JPH02166436A - Press-bonding board mounting mechanism and camera with the same mechanism - Google Patents

Abstract

PURPOSE:To improve operability at the time of assembling by integrally forming a leg part with locking parts which engage with a back lid side on the press- bonding board of a film, loading an elastic body on the leg part in advance and engaging the locking parts with engaging parts on the back lid side. CONSTITUTION:The engaging parts 44a in a square shape hole are formed at four positions on a back lid plate 44 and the press-bonding board 205 is elastically held on the engaging parts 44a. On the press-bonding board 205 the leg part 205b with the locking parts 205a is integrally formed with corre spond to the engaging parts 44a of the back lid plate 44 and assembled to the back lid plate 44 with a coil spring 206 loaded on in advance. Then the press-bonding board 205 is elastically held on the back lid plate 44. Thus assemblying operability is further more improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Applicability] The present invention relates to a crimp plate attachment mechanism for attaching a crimp plate for obtaining flatness of photographic film to the back cover side, and a camera having this crimp plate attachment mechanism.

[Prior Art] A roll film used as a photographic film is a soft film that bends easily and cannot be held in the correct position by itself.

Therefore, a pressure bonding plate with good flatness and sufficient rigidity is pressed against the camera body with a spring, and it is pressed from the back side of the photographic film to position it correctly within the tunnel gap formed by the pressure bonding plate and the film rail. It is designed to maintain

There are various ways to attach this crimp plate, for example, the crimp plate is elastically held directly on the back cover, or the
There is a device such as No. 5438 in which a crimp plate is elastically held on a back cover base plate fixed to the back cover, and this back cover base plate is tightened and fixed to the back cover with screws.[Problem to be solved by the invention] By the way, the crimp plate needs to be elastically held on the back cover side.
Since an elastic member such as a spring is attached in addition to holding the crimp plate, assembly is time-consuming, and a simple and reliable attachment mechanism is desired.

In addition, for example, the back cover may be equipped with a liquid crystal display section, and its control section may be interposed between the back cover and the back cover base plate. In this case, in order to ensure the conductivity of the liquid crystal display section, ,
It is necessary to secure the back cover base plate to the back cover with screws etc. near the liquid crystal display section.

Furthermore, in order to maintain the flatness of the crimp plate, the mounting position of the crimp plate on the back cover side is preferably near the rail surface of the camera body where the crimp plate is pressed. When using the back cover base plate, if you attach the crimp plate to the back cover base plate in advance, you will not be able to tighten and secure the back cover base plate with the back cover screw due to the tightening position, so you can easily and easily attach the crimp plate. Care must be taken to ensure that it is elastically held against the back cover side by a reliable mechanism.

The present invention has been made in view of the above points, and the first object of the invention is to provide a crimp plate mounting mechanism for a camera that allows the crimp plate to be easily and reliably assembled and improves the workability of assembly. Moreover, it is an object of the second invention to provide a camera having such a crimp plate attachment mechanism.

[I. Means for Solving Problem 1] In order to solve the above problem, the crimp plate mounting mechanism of the present invention includes a crimp plate that positions the photographic film in the tunnel interval, and a leg portion having a locking portion integrally formed therein. an elastic body is attached to the foot and held by the locking portion thereof, and the locking portion of the foot is inserted and engaged with the locking portion formed on the back cover side of the camera body; It is characterized in that the elastic body is interposed between the pressure bonding plate and the back cover side to elastically hold the pressure bonding plate.

Further, in the crimp plate attachment mechanism of the present invention, the foot portion of the crimp plate is inserted into the engaging portion on the back cover side and moved in one direction, the retaining portion is engaged and held in the engaging portion, and the foot portion of the crimp plate is moved in one direction. The battery lid of the battery housed in the lid can restrict the movement of the crimp plate and prevent it from being removed.

Further, the camera of the present invention is characterized in that a crimp plate is attached to the back cover side of the camera body which is openable and closable, using the crimp plate attachment mechanism.

[Function] In the crimp plate attachment mechanism of the present invention, when an elastic body is attached to the foot of the crimp plate and held, and the engaging portion on the back cover side is engaged and held,
An elastic body attached to the foot is interposed between the crimp plate and the back cover side, thereby elastically holding the crimp plate. The elastic body is attached to the foot of the crimp plate in this way, but since the foot is provided with a locking part, the elastic body does not fall off during assembly, and moreover, the foot is attached to the back cover side. The elastic body can be attached at the same time just by engaging and holding it.

Further, in the crimp plate attachment mechanism of the present invention, the foot portion of the crimp plate is inserted into the engaging portion on the back cover side and moved in one direction, the retaining portion is engaged and held in the engaging portion, and the foot portion of the crimp plate is moved in one direction. If the battery lid of the battery housed in the lid restricts the movement of the crimp plate and prevents it from being removed, the battery lid can also be used, and no special removal prevention member is required.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

Figures 1 to 6 show a camera to which the present invention is applied, in which Figure 1 is a front view of the camera, Figure 2 is a rear view of the camera, and Figure 3 is a rear view of the camera.
The figure is a plan view, Figure 4 is a left side view of Figure 3, and Figure 5 is a left side view of Figure 3.
The right side view of the figure, Figure 6 is the Vl-Vl sectional view of Figure 1,
FIG. 7 is a view showing the display on the finder, and FIG. 8 is a view showing the display on the back cover.

Camera body 1 This camera has a main body 10, a front cover 20, and a decorative panel 30.
and a back M40, each of which is made of synthetic resin. Decorative panel 3 on the front side of the front cover 20
0 is engaged, and the front cover 20 is engaged and screwed to cover the main body 1O. Back M40 and battery M4
1 is integrally assembled to a bearing portion 42a of a main body mounting body 42 via a hinge shaft 43, and this main body mounting body 42 is engaged with the main body 10 and further fixed with screws. This back cover 40 is opened and closed by a back cover opening/closing knob 11 provided on the main body 10. A battery escape portion 41a is formed in the battery M41, and a recess 41b is further formed in the side portion of the battery i[41. The battery cover 41 is closed by engaging the main body 10 at the side, and can be opened by placing a fingertip in the recess 41b on the side.

A strap attachment 12 is provided near the recess 41b of the battery 141 on the side of the front cover 20.

Front cover 20, decorative panel 30, back cover 40, and battery cover 4
1, the entire circumferential surface of the camera is formed into a curved surface, and the parts that protrude from the sides of the camera are minimized to make it feel nice to the touch.

The size of the camera is approximately 11) mm in length and 63 mm in height.
, is formed with a thickness of approximately 35 mm, and has a compact structure with excellent handling and portability.

Further, the screen size is set to 24 mm x 36 mm.

The main body 10 is formed with an unexposed film storage chamber 14 and an exposed film storage M15 with an image frame section 13 in between. The cartridge 1 is stored in the unexposed film storage 'N14, and the exposed photographic film F is stored in the unexposed film storage chamber 14. is provided in the exposed film storage chamber 15 and is wound up by a roll 16.

A front base plate 17 is provided in the center of the main body 10, and a lens barrel 51 equipped with a photographic lens 50 is provided on this front base plate 17.
is provided so as to be movable in the direction of the optical axis and is collapsible.

This photographic lens 50 of 1 and 2 is composed of 4 elements in 4 groups, and has a lens barrel frame 22.
The lens barrel frame 22 is integrally attached to the lens barrel 51 via supports 52 and 53. The focal length of the photographic lens 50 is set to 35 mm, and the brightness is set to F3.5.

The photographic lens 50 has a shutter 5 between the lenses.
A between type with 4 is used, and 3 pieces (D
LinX50m, 50b, 50c are made of glass,
One lens 50d on the photographic film side is made of aspherical plastic.

The photographing distance of the photographing lens 50 is set from 0.35 m to infinity.

77ヱヱヱヱヱㅱㅱ〇The finder mechanism is installed in the upper center of the camera body.
An Albada-style bright frame see-through finder is used.

This finder 60 is provided with a display as shown in FIG.
3, a rough distance measurement completion (lit) and distance warning (blinking) display 64, a close-up mode (lit) display 65,
A brick mark 66 and the like are provided.

1 stand! During photographing, the focus adjustment mechanism changes the distance between the photographic lens 50 and the photographic film surface according to the distance to the object, and adjusts the focus so that the image of the object is correctly focused on the film surface.

The projecting AP lens 7 serves as a distance measuring mechanism for this focus adjustment.
0. A light-receiving AF lens frame 1 is provided on the upper part of the front base plate 17, and is covered with F windows 72 and 73 of the decorative panel 3o.
It uses infrared non-scan active automatic ranging. The shooting distance range is 0.6m to infinity for normal shooting, and 0.35mN0. for close-up shooting. It is am.

The lens barrel 51 that holds the photographic lens 50 is extended by the AF momo-74, and the lens group is driven straight to adjust the focus. Focus can be locked by pressing the release button 2 halfway, and distance measurement is completed in the finder 60. Display. In addition, close-up shooting is possible by operating the close-up button 3, and
Press to switch to normal shooting. A power button 4 is provided near the close-up button 3.

Please! The shutter mechanism has the function of providing the necessary amount of exposure to the photographic film over time, and also the function of blocking unnecessary light outside of the exposure time.

The shutter motor 80 is driven by the operation of the release button 2 to open and close the shutter 54, and the shutter 54 is controlled by a one-way programmable shutter system. An electromagnetic release is also used, and the shutter speed is steplessly variable from 1/3 second to 11,500 seconds. Furthermore, a self-timer is used, which is set using the shooting mode switching button S1 and starts operating by operating the release button 2.The operating time is approximately 10 seconds, and when activated, the light emitting diode lights up for approximately 7 seconds, and the operation time is approximately 3 seconds. Flashes for seconds. After one shot, it will return to automatic flash mode.

The shutter 54 is released and locked when the lens barrier is closed, the power supply voltage is low, the flash is not charged, and the subject distance is outside the photographable distance range.

1. In order to give proper exposure to photographic film, it measures the brightness of the light on the subject side that falls on the screen and adjusts the amount of exposure. Changes the electrical signal depending on the amount of incident light1^
In order to
is used. This light receiving element 90 is connected to the front base plate 1.
7 and covered by the AE light receiving window 91 of the decorative panel 30. The interlocking range of n ratio control is film sensitivity l50
100, the EV value of the subject brightness is in the range of 5 to 17,
If the EV value is 9 or less, the flash will automatically fire.

This camera uses film in a cartridge with a DX code, and when you put photographic film into the camera, the film sensitivity is automatically set to 15O50-3200, and all non-DX films are automatically set to the sensitivity tsotoo. .

In this strobe mechanism, a flash tube 100 is fixed above the unexposed film chamber 14 of the main body 10, and a decorative panel 30
It is covered with a flash window 101.

The strobe mechanism automatically emits light at low brightness and is automatically rechargeable, with a capacitor 7 of a charging circuit disposed close to an exposed film storage chamber 15 of the main body 10.

In this embodiment, the film winding mechanism is a built-in motor 11.
An automatic winding system with winding unit 1 is used.
11, and is an autoloading method that starts when the release button 2 is operated after the back cover 40 is closed.

In case of an autoload error, the "0" display on the film counter of the photographing information display section 122 (to be described later) blinks, and the film feed mark also blinks. When the last frame is photographed, the film is automatically rewound.

Film Rewinding Machine 4 The film rewinding mechanism automatically rewinds the film when the final frame is photographed, and automatically stops when the rewinding is completed. Shooting mode switching button S1 and release button 2 211! It is possible to rewind from the middle of the movie.

For rewinding, the film counter is decremented and the film feed mark is displayed in the opposite direction.

In the case of a Dx film, rewinding is automatically stopped after the leading edge of the film is wound into the cartridge, and in the case of a non-DX film, rewinding is automatically stopped without winding the leading edge of the film into the cartridge.

The back M40 uses a hinge type opening/closing mechanism and is a self-help lock. On the back M40, a control display section 120 for auto date and 1@shadow information is provided via a back cover base plate 44, and a film confirmation window 6 is further formed.

In addition, an LCD part decorative plate 1 piece 0 is attached to the back M40,
There is a date display section on this LCD section board 1s0! 21. Shooting information display section! 22 are provided. Furthermore, the above-mentioned shooting mode switching button S1 and date mode switching button S
2. A correction point selection button S3 for selecting a correction point for year, month, date, and hour, and an addition button S4 for adding up the date display are provided.

Lens barrier The lens barrier 140 is provided in the lens barrel 51 so as to be openable and closable.
It covers the front surface of the photographic lens 50. This lens barrier 140 has two divided barriers 141 and 142, which are automatically moved by a motor (not shown) to overlap 8 parts in one direction.
It moves to open and close. lens barrier 140
When the lens barrel 51 is extended, it opens and is set to the appropriate shooting mode.

One 3V lithium battery 8 is housed in the battery compartment 18 of the main body 10, and can be replaced by opening and closing the battery M41. In addition, one 3V button battery 9, which functions as a tote imprint and also functions as a backup power source for the main power source, is included in the battery storage compartment 45 on the back M40.
It is stored in.

Auto Date As an auto date, a digital clock with liquid crystal display is built into the control display section 12G, and the LCD 8 [
The date display section 121 provided on the ilj board 13G displays "year, month, day,""month, day, year,""day, month, year,""date, hour, minute," or r.
"OFF mode" is switched and displayed, and adjustment is made by operating the date mode switching button S2, the correction point selection button S3 to select the correction point display for year, month, date, and time, and the addition button S4 to add the date display. be done. Also, the date imprinting section 123 performs date imprinting.

2 Lid U Ryojo back! As shown in FIG.
and a film feed display 122c. Also, during strobe charging 122d and self-timer mode 12
2e, automatic light emission mode 122f, forced light emission mode 122g, and non-light emission mode 122h are switched and displayed.

Next, the crimp plate attachment mechanism will be explained in detail based on FIGS. 9 to 14. Figure 9 is a front view of the camera back,
Figure 0 is a sectional view taken along line XX in Figure 9, and Figure 11 is a cross-sectional view taken along line XX in Figure 9.
12 is a cross-sectional view of FIG. 9, FIG. 13 is a plan view of the back cover base plate, and FIG. 14 is a sectional view of the crimp plate.

The back cover 40 is provided with a hinge portion 40a at one end thereof, and a hinge shaft 43 is inserted through the hinge portion 40m to be supported by the main body mounting portion 42. An engaging claw 4 is provided at the other end of the back cover 40.
0b is formed, and this engaging pawl 40b engages with the back cover opening/closing knob 11 provided on the main body IO, and this back cover opening/closing knob 1
Opens and closes with step 1. Rib 40c on the inner wall of the back M40
40e are formed, and these ribs 40c to 40e engage with the recessed portions of the main body 10 to block light.

A finder window 40f is formed in the upper part of the back cover 40, and a film confirmation window 6 is formed in the side part, and an elastic body 201 surrounding the film confirmation window 6 holds the cartridge 1.
is adhered thereto, and a patrone stopper 40h is further formed.

A back cover base plate 44 is fastened to the inside of the back 31i40 with screws 202, and the periphery of the imprinted portion 123 is tightened with a plurality of screws 202 to ensure secure fixation. Back cover base plate 44
A control section storage section 203 and a battery storage chamber 45 are formed between the back cover 40 and the control display section 120 and the button battery 9, respectively.

Power contacts 204m and 204b of the flexible wiring board 204 are connected to the button battery 9, thereby providing power to the control display unit 120. This control display section 120 has a shooting mode switching button S! , date mode switch button S
2. The correction point selection button S3 and the addition button S4 for adding the date display are connected, and the date display section!
21, the photographing information display section 122 is configured to display the information.

This control display section 120 is a flexible wiring board 204c.
It is connected to the main control section disposed in the main body 10 and exchanges information.

Engagement portions 44a are formed in the back cover base plate 44 in the form of rectangular holes at four locations, and the pressure bonding plate 2.degree. 5 is elastically held in the engagement portions 44a. This pressure bonding plate 205 is pressed against the No. 1.4 rail 10a of the main body 10, and a tunnel gap is formed between it and the No. 23 rail 10b, and the photographic film F runs through this tunnel gap. In this embodiment, the pressure bonding plate 205 is made of synthetic resin, but it may also be made of light metal.

The crimp plate 205 has a foot portion 205b having a locking portion 205a.
are integrally formed, and this locking portion 205a is integrally formed with the foot portion 205b.
It is formed at the distal end thereof to protrude in one direction in the engagement direction.

The foot portion 2osb of the crimp plate 205 is formed to correspond to the engaging portion 44a of the back cover base plate 44, and the foot portion 205b is provided with a coil spring 20, which is an elastic body, as shown in FIG.
6 is attached in advance and assembled to the back cover base plate 44.

As shown in FIG. 12, the foot portions 205b of the pressure bonding plate 205 are formed at positions corresponding to the first and fourth rails 10a of the main body 10, so as to maintain the flatness of the pressure bonding plate 205.

The number of the engaging portions 44a of the back cover base plate 44 and the foot portions 205b of the crimping plate 205 is not particularly limited as long as it is two or more.
They are formed at positions corresponding to 0a, and if there are three, one is placed on one side and two on the other, and the springs on both are adjusted to apply an equal load.

The coil spring 206 has a natural length longer than the foot portion 205b, and when attached to the foot portion 205b, the coil spring 206 is attached to the locking portion 205.
The pressure bonding plate 20 is formed with a diameter such that it can be locked on the
It is held in a compressed state between the inner recess 205C of No. 5 and the locking portion 205a.

This crimp plate 205 has a coil spring 2 attached to the leg portion 205b.
06 is attached, attach the foot part 205b to the back cover base plate 44.
, and move it toward the unexposed film storage chamber 14 to lock the locking portion 205a of the foot portion 205b to the locking portion 44a of the back cover base plate 44.

The coil spring 206 attached to the foot portion 205b is formed to have a larger diameter than the engaging portion 44a of the back cover base plate 44.
When the crimping plate 205 is attached, the coil spring 206 is compressed and interposed between the recess 205c of the crimping plate 205 and the recess 44b of the back cover base plate 44, so that the crimping plate 205
is elastically held by the back cover base plate 44. coil spring 2
06 between the recess 205c of the crimp plate 205 and the recess 44b of the back cover base plate 44, the coil spring 2
06 expands and contracts within the length of the foot portion 2Q5b of the crimp plate 205, so there is no need to separately secure the arrangement of the coil spring 206, and the crimp plate is expanded and contracted within the length of the leg portion 2Q5b of the crimp plate 205. The thickness of the mounting mechanism can be reduced.

Furthermore, by forming a recess 205c in the crimp plate 205 and a recess 44b in the back cover base plate 44 to hold the spring 206, the foot 205 of the crimp plate 205
b can be shortened.

When this crimp plate 205 is attached, the button battery 9 is stored in the battery storage chamber 45 and the lid is covered with the battery M2O7. A spring plate 209 having a guide roller 208 is welded to this battery M2O cover at the position of the protrusion 207d on the battery cover, and a part 207a of the battery M2O7 is inserted into the lower part of the pressure bonding plate 205, and the spring plate is fixed with a screw 211. 209 to the back cover 40, and the battery cover 207 to the back cover 40 with screws 212. At this time, a stopper 207b formed on the battery @207 comes into contact with the foot portion 205b of the pressure bonding plate 205 to restrict the movement of the pressure bonding plate 205 in the removal direction. In this way, the retaining member that prevents the crimp plate 205 from being removed is attached to the battery cover 20.
Since it is also used as a cover, there is no need to newly provide a special retaining member, and the number of parts can be reduced, and furthermore, it is easy to secure the installation space.

A protrusion 45a is formed on the bottom wall of the battery storage chamber 45, and a similar protrusion 207c is formed inside the battery M2O7. , 204b make sure contact with the coin-shaped battery.

FIG. 15 shows another embodiment of the pressure bonding plate, and in this embodiment, a locking portion 205d at the tip of the leg portion 205b of the pressure bonding plate 205 is shown.
are formed to protrude from the tip of the leg portion 205b on both sides. The coil spring 206 attached to the leg portion 205b can be reliably held by the locking portion 205d, further improving the workability of assembly.

[Effects of the Invention] As described above, the present invention includes integrally forming a foot portion having a locking portion that engages with the back road side on a crimp plate that obtains flatness of the photographic film. Since the elastic body is installed in advance and the locking part is engaged with and held by the engagement part formed on the back cover side, there is no need to secure a separate space for positioning the elastic body, and the movement direction of the crimp plate ( (optical axis direction), the thickness of the crimp plate attachment mechanism can be made thinner. In addition, since there is a locking part, the elastic body will not fall off during assembly, and the elastic body can be attached at the same time by simply engaging and holding the foot part on the back cover side, improving work efficiency during assembly. do.

Further, in the crimp plate attachment mechanism of the present invention, the foot portion of the crimp plate is inserted into the engaging portion on the back cover side and moved in one direction, the retaining portion is engaged and held in the engaging portion, and the foot portion of the crimp plate is moved in one direction. If the battery lid of the battery housed in the lid restricts the movement of the crimp plate and prevents it from being removed, the battery lid can also be used, and the structure is simple because no special removal prevention member is required.

[Brief explanation of the drawing]

Figures 1 to M4 show a camera to which the present invention is applied; Figure 1 is a front view of the camera, Figure 2 is a rear view of the camera, Figure 3 is a plan view, and Figure 4 is the left side of Figure 3. 5 is a right side view of FIG. 3, FIG. 6 is a Vl-Vl sectional view of FIG. 1, and FIG.
The figure shows the viewfinder display, Figure 8 shows the back cover display, and Figures 9 to 14 show the crimp plate mounting mechanism.
Fig. 9 is a front view of the case back, Fig. 10 is a sectional view taken along the line X-X in Fig. 9, Fig. 11 is a cut-away sectional view of Fig. 9, and Fig. 12 is a cross-sectional view of the
Fig. 13 is a plan view of the back cover base plate.
FIG. 4 is a cross-sectional view of the pressure bonding plate, and FIG. 15 is a cross-sectional view showing another embodiment of the pressure bonding plate. In the figure, reference numeral 40 is the back cover, 44 is the back cover base plate, 44a is the engaging part, 205 is the crimping plate, 205a, 205d are the locking parts, 20
5b is a foot part, -206 is a coil spring, and 207 is a battery cover. Patent applicant: Konica Corporation 13p Figure 1 Figure 4 Figure 2 Melting diagram Figure 22b and Chest diagram 12 Figure 13 W, 14 So

Claims (1)

[Scope of Claims] 1. A foot portion having a locking portion is integrally formed with a pressure bonding plate that positions the photographic film at the tunnel interval, and an elastic body is attached to the foot portion and held by the locking portion, The locking part of the foot part is inserted and engaged with the engaging part formed on the back cover side of the camera body, and the elastic body is interposed between the crimp plate and the back cover side, and the crimp plate is closed. A crimp plate attachment mechanism characterized by elasticity. 2. Insert the foot of the crimp plate into the engaging part on the back cover side, move it in one direction, engage and hold the engaging part with the engaging part, and release the battery stored in the back cover. 2. The crimp plate attachment mechanism according to claim 1, wherein a battery cover restricts movement of said crimp plate to prevent it from coming off. 3. A camera characterized in that a crimp plate is attached to a back cover side of the camera body which is openable and closable, using the crimp plate attachment mechanism according to claim 1 or 2.