CN1161469A - Camera with spool positioning mechanism - Google Patents
Camera with spool positioning mechanism Download PDFInfo
- Publication number
- CN1161469A CN1161469A CN 96107431 CN96107431A CN1161469A CN 1161469 A CN1161469 A CN 1161469A CN 96107431 CN96107431 CN 96107431 CN 96107431 A CN96107431 A CN 96107431A CN 1161469 A CN1161469 A CN 1161469A
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- CN
- China
- Prior art keywords
- spool
- driver
- camera
- unrolling
- magazine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000007246 mechanism Effects 0.000 title abstract description 13
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 241001125879 Gobio Species 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 230000012447 hatching Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
Images
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- Details Of Cameras Including Film Mechanisms (AREA)
Abstract
A camera includes a film rewind mechanism that allows manual rewinding of a film spool to a given position. The mechanism includes a one-way clutch that allows the rewind knob to drive the film spool only in a rewind direction. The clutch mechanism has a single arm for transfer of motion between the rewind knob and a spool driver. Use of the single arm clutch allows the rewind knob to be connected with the spool only in a single unique position or phase relation so that the operator can move the rewind knob to an indicated position of the camera body which corresponds with a similarly indicated position of the spool on the film cassette.
Description
The present invention relates to adopt the camera of replaceable film cassette, more particularly, relate to the camera that a kind of employing has the film cassette of mark or other devices, this mark or other devices indicate an internal sizes scroll attachment film unroll the back residing, in order to indicate the exposed to the sun desired location of light of this film.
In the technical field that relates to the processing of photography camera and film cassette, a kind of film cassette with external label is provided, to indicate the position of an internal sizes scroll attachment, be a kind of technique known.In application, when this film exposed to the sun light and unroll in magazine after, this film spool turns to specific " exposure " position in order to indicate this film to expose, and should " exposure " position be then located by the mark on this magazine.After magazine taken out from camera, the mark that this film of indication had exposed to the sun light and can handle on this magazine was handled manufacturer to film the basis of handling this film is provided.The U.S. Pat 5,030,978 of authorizing on July 9th, 1991 discloses a kind of pattern of this magazine, and the mode of using this magazine in the camera of motor driven.Yet this patent document does not but disclose a kind of simplified manual rewind mechanism that is used for locating this magazine.
The invention provides a kind of camera that has a manual rewind mechanism, this manual rewind mechanism has following function: (1) when unrolling knob when film advance is mobile on oppositely, and this rewind mechanism can make this magazine film spool break away to be connected with the direct of this knob that unrolls; And (2) when driving this spool on this unrolls the direction of unrolling of knob at film, and this rewind mechanism can be unrolled at this magazine spool and this provides a kind of single phase relation between knob.Therefore, this knob that unrolls is positioned on the position with respect to an indication of this camera body, will realizes effectively this magazine spool is positioned on the position of " exposing ", or if desired, be positioned on other selected positions.
This rewind mechanism comprises one at this improved one-way clutch between knob or crank and this spool driver or the gudgeon of unrolling.When this knob that unrolls rotated on this film advance direction, this clutch coupling allowed that this spool freely rotates with respect to this knob that unrolls.Yet when rotating on this unrolls the direction of unrolling of knob at film, this improved clutch coupling only joins this spool driver on this knob that unrolls on a single bit position mutually of this spool driver and this knob that unrolls.Therefore, in the process of unrolling, unroll at this and just to have a single contact relation between knob and this spool, after the operation of unrolling of finishing a film, this contact relation allows that the operating personnel of this camera move to a certain location with this knob that unrolls, and this ad-hoc location is positioned at film in this magazine of indication with this film spool and has exposed on the desired position.The ad-hoc location of this knob that unrolls can be indicated with external label or other suitable locating devices such as magnetic viewer, bar code keeper etc.After from this camera, taking out this magazine, can give film with this mark that exposed with this film cassette intactly and handle manufacturer, will help processing thereafter like this.
In a certain embodiments, this one-way clutch comprises a single elastic arm, this elastic arm have one with a single tooth or an end that engages by portion so that concern the pivo table member that relatively connects this clutch coupling with the contact of a single phase angle.For the position of indicating this knob that unrolls is provided with a mark, when this unrolled knob when rotation on the direction of unrolling, this mark was equivalent to take-up cassette spool positions or other positions.
These or other feature and advantage of the present invention, can from following of the present invention elaborate and be expressly understood in conjunction with the accompanying drawings obtain.Wherein
Fig. 1 is the sectional view of being cut open by the part of the 1-1 hatching line intercepting of Fig. 2, and it illustrates a kind of camera with the film cassette and the device that unrolls of the present invention;
Fig. 2 is the top view of the camera of institute shown in Fig. 1, and it illustrates the knob that unrolls that is positioned on the mark position of indicating the position of unrolling;
Fig. 3 is that it illustrates and is positioned at the film cassette of exposure position by the sectional view of the 3-3 hatching line intercepting of Fig. 1;
Fig. 4 is that it illustrates the inner structure of one-way clutch of the present invention by the sectional view of the 4-4 hatching line intercepting of Fig. 1.
Now with reference to each accompanying drawing the present invention is narrated in detail, camera of the present invention is with total label 10 expressions, and this camera has a main body 12, and each accompanying drawing only illustrates an end of this main body.At place, this end, be provided with a door 14 of using for load, when should 14 opening, just can allow a film cassette 16 is packed in this main body 12.Magazine 16 accommodates a film spool 18, unshowned, the film in order to expose for shooting in camera of a volume of reeling on this film spool 18.This film spool comprises a recess 20, and this recess 20 can engage drivingly with a gudgeon 22.This gudgeon 22 constitutes a part of a rewind mechanism 24, and 24 of this rewind mechanism comprise an one-way clutch 26 and a peripheral driver, and the structure of this peripheral driver is then got the form of the knob 28 that unrolls of a crank 30 of a kind of carrying.
According to the present invention, this film cassette 16 is an a kind of class magazine that comprises an external indicator 32, this external indicator 32 links to each other with this spool 18, and this external indicator 32 combines with mark 34,36 on this magazine housing, in order to the position by this spool 18 of angle intervals ground indication.These position marks 34,36 are in order to respectively by exposing or unexposed mode is indicated the situation of the film in this magazine.Identical therewith, this crank 30 also is provided with an indicator 38, make this indicator 38 punctual with mark or 40 pairs of setting marks on the outer surface of this camera body 12 when rotating by unrolling, the positioned internal state that just indicates this film spool 18 is to be in the position of having exposed.
This one-way clutch being set or the purpose of the clutch coupling 26 that unrolls, is in order to unroll knob 28 at this when this film advance direction (being clockwise direction) goes up rotation in Fig. 2 to 4, to untie the annexation of this spool 18 and this knob 28 that unrolls.So just, can prevent owing to going up and directly to drive this spool 18 and cause this knob 28 to damage these films being different from the direction of unrolling (being counter-clockwise direction) among Fig. 2.In addition, 26 on this clutch coupling has the function that this spool 18 and this knob 28 that unrolls are coupled together on a specific phase angle.This angle represent one first phase angle and one second phase angle and.This first phase angle is an angle forming between an inner spool driver (gudgeon 22) and this spool, and this second phase angle this clutch coupling of serving as reasons is determined in this gudgeon 22 and the angle of being unrolled and being formed between the driver (knob 28 and crank 30) by an outside of operating personnel's manual drives of camera.
When the operating personnel of this camera twist on the direction of unrolling when revolving this knob 28, this knob 28 rotates these spools 18 so that unroll this film.After the action of unrolling was finished, the operating personnel of this camera continued to rotate this knob 28 on the direction of unrolling, the indicator 38 on this crank 30 is positioned at the opposite of this setting mark 40 that exposed.So just, the indicator 32 on this spool 18 is placed on the opposite of being somebody's turn to do " exposing " mark or setting mark 36 of this magazine 16, indicates the state that this film is in the light that exposed to the sun now.
For finishing this action, the inside of this clutch coupling 26 need have a cam 42, and this cam 42 links to each other with this gudgeon 22 that engages this spool 18.This cam 42 has a single tooth or by portion 44, this single tooth or by portion 44 by face towards clockwise direction, should lean on portion 44 on counter-clockwise direction, to become streamlinedly main body indentation towards this cam 42.An annular solid 46 links to each other with this knob 28, and this annular solid 46 is around this cam 42, and this annular solid 46 can rotate with respect to this cam 42 around the axis with these cam 42 coaxial lines.Elastic arm 48 of this annular solid 46 carryings, as from can see the top view shown in Figure 4, this elastic arm 48 extends in the clockwise direction and be partial to ground and engages with central cam.This elastic arm 48 has a hook-shaped end 50, when (with this knob 28) rotates this annular solid 46 on counter-clockwise direction, this end 50 leans on portion 44 to engaging with this, makes also to rotate this cam 42 by a predetermined phase relation on counter-clockwise direction between this cam 42 and this annular solid 46 (and this knob 28).Yet, when the operating personnel of camera when going up this knob 28 of rotation with preceding opposite direction (being clockwise direction), this hook-shaped end 50 is this spool 18 of rotation on the film advance direction with leaning on portion 44 to be disengaged and to ride on the surface of this cam 42.So just, can when unrolling this film, needs prevent to damage film and magazine because of rotating film improperly.
Under the end hook-shaped with this 50 and this situation about engaging by portion 44, after this film unrolled fully, the operating personnel of this camera were placed on the indicator 38 on this unroll knob 28 and crank thereof on the opposite of this setting mark 40 of this camera body 12.This film spool 18 just automatically is positioned on the position of this light that exposed to the sun, and in this position, this indicator 32 just is positioned at the opposite of being somebody's turn to do " light had exposed to the sun " setting mark 36 of this magazine 16.Can open the door 14 that this confession load uses then and take out this magazine 16, this magazine 16 be delivered to film again and handled manufacturer, this film light that will expose to the sun will be learnt from the indicator of this magazine 16 by this manufacturer, and can wash processing.
Though with regard to a certain embodiments narration the present invention,, be to be understood that, under the situation of spirit that does not break away from the above inventive concept of the present invention of narration and category, can make multiple variation and remodeling to the present invention.Therefore, should not limit the present invention with the embodiment that is narrated, whole categories of the present invention then are limited in claims of enclosing fully.
Claims (8)
1. a photography camera comprises a main body, this main body is in order to accept a film cassette, this magazine accommodates the spool of the photosensitive film of reeling thereon, this magazine comprises in order to determine first locating device of the turned position of this spool when taking out this magazine from this camera, this camera has in order to an inner spool driver of this spool of rotation on the direction of unrolling and an outside that is connected with this spool driver driver that unrolls, and, it is characterized in that at unroll one-way clutch between the driver of this spool driver and this:
This spool driver only is connected with this spool on one first phase angle;
This clutch coupling can engage so that connect this unroll driver and this spool driver, make it only on second phase angle on the direction of unrolling, to rotate, and allow this driver that unrolls freely to rotate going up in the opposite direction with respect to this spool driver with the side of unrolling;
This camera comprises when this clutch coupling is in engagement state second locating device in order at least one position of determining this spool.
2. the photography camera shown in claim 1, it is characterized in that: this clutch coupling comprises coaxial, internal part and external component in relative rotation, the elastic arm that parts from these inside and outside parts extend, this elastic arm contacts with another parts in these inside and outside parts, locking device on these inside and outside parts, this locking device only can engage in order to this second phase angle that engages this clutch coupling on direction and on this unrolls direction in relative rotation at these inside and outside parts.
3. the photography camera shown in claim 2, it is characterized in that: this internal part is a cam and this external component is an annular element, this annular element carries this elastic arm, this elastic arm comprises a hook-shaped end, when on the direction of unrolling, rotating, this hook-shaped end and engaging on this cam by portion, so as definite this annular element when on the direction of unrolling, rotating to this second phase angle.
4. the photography camera shown in claim 1, it is characterized in that: this second locating device comprises the mark relevant with this camera body with this driver that unrolls.
5. the photography camera shown in claim 1, it is characterized in that: this first locating device comprises the mark relevant with this magazine with this spool.
6. photography camera of accepting a film cassette, this magazine accommodates the spool of the photosensitive film of reeling thereon, this magazine comprises in order to the mark of the turned position of this spool to be shown when taking out this magazine from this camera, this camera has in order to an inner spool driver of this spool of rotation on the direction of unrolling and an outside that is connected with this spool driver driver that unrolls, and, it is characterized in that at unroll one-way clutch between the driver of this spool driver and this:
This spool driver only is connected with this spool on one first phase angle;
This clutch coupling can engage so that connect this unroll driver and this spool driver, make it only on second phase angle on the direction of unrolling, to rotate, and allow this driver that unrolls freely to rotate going up in the opposite direction with respect to this spool driver with the side of unrolling;
This camera comprises when this clutch coupling is in engagement state the mark in order at least one position of indicating this spool.
7. the photography camera shown in claim 6, it is characterized in that: this clutch coupling comprises coaxial, internal part and external component in relative rotation, the elastic arm that parts from these inside and outside parts extend, this elastic arm contacts with another parts in these inside and outside parts, locking device on these inside and outside parts, this locking device only can engage in order to this second phase angle that engages this clutch coupling on direction and on this unrolls direction in relative rotation at these inside and outside parts.
8. the photography camera shown in claim 7, it is characterized in that: this internal part is a cam and this external component is an annular element, this annular element carries this elastic arm, this elastic arm comprises a hook-shaped end, when on the direction of unrolling, rotating, this hook-shaped end and engaging on this cam by portion, so as definite this annular element when on the direction of unrolling, rotating to this second phase angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96107431 CN1161469A (en) | 1995-05-01 | 1996-05-01 | Camera with spool positioning mechanism |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US432,412 | 1995-05-01 | ||
| CN 96107431 CN1161469A (en) | 1995-05-01 | 1996-05-01 | Camera with spool positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1161469A true CN1161469A (en) | 1997-10-08 |
Family
ID=5119590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96107431 Pending CN1161469A (en) | 1995-05-01 | 1996-05-01 | Camera with spool positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161469A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704407A (en) * | 2017-01-25 | 2017-05-24 | 北京本立科技有限公司 | Positionable overrunning clutch |
-
1996
- 1996-05-01 CN CN 96107431 patent/CN1161469A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704407A (en) * | 2017-01-25 | 2017-05-24 | 北京本立科技有限公司 | Positionable overrunning clutch |
| CN106704407B (en) * | 2017-01-25 | 2019-07-23 | 北京本立科技有限公司 | One kind can position freewheel clutch |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |