# US 5,708,892 A · Support structure of a focal plane shutter in a camera > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,708,892 A - Document ID: US5708892A - Status: Granted - Kind: A - Application number: 08/811,532 - Filed: 1997-03-04 - Granted: 1998-01-13 - Earliest claimed: 1996-03-04 - Assignees: Nikon Corporation - Inventors: Yasuhiko Kon - Web page: https://patentgrep.com/patent/US5708892A ## CPC - G03B 9/42: with adjustable slot; with mechanism controlling relative movement of plates to form slot - G03B 9/18: More than two members - 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 support structure of a focal plane shutter in a camera reduces the effects of impacts or vibrations accompanying opening and closing movements of a shutter such that the impacts or vibrations do not reach a camera body. The support structure includes a shutter baseplate which is mounted and floats with respect to the camera body. The shutter baseplate supports a number of light barrier members which move in a travel direction to expose photographic film. The shutter baseplate is movable in the travel direction by a pair of retaining members. The position of the shutter baseplate is set by a position setting member which is fixed to the shutter baseplate and is retained by a vibration absorbing member disposed in the camera body. Buffer members are disposed between upper and lower ends of the shutter baseplate and the camera body such that impacts or vibrations which accompany the opening and closing operation of the shutter do not reach the camera body via the shutter baseplate. ## Claims ### Claim 1 A support structure of a focal plane shutter in a camera, comprising: a camera body; a plurality of light barrier members to move in a travel direction with respect to said camera body; a shutter baseplate supporting said light barrier members and movable in the travel direction; a first buffer member disposed between a first side of said shutter baseplate and said camera body in the travel direction; and a second buffer member disposed between a second side of said shutter baseplate and said camera body in the travel direction. ### Claim 2 (depends on 1) The support structure according to claim 1, further comprising: a position setting member connected between said camera body and said shutter baseplate to thereby set a position of said shutter baseplate with respect to said camera body. ### Claim 3 (depends on 2) The support structure according to claim 2, further comprising: a retaining member connected to said camera body and said shutter baseplate, wherein said retaining member restricts movement of said shutter baseplate to the travel direction. ### Claim 4 (depends on 3) The support structure according to claim 3, further comprising: a setting member which applies a shutter charging force to open said light barrier members, wherein the direction of the shutter charging force is orthogonal to the travel direction of said plurality of light barrier members. ### Claim 5 (depends on 2) The support structure according to claim 2, further comprising: a vibration absorbing member disposed within said camera body and receiving said position setting member, wherein said vibration absorbing member absorbs vibration produced by said plurality of light barrier members during movement in the travel direction. ### Claim 6 (depends on 1) The support structure according to claim 1, further comprising: a vibration absorbing member disposed within said camera body, wherein said vibration absorbing member absorbs vibration produced by said plurality of light barrier members during movement in the travel direction. ### Claim 7 (depends on 6) The support structure according to claim 6, further comprising: a retaining member connected to said camera body and said shutter baseplate, wherein said retaining member restricts movement of said shutter baseplate to the travel direction. ### Claim 8 (depends on 7) The support structure according to claim 7, further comprising: a setting member which applies a shutter charging force to open said light barrier members, wherein the direction of the shutter charging force is orthogonal to the travel direction of said light barrier members. ### Claim 9 (depends on 1) The support structure according to claim 1, further comprising: a retaining member connected to said camera body and said shutter baseplate, wherein said retaining member restricts movement of said shutter baseplate to the travel direction. ### Claim 10 (depends on 9) The support structure according to claim 9, further comprising: a setting member which applies a shutter charging force to open said light barrier members, wherein the direction of the shutter charging force is orthogonal to the travel direction of said light barrier members. ### Claim 11 (depends on 1) The support structure according to claim 1, wherein the camera has an optical axis direction orthogonal to the travel direction, said support structure further comprising: a slot disposed within said camera body; and an insert protruding from said shutter baseplate and received within said slot to thereby limit movement of said shutter baseplate in the optical axis direction. ### Claim 12 A camera support structure, comprising: a camera body; a light barrier member to move in a travel direction with respect to said camera body; a shutter baseplate supporting said light barrier member and movable in the travel direction; and a retaining member connected to said camera body and said shutter baseplate, wherein said retaining member restricts movement of said shutter baseplate to the travel direction. ### Claim 13 (depends on 12) The camera support structure according to claim 12, wherein said shutter baseplate has a slotted hole and said retaining member passes through said slotted hole to connect with said camera body. ### Claim 14 (depends on 13) The camera support structure according to claim 13, wherein said retaining member is a stepped screw including: a male screw portion, a large diameter portion, and a head portion, wherein the male screw portion is threaded into a corresponding threaded hole within said camera body and the large diameter portion slidably connects with the slotted hole. ### Claim 15 (depends on 12) The camera support structure according to claim 12, further comprising: a first buffer member disposed between a first side of said shutter baseplate and said camera body in the travel direction; and a second buffer member disposed between a second side of said shutter baseplate and said camera body in the travel direction. ### Claim 16 (depends on 12) The camera support structure according to claim 12, further comprising: a position setting member connected between said camera body and said shutter baseplate to thereby set a position of said shutter baseplate with respect to said camera body. ### Claim 17 (depends on 12) The camera support structure according to claim 12, further comprising: a setting member which applies a shutter charging force to open said light barrier member, wherein the direction of the shutter charging force is orthogonal to the travel direction of said plurality of light barrier member. ### Claim 18 (depends on 12) The camera support structure according to claim 12, further comprising: a position setting member connected between said camera body and said shutter baseplate to thereby set a position of said shutter baseplate with respect to said camera body; and a vibration absorbing member disposed within said camera body and receiving said position setting member, wherein said vibration absorbing member absorbs vibration produced by said plurality of light barrier members during movement in the travel direction. ### Claim 19 A support structure of an optical focal plane shutter, comprising: a body; a plurality of light barrier members to move in a travel direction with respect to said body; a shutter baseplate supporting said light plurality of barrier members and movable in the travel direction; a first buffer member disposed between a first side of said shutter baseplate and said body in the travel direction; a second buffer member disposed between a second side of said shutter baseplate and said body in the travel direction; a position setting member connected between said body and said shutter baseplate to thereby set a position of said shutter baseplate with respect to said body; and a retaining member connected to said body and said shutter baseplate, wherein said retaining member restricts movement of said shutter baseplate to the travel direction. ### Claim 20 (depends on 19) The support structure according to claim 19, further comprising: a setting member which applies a shutter charging force to open said light barrier members, wherein the direction of the shutter charging force is orthogonal to the travel direction.