CN2075791U

CN2075791U - Camera system

Info

Publication number: CN2075791U
Application number: CN90204751U
Authority: CN
Inventors: 陈冶
Original assignee: Achiever Industries Ltd sA
Current assignee: Achiever Industries Ltd sA
Priority date: 1989-04-10
Filing date: 1990-04-09
Publication date: 1991-04-24
Also published as: GB2230615B; GB2230615A; GB8908019D0

Abstract

The utility model discloses a camera mechanism comprising a shutter buckle mechanism and a shutter releasing mechanism. The shutter buckle mechanism comprises a double-fork component which can rotate in a plane vertical to the negative film. One arm of the double-fork component extends into the moving path of the conveying sprocket hole of the negative film. A bell crank component is arranged that the bell crank component generally can rotate in the moving plane of the double-fork component and is arranged in tilted way to a rest position. The other arm of the double-fork component acts on one end of the bell crank. The other end of the bell crank cooperates with the pawl on the shutter plate. A latched component which is arranged in tilted way by a spring cooperates with the upright latch of the bell crank and the latched component is caused to move apart the latched position by pressing the shutter release button release button. The camera comprising the mechanism is also provided.

Description

Camera system

The utility model relates to a kind of Camera system of film tube camera, and this mechanism comprises a fast aperture of door, shutter plate, an egative film collecting device, a shutter plate deduction structure and a shutter releasing mechanism by the spring biasing.

BrP 1538799(Seiko) the button operation of pulling of having described the tripper of camera all is to carry out simultaneously with the action of the egative film winding mechanism that will the egative film in camera moves to the position that preparation takes next time usually.This patent specification has also been described and has been pulled the deduction structure and have difficulties synchronously with the egative film winding mechanism, and describes and must consider that allowance is to deal with between two mechanisms owing to can not the synchronous fully problem that is produced.This patent thereby disclose a kind of structure theme and that adapt to so asynchronous problem as this patent.

The purpose of this utility model is to provide a kind of Camera system of the above-mentioned type, in this mechanism shutter pull the deduction structure with the egative film winding mechanism synchronous.

According to the utility model, a kind of Camera system of camera is provided, and the shutter plate, an egative film collecting device, that this mechanism comprises a fast aperture of door, a spring biasing is suitable for pulling a deduction structure and a shutter releasing mechanism by the shutter of the transportation sprocket hole operation of egative film; Shutter is pulled the deduction structure and is comprised a pair of fork member, and arrangement can be rotated in one of vertical with the plane of egative film in camera plane, and the one arm puts in the pathway of dividing a word with a hyphen at the end of a line in transportation sprocket hole of egative film; One both arms crank member, installation can be rotated in the plane of motion of two fork members substantially, and is biased to a resting guard, and another arm of two fork members acts on one of bell crank end, one of set pallet on the other end of the bell crank operation shutter plate, bell crank are provided with a upright door bolt; And the door bolt of a spring biasing is decided member, arrange and this door bolt cooperation, and can move apart the door bolt allocation by pressing of shutter release button, the situation of this arrangement is: when using the egative film collecting device to carry egative film by camera, the first arm of two fork members engages egative film and moves with egative film, thereby move second arm of two fork members, thereby rotation bell crank, make the other end of bell crank move to the pulling during button bit puts of pallet of shutter plate, and decide the synergy of member and fasten with a bolt or latch and into pull button bit and put by this door bolt and door bolt, make when pressing release-push door bolt and door bolt decide the member separation, cause bell crank to be back to its resting guard, in this action, the pallet of moment contact shutter plate is opened fast aperture of door in order to do moment.

Device should be contained in this mechanism, pull button bit postpone and prevent to continue the coiling egative film in order to have moved at bell crank, this requirement can be reached by following arrangement, decide member when door bolt and moves to door bolt during allocation, and door bolt one of is decided on the member teat joint and one of is connected on the egative film collecting device gear.

One of the Camera system of description explanation the utility model embodiment, in the accompanying drawings:

Fig. 1 is the decomposition diagram of camera and component parts thereof; And

Fig. 2 A to 2C, 3A to 3C and 4A to 4C are respectively schematic plan view and the front view of this mechanism when diverse location.

With reference to the accompanying drawings, a camera comprises a preceding body 1 and a back body 2, reaches mechanism cover 3.Preceding body 1 has a hole 4, can pass through for light, and carry a viewfinder 5 and an egative film collecting device 6, and collecting device comprises a gear 7 and an egative film socket joint closes member 8.

Mechanism cover 3 is essentially box, have one open after portion and one of cover the front portion by lens support plate 9, the lens support plate carries lens 10.The some upright pin 11,12,13,14,15,16,17 and 18 of surface apparatus on the cover 3, it can be understood below purposes.This cover also has a hole 19, in order to admit egative film collecting device 6.

Pin 11 is accepted and is supported a spring arm 20, and this arm and gear 7 one work as a pallet, only can rotate along a direction in order to do the egative film collecting device.Pin 12 is accepted and is supported a gear 21, in order to do rotatable, and this gear engagement gear 7.A pair of fork member 22 is installed and can be slided and rotation around pin 13.

Extend the arm 23 of two fork members 22 side after cover 3, and enter in egative film 43 planes of one of desiring to be loaded in the camera " 126 " egative film tube, in order to do the transportation sprocket hole in this egative film of joint.Extend one of two fork members 22 pin 25 and sell one of 14 spring 24 side and the two fork of clockwise direction biasing member 22(Fig. 2 B, 3B and 4B after cover 3).

One upright pin, 44 structures are located on the cover 3 one of surface in the recess 45, this pin 44 can with sagging pin 46 cooperations of one of two fork members 22, as described later.

One shutter plate 26 is loaded on the pin 27 with rotary type, and by spring 26 ' the bias to off-position of lens 10.Shutter plate 26 comprises a pallet 28, and this pallet extends the top, plane on surface on the cover 3.

One both arms crank 29 is installed and can be rotated around pin 15.To counter-clockwise direction biasing (with reference to figure 2A, 3A and 4A), spring 30 one of extends on the bell crank 29 upright pin 31 and sells between 16 bell crank 29 by a spring 30.

One of bell crank 29 end 32 is arranged pallet 28 synergy with shutter plate 26.The other end 33 of bell crank 29 and two another arm 34 synergy of pitching members 22.

Bell crank 29 also comprises a upright rod bolt 35.One door bolt decide member 36 arrangement and can be rotated on pin 17, and biases to side before the cover 3 by a spring 37, and spring 37 extends to fasten with a bolt or latch one of decides on the member 36 to sell 38 and sell between 18.

Comprise a teat 40 by one of spring biasing shutter release button 39, this teat arrangement is pressed on door bolt and decides on one of member 36 pin 41.

Door bolt is decided member 36 and contains one in its end to sell 42, but in the pathway of the tooth of this pin shift-in gear 21; And comprise a shoulder 36 ', in use in order to engage the rod bolt 35 of bell crank 29.

Refer now to the effect of Fig. 2,3 and 4 these cameras of explanation.

When 6 rotations of egative film collecting device, egative film is pulled to the left of Fig. 2.Because arm 23 injects in the transportation sprocket hole of egative film 43, so make the arm 23 of two fork members 22 also move to left, this then make the ends 33 of the mobile along clockwise direction bell crank 29 of arm 34 of two fork members 22, and the end 32 of bell crank 29 is moved past outside the pallet 28.Thereafter, rod bolt 35 engage latch decide the shoulder 36 of member 36 ', remain in order to do bell crank 29 and to pull button bit and put.Decide member 36 when it fastens with a bolt or latch in allocation when door bolt, this member in order to do pin 42 meshing gears 21, and prevents that egative film collecting device 6 is further rotated to reach.

When two fork members 22 during by egative film 43 rotation, at two fork members 22 by egative film 43 to front slide and before breaking away from this egative film, around the upright pin 44 of sagging pin 46 by cover 3.Thereby prevent that two fork members 22 break away from egative films 43, till it fully rotates, pull button bit and put in order to do guaranteeing that bell crank 29 arrives.

When pressing shutter release button 39, the teat 40 of shutter release button 39 moves backward, and the pushing door bolt decides on the pin 41 of member 36, decides engaging of member 36 and bell crank 29 thereby separate unlatching.This unties and makes bell crank 29 counter rotation under the influence of spring 30, this makes the end 32 of bell crank 29 hit the pallet 28 of shutter plate 26 and moves to outside this pallet, thereby instantaneous rotating shuttle plate 26, and allow that light covers in 3 by entering, and be projeced on the egative film 43.

The utility model provides cheap and convenient small cameras.

The utility model can be implemented by the mode beyond described, and is skillful in all modifications that the personage in present technique field can understand, change, and changes and all be contained in the utility model.

Claims

1, a kind of Camera system of film tube camera, this mechanism comprises a fast aperture of door, a shutter plate by the spring biasing, an egative film collecting device, a shutter and pulls deduction structure and a shutter releasing mechanism, it is characterized in that this pulls the deduction structure and be suitable for by the transportation sprocket hole operation in the egative film, this shutter is pulled the deduction structure and is comprised a pair of fork member, this member arrangement can be rotated in one of vertical with the plane of the egative film of camera plane, and the one arm puts in the pathway of dividing a word with a hyphen at the end of a line in transportation sprocket hole of egative film; One both arms crank member, this member arrangement can be rotated in the rotational plane of two fork members substantially, and biased to a resting guard, another arm of two fork members acts on one of bell crank end, one of set pallet cooperation on the other end of bell crank and the shutter plate, bell crank are provided with a upright door bolt; The door bolt that reaches the spring biasing is decided member, and this member is arranged and this door bolt cooperation, and can move apart a door bolt allocation by operating a shutter release button; The situation of this arrangement is: when using the egative film collecting device to carry egative film by camera, the first arm of two fork members engages egative film, and move with egative film, thereby move second arm of two fork members, and thereby bell crank is rotated, the button bit of pulling that makes the other end of bell crank move into the pallet of shutter plate is put, and decide the synergy between member and fasten with a bolt or latch to schedule and pull button bit and put by this door bolt and door bolt, make door bolt and door bolt decide member separately when pressing in order to do shutter release button, cause bell crank to transfer back to its resting guard, in this action, the pallet of moment contact shutter plate is opened fast aperture of door in order to do moment.

2,, it is characterized in that containing in order to have moved to it at bell crank and pull button bit postpone prevent to continue the to reel device of egative film by the described Camera system of claim 1.

3, by the described Camera system of claim 2, it is characterized in that when door bolt decide member and is moved to a door bolt allocation, fasten with a bolt or latch and one of decide on the member teat joint and be connected to one of egative film collecting device gear.

4,, it is characterized in that being provided with in order to arrive at bell crank to pull and prevent before button bit is put that two fork members break away from the device that engages with egative film by each the described Camera system in the claim 1 to 3.