fastening portions and each of the second fastening portions has a support arm and a block extended from the support arm, when the cover is at the connection position, the cover covers the opening, the two support arms are located on the two release sections respectively, when the cover rotates an angle relative to the main body to move from the connection position to the lock position, the two support arms move from the two release sections to the two fastening sections respectively, and the two blocks are fastened with the two fastening sections, so as to make the cover be fixed to the main body. ### Claim 9 (depends on 8) The photographic apparatus according to claim 8, wherein the release section and the fastening section connected to each other are a fastening sliding groove. ### Claim 10 (depends on 8) The photographic apparatus according to claim 8, wherein the release section and the fastening section connected to each other are a lateral side of a fastening piece. ### Claim 11 (depends on 8) The photographic apparatus according to claim 8, further comprising a seal, wherein the annular side wall surface has a groove, and the seal is mounted in the groove. ### Claim 12 (depends on 11) The photographic apparatus according to claim 11, wherein the cover has a stop surface, the stop surface faces the main body and is connected to the annular side wall surface, the seal and the stop surface are separated by a distance, and when the cover is at the connection position, the stop surface is against an edge, which forms the opening, of the main body. ### Claim 13 (depends on 8) The photographic apparatus according to claim 8, wherein the angle is less than 180 degrees. ### Claim 14 (depends on 8) The photographic apparatus according to claim 8, wherein one of the main body and the cover has a connection position indicating portion and a lock position indicating portion, the other of the main body and the cover has a target indicating portion, wherein when the cover is at the connection position, the target indicating portion aims at the connection indicating portion, and when the cover rotates the angle relative to the main body and moves from the connection position to the lock position, the target indicating portion aims at the lock position indicating portion.