CN86210364U

CN86210364U - Program controlling mechanism for reflecting camera with single camera lens

Info

Publication number: CN86210364U
Application number: CN 86210364
Authority: CN
Inventors: 张国栋
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-12-13
Filing date: 1986-12-13
Publication date: 1987-09-23

Abstract

The utility model uses a shutter between lenses and can change the program control mechanism of the single-lens reflex camera of a view finder, the lenses and a back. The utility model adopts a circular main control board to connect with the other mechanisms to enable the mechanisms can be tightened and released after a trigger is triggered and thus the action program control mechanism of a light screen, a reflecting plate and a shutter, an aperture control mechanism, a speed reducing mechanism and an interlocking mechanisms conduct action by the function of the circular main control board. The control mechanism can effectively conduct the action program control of the reflecting board and the light screen. The interlocking linkage performance among each mechanism is excellent. The structure is simple and reliable.

Description

Program controlling mechanism for reflecting camera with single camera lens

The invention belongs to the control gear of camera.

Original Single-sens reflex camera, all employing between-lens shutters, when moving, reflector enters veiling glare from view finder, all in machine, be provided with shadow shield, make reflector and shadow shield when action be arranged a mistiming, at first shadow shield action is keeping off egative film when tightening shutter, reflector action then, aperture is opened greatly, and fast door leaf sheet is opened, in order to the focusing of finding a view, after pressing shutter release button, fast door leaf sheet closure, aperture dwindles, and reflector raises up, the shadow shield action, the shutter breakdown is finished single exposure.

With regard to reflector, shadow shield operation program control method, original Single-sens reflex camera most representative as: Haas Bo Laite (Hassedlad), Bo Langnika (B-ronica), Ma Miya (Mamiya) adopt gear type, curve slide type and three kinds of methods of regulations and parameters rod-type respectively, the control gear of realizing these control methods all have complicated tighten, release, chain and operation program control gear.Thereby the structure more complicated, manufacturing, maintenance difficult cost an arm and a leg.

The objective of the invention is to provides a kind of interlocking performance good for the Single-sens reflex camera that uses between-lens shutter, and function is more, but reflector simple and reliable for structure and shadow shield, the sequence control of shutter and aperture action.

Main points of the present invention are: designed the main control unit of a circle, by it with, each mechanism has an effect, and below in conjunction with accompanying drawing detailed structure of the present invention is described.

Fig. 1 is the state one-piece construction synoptic diagram that tightens of the present invention

Fig. 2 is a release conditions one-piece construction synoptic diagram of the present invention

Fig. 3 is the camera synoptic diagram that utilizes sequence control of the present invention to make

As shown in Figure 1: main control unit (1) is contained on the axle (2), axle (2) then is supported on the body (53), have the hole (1a) of an almost fan on the main control unit card, the circular arc limit in this hole is concentric with main control unit, main control unit links by this hole and cocking mechanism, near on the edge of scallop hole an overhanging arm (1b) is being arranged, there is a clubfoot its end, one inclined-plane is arranged under clubfoot, main control unit links by this overhanging arm and releasing mechanism and interlock mechanism, at the plate edge place relative one section gear teeth (1c) are arranged with circular arc on the scallop hole, it links to each other with reducing gear, at one side plate edge one projection (1d) is arranged near this section gear teeth, its top and interlock mechanism link, near this section gear teeth another side, have a radial slot (1e), it and shutter, the aperture control gear links, there is being an aperture (1f) to hang in this hole near the radial slot around main spring (3) one ends on the axle (2), the other end and body link, respectively there is a bottom and (1h) for circular groove (1g) on the next door of overhanging arm and projection (1d), overhanging arm, projection, two grooves and the circular arc between them link with reflector and shadow shield by shadow shield roller bearing (37) and reflector roller bearing (40), and constituted the operation program control gear of reflector and shadow shield, near scallop hole, have a circular hole (1i), bossing on the main control unit catch (24) hangs in the hole, hang with spring on the catch, the main control unit catch then uses screw (25) to be connected on the main control unit between scallop hole (1a) and the circular hole (1i).

The described cocking mechanism that links with main control unit comprises removes handle (4), main shaft (5), dial arm (7), fan-shaped ratchet (48) and ratchet (45), main shaft flatly is contained on the body, and run through the body left and right sides, be fixed with in one end end and remove handle (4), the other end is equipped with fan-shaped ratchet (48), hang with extension spring (49) on the ratchet, the other end of extension spring is fixed on the body, one ratchet (45) is arranged on the top of ratchet, it is contained on the axle (46), axle then is fixed on the body, the afterbody of ratchet hangs with extension spring (47), is fixed with group arm (7) near an end of removing handle on main shaft, and the other end of dialling arm is fixed with sliding axle (8), friction when being with movable axle sleeve (9) on the axle with the minimizing rotation, its end is fixing by steel card (10), and sliding axle stretches out from scallop hole, and can slide at the effect lower edge hole wall of dialling arm.

The described releasing mechanism that links with main control unit comprises that shutter discharges driver plate (16) and shutter release hook (12), shutter discharges driver plate and is connected in organism bottom vertically, one end and shutter release button (58) link, the other end inserts in the square hole on the organism sidewall, three projections (16a) are arranged on its limit, (16b), (16c), have a groove at projection (16a) with on the plate face (16b), there is a screw (17) to pass this groove and body links, driver plate can longitudinally be moved, hang with extension spring (18) on the screw, the other end of extension spring is received on the projection (16b), open an aperture on the projection (16c), steel wire (36) is inserted in the inside, shutter release hook (12) is contained on the axle (13), projection hook on its coupler body part and the main control unit on the overhanging arm (1b) or is broken away from, and the projection (16b) that its other end is discharged on the driver plate by shutter is controlled, and hangs with extension spring on the release hook.

The interlock mechanism that described and main control unit link comprise remove handle restoring lever (6), prepare lever (11), anti-misoperation hook (14), main control unit catch (24), slurcam (26), promote lever (29), and counter promote lever (32).Removing the handle restoring lever is contained on the main shaft (5) near dialling arm, one end end has a clubfoot to be close on group arm, other end end has a unfilled corner, prepare lever be contained in axle (13) go up release hook below, there is a clubfoot in the slope one end end, the angle of the inclined-plane of the projection bottom on this inclined-plane and the main control unit overhanging arm (1b) when contact is identical, the end of the other end has a unfilled corner, anti-misoperation hook (14) is contained on the band platform screw (15) that is fixed on the body, the coupler body of one end end is after shutter discharges, before shutter release driver plate resets, be hooked on the sliding axle (8), its other end end has a clubfoot to contact with the shutter release hook, slurcam (26) links at the upper horizontal and the body of main control unit, two projections (26a) and (26b) are arranged on the one bar side, on projection (26a) next door one square support plate (27) is arranged, it is fixed on the body, have a square hole identical in the middle of the support plate with the driver plate cross section, driver plate passes from the hole, on projection (26a), hang with extension spring (28), the other end of extension spring is connected on the body, the promotion lever (29) that contacts with projection (26a) links with band platform screw (30) and body, it has three arms (29a), (29b) reach (29c), wherein arm (29a) contacts with projection (26a), arm (29b) is subjected to the effect of projection (1d), hang with extension spring (31) on the arm (29c), the counter that contacts with projection (26b) promotes lever (32) and is contained on the axle (33) that is fixed on the body, the one end leans against on the projection (26b), there are two apertures other end end, hang with extension spring (35) in the hole, control steel wire (36) is housed in another hole, in the aperture on the projection (16c) on the other end insertion shutter release driver plate of this steel wire, an end and the body of axle (33) link.The other end stretches out outside the body, and its end is fixed with multiexposure, multiple exposure and removes handle, and remove on the end margin of handle by axle (34) a trailing arm, and its holder promotes the bottom of lever at counter.

The shutter that described and main control unit link, the control gear of aperture comprise and tighten lever (19) and be fixed in sliding axle (20) on the lever, be with axle sleeve (21) on the axle, its end is fixing with steel card (22), an end that tightens lever stretches into front part of a body, and the control shutter tightens, discharges, mechanism is opened greatly, dwindled to aperture, and its other end is connected on the body by band platform screw (23).

The reducing gear that described and main control unit link comprises a reduction gearing (50) and ellipse wheel the (51) of slowing down, and they all link by the axle and the body of one with it, and reduction gearing is meshed with one section gear on the main control unit.

On described reflector roller bearing (37) and the shadow shield roller bearing (40) axle sleeve (38) and (41) are housed respectively, its end is fixing with steel card (39), (42), their other end links with reflector and shadow shield respectively, also hangs with extension spring on two roller bearings.

As shown in Figure 1, when clockwise direction is pulled when removing handle (), just driving main shaft (5) rotates, the arm (7) of dialling that is fixed on the main shaft also rotates to same direction, at this moment, be fixed in the sliding axle of dialling on the arm (8) and just slide, and stir main control unit to counterclockwise rotating along the hole wall of the scallop hole on the main control unit (1).Begin to pull remove handle after, shadow shield roller bearing (40) is because the extension spring effect falls into the groove (1g) on the main control unit, and rotate with main control unit, thereby shadow shield (43) is fallen, reflector was failure to actuate when shadow shield fell, continue to pull when removing handle and making shadow shield arrive complete off-position, reflector roller bearing (37) is just because the extension spring effect falls into main control unit groove (1h), and rotate with main control unit, when reflector will arrive precalculated position with camera lens optical axis angle at 45, projection on the overhanging arm on the main control unit (1b) begins to slide on the coupler body top of shutter release hook (12), and the inclined-plane of projection bottom slides on the inclined-plane of the clubfoot of preparing lever, the unfilled corner end of preparing lever is lifted gradually, when reflector arrived the precalculated position, the projection on the overhanging arm on the main control unit just fell in the hook of release hook (12) and main control unit is pinned.The unfilled corner of preparing lever this moment is raised to the projection (16a) that discharges on the driver plate with shutter and is separated, and be in open mode, remove handle and main control unit in rotation process pulling, the sliding axle (20) that tightens on the lever (19) also rotates under the cell wall effect of the radial slot on the main control unit (1e) thereupon in the counterclockwise direction, when reflector arrives the precalculated position, tighten lever and also shutter is tightened.On other positions when reflector no show precalculated position, remove handle restoring lever (6) and prepare lever (11) owing to be not subjected to the effect of main control unit, and because extension spring effect separately, and the unfilled corner that makes their unfilled corner end withstands on the projection (16a) of shutter release driver plate, and the shutter driver plate is pinned, so in these positions by motionless shutter release button.In addition owing to be contained on the main shaft, and be positioned at the effect of the ratchet of body opposite side, make and remove handle and in pulling process, can not return, have only when remove handle pull main control unit pinned after, ratchet could discharge ratchet, at this moment unclamps and removes after the handle, removes just homing of handle.In removing the process that handle returns, main shaft rotates thereupon, is contained in the sliding axle (8) of dialling arm on the axle in the homing process, and the catch (24) from main control unit slips over, and is pinned by it when arriving original position.Before shutter discharges, remove handle and can not be pulled once more, like this to prevent to remove the unnecessary operation of handle.Meanwhile, removing the unfilled corner end of handle restoring lever and shutter discharges driver plate and breaks away from and be in open mode.

As shown in Figure 2, after pressing shutter release button, the projection (16b) that shutter discharges on the driver plate just promotes release hook (12), itself and main control unit are broken away from, main control unit rotates to clockwise direction rapidly owing to the effect of spring, the reflector roller bearing is owing to the effect of main control unit raises up reflector, and reflector raises up to when covering view finder, and the shadow shield roller bearing just begins to raise up.Tighten lever simultaneously and rotate to clockwise direction, when shadow shield raises up the precalculated position, tighten lever and also simultaneously shutter is discharged owing to the effect of main control unit.After pressing shutter release button, under the situation of not decontroling button, anti-misoperation hook (14) is just because the effect of extension spring and the sliding axle (8) that will dial on the arm (7) hooks, and makes to remove handle and can not press, with anti-misoperation.After shutter release button unclamped, the anti-misoperation hook just fell automatically.After shutter discharges, dial the arm homing, the breach end of removing the handle restoring lever lifts, and prepares lever (11) and then owing to the effect of extension spring shutter is discharged the driver plate pinning, in case press shutter release button once more.In the main control unit rotation process, also rotate simultaneously with the reduction gearing (50) of one section gear teeth (1c) on main control unit engagement and ellipse wheel the (51) of slowing down, play the deceleration cushioning effect.

Under the situation of roll film not, slurcam (26) is owing to the effect of extension spring (28) is stretched out outside the body its end that leans on counter to promote lever (32), projection on the slurcam (26b), (26c) promote lever (32) with promotion lever (29) and counter and are separated, counter promotes lever because the effect of extension spring (35) makes control steel wire (36) stretch into shutter discharges in the aperture on the driver plate shutter is discharged the driver plate pinning, in order to avoid press shutter when roll film not.Behind roll film, because the effect of the winding mechanism of back (54) lining and the external part of slurcam is pushed back body, the projection of slurcam is just stirred counter and is promoted lever in this process, its other end is lifted and will extract the aperture of steel wire from driver plate.So just, can press shutter.As the need multiexposure, multiple exposure, can move down multiexposure, multiple exposure and remove handle, break away from slurcam and make counter promote lever, but thereby multiexposure, multiple exposure.Discharge in the turning course of back and main control unit at shutter, projection on the console panel (1d) is stirred and is promoted lever (29), promotes lever and stirs slurcam again, and making it remove handle one end by multiexposure, multiple exposure, to stretch out body outer and clash into winding mechanism, and make its release, so just roll film once more.

The sequence control of Single-sens reflex camera of the present invention is different from existing control gear, it adopts a main control unit and other mechanism to have an effect, can carry out the programmed control of reflector and shadow shield, shutter and aperture action effectively, and each inter-agency have good interlocking, the interlock performance, though this control gear is simple in structure, but reliable operation also can prevent maloperation.The camera of being made by this control gear has that volume is little, in light weight, and picture is bigger than similar camera, easily advantage such as manufacturing.Can be used for clapping collective's group photo, portrait, scene, advertisement and general live photo.

Be a example below with Single-sens reflex camera of sequence control of the present invention.

As described in Figure 3, (52) are the bodies of this camera, and it designs according to egative film and control gear size, and sequence control of the present invention is positioned at body one side at rocking handle (4) place, and ratchet device is positioned at the body opposite side.Reflector and shadow shield are positioned at body central authorities.(53) be the back of camera, change different back and can take 36 on 8 on 120 films, 12,16 and 135 films.One plate that is in the light is housed on back, also has interlock mechanism between back and the plate.When changing back, only plug plate, could take off back in case light leak from camera.When taking,, then can not press shutter as not taking off plate.(54) be film winder, (55) be view finder, it is positioned at the body top, its interchangeable flat and the two kinds of view finders of formula of bowing, and (56) are cover of upholstery, the end that tightens lever (19) is stretched into wherein, with the action of control shutter and aperture, (57) are shutter and camera lens, and it is positioned at front part of a body, camera lens also can take off and change according to different photographing requests, and the structure of interchangeable back, camera lens and view finder all adopts prior art.

Claims

1, a kind of interchangeable lenses that are used for, back and view finder also use the operation program control gear of the Single-sens reflex camera of between-lens shutter, it comprises that one tightens and releasing mechanism, a shutter, the aperture control gear, an interlock mechanism, reflector and shadow shield operation program control gear and reducing gear, it is characterized in that, there is a circular main control unit (1) to control the action of each mechanism, main control unit is contained on the axle (2) that is supported on the body (52), have the hole (1a) of an almost fan on its card, the circular arc limit in this hole is concentric with main control unit, by this hole console panel and cocking mechanism are linked, near on the edge of scallop hole an overhanging arm (1b) is being arranged, link by this arm and releasing mechanism and interlock mechanism, at the plate edge place relative one section gear teeth (1c) are arranged with the scallop hole circular arc, this section gear teeth and reducing gear link, at one side plate edge one projection (1d) is arranged near this section gear teeth, its top and interlock mechanism link, near the another side of this section gear teeth, have a radial slot (1e), it and shutter, the aperture control gear links, near radial slot, have an aperture (1f), one end of the main spring (3) on the axle (2) hangs in this hole, the other end and body link, respectively have on the next door of overhanging arm and projection (1d) bottom for circular groove (1g) (1h), overhanging arm and projection, two grooves and one section circular arc between them link with reflector (44) and shadow shield (43) by reflector roller bearing (37) and shadow shield roller bearing (40), and constituted the operation program control gear of reflector and shadow shield, near scallop hole, have a circular hole (1i), bossing on the catch on the main control unit (24) hangs in the hole, the main control unit catch then is connected on the main control unit between scallop hole and the circular hole by screw (25), hangs with extension spring on the catch.

2, sequence control as the described Single-sens reflex camera of claim (1), it is characterized in that said cocking mechanism comprises main shaft (5), remove handle (4), dial arm (7), ratchet (48) and ratchet (45), main shaft flatly is contained on the body, and run through the left and right sides of body, be fixed with in one end end and remove handle (4), fan-shaped ratchet (48) is equipped with in other end end, hang with extension spring (49) on the ratchet, one ratchet (45) is arranged at the top of ratchet, pawl axis (46) is fixed on the body, the ratchet afterbody hangs with extension spring (47), on main shaft, be fixed with group arm (7) by an end of removing handle, the other end of dialling arm is fixed with a sliding axle (8), is with movable axle sleeve (9) on the axle, and its end is fixing by steel card (10), sliding axle stretches out from scallop hole, and can slide at the effect lower edge hole wall of dialling arm.

3, operation program control gear as the described Single-sens reflex camera of claim (1), it is characterized in that described releasing mechanism comprises that shutter discharges driver plate (16) and shutter release hook (12), shutter discharges driver plate and is connected in organism bottom vertically, the one end connects with shutter release button (58), in the square hole on the other end insertion machine body sidewall, the shutter release hook is contained on the axle (13), projection hook on the overhanging arm (1b) on its coupler body part and the main control unit or is broken away from, its other end is subjected to shutter to discharge the control of driver plate, hangs with extension spring on the release hook.

4, operation program control gear as the described Single-sens reflex camera of claim (1), it is characterized in that, described interlock mechanism comprises and removes handle restoring lever (6), prepare lever (11), anti-misoperation hook (14), main control unit catch (24), slurcam (26), promote lever (29) and counter and promote lever (32), removing the handle restoring lever is contained on the main shaft (5) near dialling arm, one end end has clubfoot to be close on group arm, its other end end has a unfilled corner, prepare lever be contained in axle (13) go up release hook below, there is a clubfoot in the slope one end end, the other end has a unfilled corner, anti-misoperation hook (14) is contained on the band platform screw (15) that is fixed on the body, the coupler body of one end end is after shutter discharges, shutter discharges and is hooked on the sliding axle (8) before driver plate resets, its other end end has a clubfoot to contact with the shutter release hook, slurcam (26) links at the upper horizontal and the body of main control unit, two projections (26a) are arranged on one bar side, (26b), there is a square support plate (27) to be fixed on the body on projection (26a) next door, support plate central authorities have a square hole identical with the driver plate cross section, driver plate passes from the hole, on projection (26a), hang with an extension spring (28), the extension spring other end is connected on the body, the promotion lever (29) that contacts with projection (26a) links with band platform screw (30) and body, it has three arms (29a), (29b) and (29c), wherein arm (29a) contacts with projection (26a), arm (29b) is subjected to the effect of projection (1d), hang with extension spring (31) on the arm (29c), the counter that contacts with projection (26b) promotes lever (32) and is contained on the axle (33) that is fixed on the body, the one end leans against on the projection (26b), there are two apertures other end end, hang with extension spring (35) in one hole, be connected to control steel wire (36) in another hole, the other end of this steel wire discharges driver plate with shutter and links to each other, one end and the body of axle (33) link, the other end stretches out outside the body, its end is fixed with multiexposure, multiple exposure and removes handle (34), removing on the end margin of handle by axle has a trailing arm, and its holder promotes the bottom of lever at counter.

5, as the sequence control of the described Single-sens reflex camera of claim (1), it is characterized in that described shutter, aperture control gear comprise tightens lever (19) and is fixed in sliding axle (20) on the lever, be with axle sleeve (21) on the axle, its end is fixing with steel card (22), an end that tightens lever stretches into front part of a body, and tighten, discharge with shutter, aperture is opened and is dwindled mechanism greatly and link, and its other end is connected on the body by band platform screw (23).

6, as the sequence control of the described Single-sens reflex camera of claim (1), it is characterized in that, described reducing gear comprises reduction gearing (50) and ellipse wheel the (51) of slowing down, they all link with body by the axle of one with it, and reduction gearing is meshed with one section gear teeth on the main control unit.

7, as the sequence control of the described Single-sens reflex camera of claim (1), it is characterized in that, described shutter discharges three projections (16a) on the driver plate, (16b) and (16c), have a groove at projection (16a) with on the plate face (16b), have a screw (17) to pass this groove and body links, hang with extension spring (18) on the screw, the other end of extension spring is connected on the projection (16b), have an aperture on the projection (16c), steel wire (36) is inserted in the inside.

8, as the sequence control of the described Single-sens reflex camera of claim (1), it is characterized in that, there is a projection end of the overhanging arm on main control unit (1b), one inclined-plane is arranged at the projection bottom, and this inclined-plane is identical with the angle of the inclined-plane of preparing lever (11) one end ends when contacting.

9, as the sequence control of the described Single-sens reflex camera of claim (1), it is characterized in that, on said reflector roller bearing (37) and the shadow shield roller bearing (40) axle sleeve (38) and (41) are housed, sleeve end is fixing with steel card (39) and (42), their other end links with reflector (44) and shadow shield (43) respectively, also hangs with extension spring on two roller bearings.