JPH11212171A - Data imprinting device for camera and its assembling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data imprinting device for a camera and its assembling method capable of appropriately incorporating an imprinting display panel and a connector rubber for imprinting, especially, and enhancing the degree of freedom in the arrangement of the imprinting display panel and a monitoring display panel. SOLUTION: This data imprinting device 1 for a camera is constituted by arranging the imprinting display panel 3 and the connector rubber for imprinting 19, and the monitoring display panel 4 and a connector rubber for monitoring 11 so as to be back to back with each other with respect to a circuit board 6, and bonding a front case 2a and a rear case 2b while holding the board 6 in such a state between them. In the device 1, plural board caulking pins 41 fixing the board 6 are formed on the case 2b and plural case caulking pins 42 fixing them each other are formed on the case 2a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data imprinting apparatus for a camera, which is mounted on a camera and imprints photographing data such as date and time on a photographed film, and an assembling method thereof.

[0002]

2. Description of the Related Art FIG. 5 is an exploded perspective view of a conventional camera data projection device. This data imprinting device 50
The circuit board 52 is sandwiched between the front case 51a and the back case 51b, and the back case 51b and the circuit board 52 are sandwiched.
And a front case 51.
A monitor display panel 54 is accommodated between the circuit board 52 and the circuit board 52. Further, between the circuit board 52 and the imprinting display panel 53, a pair of imprinting connector rubbers 53, 53 are provided.
Thereby, the circuit board 52 and the imprinting display panel 53 are electrically connected to each other. Similarly, a monitor connector rubber 5 is provided between the circuit board 52 and the monitor display panel 53.
The circuit board 52 and the monitor display panel 54 are electrically connected to each other by the monitor connector rubber 56.

[0003] In this case, the imprinting connector rubber 55 is connected to the circuit board 5 so that the electrical contact connection can be made well.
2 and the imprint display panel 53, and the monitor connector rubber 56 must be strongly sandwiched between the circuit board 52 and the monitor display panel 54. Therefore, in the data imprinting apparatus 50, eight caulking pins 57 are formed inside the front case 51a, and the circuit board 52, the connector rubbers 55 and 56, and the back case 51b are mounted on the front case 51a. In a state of being strongly pressed, the eight caulking pins 57 are heat caulked, and the data imprinting device 50 is
To assemble.

[0004]

In such a conventional data imprinting device 50, when the position of the caulking pin 57 is prioritized in order to apply a uniform pressing force to each of the connector rubbers 55 and 56, an imprinting display panel is provided. There is a problem that the device 53 and the monitor display panel 54 are restricted in position, and the device is likely to be large in size as a whole. Conversely, the imprint display panel 53
When the position of the monitor display panel 54 is prioritized, the arrangement balance of the caulking pins 57 is lost, and
The pressing force to 5,56 becomes uneven. For this reason, in particular, there is a possibility that poor contact may occur between the imprint display panel 53 and the circuit board 52 connected by the pair of imprint connector rubbers 55. Further, at the time of assembling, it is necessary to previously mount the imprint display panel 53 and the imprint connector rubber 55 in the mounting groove of the back panel 51b in a retaining state, which requires parts and the like. was there.

SUMMARY OF THE INVENTION The present invention provides a data projection device for a camera, in which a projection display panel and a projection connector rubber can be appropriately incorporated, and the degree of freedom of arrangement of the projection display panel and the monitor display panel can be increased. It is an object of the invention to provide a device and a method of assembling it.

[0006]

According to the present invention, there is provided a camera data projection apparatus for projecting data on a film, a monitor display panel for monitoring data, a projection display panel, and a monitor display panel for monitoring data. A circuit board for driving the monitor display panel, a projection connector rubber interposed between the circuit board and the projection display panel for electrically contacting and connecting them, and an interposition between the circuit board and the monitor display panel. A monitor connector rubber for electrically contacting and connecting them, and a front case on the monitor display panel side and a rear case on the projection display panel side for accommodating them, and a projection display panel and a projection connector rubber, The monitor display panel and the monitor connector rubber are placed back to back with respect to the circuit board. In this state, the circuit board is sandwiched between the front case and the monitor case. A camera data imprinting device joined to each other back casing to form a plurality of substrates caulking pin for fixing the circuit board on the back case, the front casing and /
Alternatively, a plurality of case caulking pins for fixing these to each other are formed on the back case.

Further, the method for assembling a data projection device for a camera according to the present invention includes a projection display panel for projecting data on a film, a monitor display panel for monitoring data, a projection display panel and a monitor. A circuit board for driving the display panel; a projection connector rubber interposed between the circuit board and the projection display panel for electrically connecting them; and a projection connector rubber interposed between the circuit board and the monitor display panel. A method of assembling a data projection device for a camera, comprising: a monitor connector rubber for electrically contacting and connecting the monitor case; and a front case on the monitor display panel side and a back case on the projection display panel side for housing the rubber. With the imprinting display panel and imprinting connector rubber sandwiched between it and the circuit board, the back case and the circuit board are fixed to each other. In a sandwiched state of the monitor display panel and the monitor connector rubber between the circuit board and the front casing, characterized by being fixed to the front casing and the back casing to each other.

According to these configurations, the back case and the circuit board are fixed to each other with the imprint display panel and the imprinting connector rubber sandwiched between the front case and the circuit board by the board caulking pins. Then, with the case display pin and the monitor connector rubber sandwiched between the circuit board and the front case by the case caulking pin,
Since the front case and the rear case are fixed to each other, the positions of the board caulking pins are not caught by the positions of the front case-side components such as the monitor display panel. It can be provided so that it can be sandwiched by pressing force. On the contrary, this means that the position of the monitor display panel is not affected by the positions of the caulking pins on the substrate, and the degree of freedom of the installation positions of the monitor display panel and the imprint display panel is increased.

On the other hand, in the case of the caulking pin, there is no need to consider the proper holding of the imprinting connector rubber.
The degree of freedom in the number and positions of the caulking pins can be increased accordingly. The board caulking pin is for fixing the back case and the circuit board, and may be relatively short. For this reason, it is possible to provide a structure in which buckling or the like hardly occurs during caulking. In addition, since the caulking operation is performed in two stages, in each caulking operation, if the case is turned over, each display panel and each connector rubber can be mounted from above each case. Do not need. Furthermore, the operation test of the imprinting display panel can be performed before the front case is assembled, that is, before the device is completely assembled, so that the waste of parts can be reduced as much as possible.

In this case, it is preferable that the plurality of substrate caulking pins are arranged so as to surround the imprinting display panel.

According to this configuration, in the assembling work, the imprinting connector rubber can be sandwiched with a uniform pressing force. Thereby, the electrical connection between the projection display panel and the circuit board can be made stable and reliable.

In these cases, it is preferable that at least one of the plurality of substrate caulking pins and the monitor display panel overlap in a plane.

According to this configuration, the entire apparatus can be made compact in the plane direction.

In these cases, a mounting groove for mounting the monitor display panel is formed in the front case, and a crimping projection is formed at an edge of the mounting groove to prevent the monitor display panel mounted in the mounting groove from falling off. Is formed,
preferable.

According to this configuration, even when the front case on which the monitor display panel is mounted is assembled and transported, the monitor display panel falls off from the front case due to vibration or the like at that time.
Alternatively, displacement can be effectively prevented.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a data projection device for a camera according to an embodiment of the present invention; This data imprinting device is incorporated in the back cover of the camera body and displays the date, time, etc. to the outside, and imprints the date, time, etc. (data) on an internal film from the back side.
FIG. 1 is an external view of the data imprinting apparatus, and FIG. 2 is an exploded perspective view thereof. As shown in both figures, the data imprinting apparatus 1 includes an imprint display panel 3, a monitor display panel 4, a lamp 5, a circuit board 6, and the like inside a case 2 composed of a front case 2a and a back case 2b. Provided and configured. On the outer surface of the back case 2b, the surface of the imprinting display panel 3 (upper polarizing plate) is exposed so as to face the film F (see FIG. 3), and on the outer surface of the front case 2a, the surface of the monitor display panel 4 is provided. The (upper polarizing plate) penetrates the back cover Ca of the camera body C and is exposed to the outside.

As shown in FIGS. 2, 3 and 4, the monitor display panel 4 is composed of a liquid crystal display (LCD), and is exposed to the surface of the back cover Ca to give the user date, time, etc. Is displayed. The monitor display panel 4 is pressed and fixed by a monitor connector rubber 11 interposed between the monitor display panel 4 and the circuit board 6 in a state where the monitor display panel 4 is fitted into the monitor mounting groove 10 formed in the front case 2a from the inside. Is exposed to the outside via a monitor opening 12 formed at the bottom of the monitor mounting groove 10.

While a large number of contact terminals 13 connected to the monitor connector rubber 11 are formed on the monitor display panel 4, a large number of contact terminals 14 are also formed on the circuit board 6 correspondingly. I have. That is, since the monitor connector rubber 11 is strongly sandwiched between the monitor display panel 4 and the circuit board 6, the many contact terminals 13 of the monitor display panel 4 and the many contact terminals 14 of the circuit board become
Electrically connected by contact. Note that reference numeral 15 in the drawing denotes a cover glass mounted outside the monitor display panel 4.

The imprinting display panel 3 is a liquid crystal display (LCD) constituting a mask for imprinting the date, time, etc. on the facing film F, and is a transmissive type displaying the date, time, etc. in a transparent portion. belongs to. The imprinting display panel 3 is pressed by a pair of imprinting connector rubbers 19, 19 interposed between the imprinting display panel 3 and the circuit board 6 while being fitted into the imprinting mounting groove 18 formed in the back case 2b from the inside. Fixed. Further, in this state, the imprint display panel 3 is exposed to the outside toward the film F from the imprint opening 20 formed in the groove bottom of the imprint mounting groove 18. Reference numeral 16 in the drawing denotes a light-shielding mask provided on the surface of the projection display panel 3. The light-shielding mask 16 is formed wider than the projection opening 20, and is exposed by light leakage from the projection display panel 3. To prevent

On the imprint display panel 3, a number of contact terminals 21 connected to the imprint connector rubber 19 are formed, and on the circuit board 6, a corresponding number of contact terminals 22 are formed correspondingly. Have been. That is, between the imprint display panel 3 and the circuit board 6, the imprint connector rubber 19,
19 is strongly pinched, so that the imprint display panel 3
Contact terminals 21 of the circuit board 6
2 are electrically connected to each other. The same data is input to the projection display panel 3 and the monitor display panel 4, and both display panels 3 and 4 display the same date and time. The projection display panel 3 is usually 35 m
In order to print data on the film F of m, the structure is sufficiently compact compared to the monitor display panel 4.

The lamp 5 uses the imprinting display panel 3 as a mask to display the date, time, and the like displayed thereon on the film F.
Is exposed (transferred) to the image, and is composed of a tungsten lamp, an LED lamp, and the like. The lamp 5 is disposed coaxially with the upper part of the case 2 with respect to the projection display panel 3 disposed above the case 2.
An optical path 24 penetrating the circuit board 6 and extending from the lamp 5 to the image display panel 3 is formed inside the case 2, and the optical path 24 is bent at a right angle at the upper part. A mirror 25 is provided at the bent portion. That is, the optical axis 26 of the lamp 5 extends parallel to the film F,
It is bent at 5 and crosses the film F at a right angle.

The mirror 25 is formed of a sheet-like member, and is adhered to a mirror mounting portion 27 formed at an angle of 45 ° with respect to the optical axis 26. In the vicinity of the mirror mounting portion 27, an opening 28 for retracting escape is formed, so that distortion of the mirror mounting portion 27 due to pulling of the resin (back case) at the time of molding can be prevented. In order to irradiate the film F with coherent light, a plurality of projecting slit portions 2 are formed on the inner portion of the case 2 forming the optical path 24.
9 are formed. Note that the mirror 25 may be formed of metal or glass.

The circuit board 6 incorporates a control circuit for controlling the driving of the projection display panel 3, the monitor display panel 4, and the lamp 5. As shown in FIG.
As shown in (a), three switch terminals 31, 31, 31 for inputting and setting the date, time, and the like are printed on the surface on the monitor display panel 4 side. Although not shown, a set button, a select button, and the like on the back cover Ca are brought into contact with 31. Further, on the circuit board 6, an imprint signal terminal 32 and two imprint time adjusting terminals 33, 33 are disposed in the vicinity of the switch terminal 31, and the imprint time adjusting terminals 33, 33 are provided. Reference numeral 33 denotes three patterns (30 ms, 45 ms, 6
0 ms) can be fixedly set.

On the other hand, as shown in FIG. 1C, three voltage adjusting terminals 34 for adjusting the applied voltage of the lamp 5 are printed on the surface of the circuit board 6 on the side of the imprint display panel 3. I have. Similarly to the time adjustment terminal 33, the voltage adjustment terminal 34 has a fixed applied voltage of eight patterns (1.7 V to 2.1 V in the embodiment) depending on whether each terminal is connected by solder or not. It can be set to. Since the illuminance of the lamp 5 is proportional to the third power of the voltage applied to the lamp 5, the illuminance of the lamp 5 can be finely adjusted by this voltage adjustment.

Further, as shown in FIG. 2, a crystal oscillator 35 for generating data such as date and the above-described lamp 5 are incorporated in the circuit board 6. IC3 for control
6 is incorporated in a molded state, and a plurality of chip capacitors 37 attached to it are incorporated.

Next, a method of assembling the data imprinting apparatus 1 will be described with reference to FIG. In the data imprinting apparatus 1, the case 2 is heat-swaged such that the circuit board 6 is sandwiched between the front case 2a and the back case 2b.
More specifically, first, the circuit board 6 is heat-sealed on the back case 2b, and then this is turned upside down and heat-heated on the front case 2a. Therefore, four board caulking pins 41 for caulking the circuit board 6 are integrally formed on the inner surface of the back case 2b, and the front case 2a
There is a 6 on the inner surface of
The case caulking pin 42 of the book is formed integrally.

The four substrate caulking pins 41 are erected at four locations corresponding to the corners so as to surround the mounting groove 18 for imprinting. Panel 3 and a pair of imprinting connector rubbers 19, 19
After mounting, the circuit board 6 is strongly pressed against this, and the four board caulking pins 41 are heat caulked. As a result, the pair of imprinting connector rubbers 19, 19 are compressed with a uniform force, that is, firmly sandwiched between the imprinting display panel 3 and the circuit board 6 with a uniform force. Therefore, between the imprinting connector rubber 19 and the contact terminal 21 of the imprinting display panel 3 and the imprinting connector rubber 19
A stable contact state between the circuit board 6 and the contact terminals 22 is maintained. Further, in the plane, one substrate caulking pin 41 is disposed at a position overlapping the monitor display panel 4.

The six case caulking pins 42 are connected to the imprint display panel 3, the monitor display panel 4, and the IC 3 of the circuit board 6.
The four case caulking pins 42 are erected so as to surround the monitor mounting groove 10. In this case, first, the front case 2a is set so that the case caulking pin 42 faces upward,
The monitor display panel 4 is inserted into the monitor mounting groove 10 from above.
Then, the monitor connector rubber 11 is attached. Further, the mirror 25 is bonded to the mirror mounting portion 27. Next, the rear case 2b to which the circuit board 6 is fixed is strongly pressed against the front case 2a, and the six case caulking pins 42 are heat caulked. Thereby, the monitor connector rubber 11
Is compressed with a uniform force, that is, strongly sandwiched between the monitor display panel 4 and the circuit board 6 with a uniform force. Also, the six case caulking pins 42 are attached to the thick front case 2a.
Therefore, the length can be shortened as compared with the case where it is formed on the back case 2b, and the case caulking pin 42 can be made to have a structure that is less likely to buckle.

Reference numeral 43 in the drawing denotes a caulking projection integrally formed on the edge of the monitor mounting groove 10, and the monitor display panel 4 is moved from the monitor mounting groove 10 during assembly and transportation by the caulking projection 43. It is prevented from falling off,
The caulking projection 43 and the monitor connector rubber 11 prevent the monitor display panel 4 from being pushed into the inside even if a pushing force acts on the monitor display panel 4 from the outside.
Reference numeral 44 in the figure is a positioning through hole used for setting the case 2 in an assembling operation or the like.

As described above, according to the present embodiment, the circuit board 6 is heat-sealed to the back case 2b and then to the front case 2a.
The board swaging pins 41 formed on the front case 2b can be arranged without considering interference with the monitor display panel 4 on the front case 2a side. For this reason, it is possible to arrange the projection display panel (substrate caulking pin 41) 3 and the monitor display panel 4 so as to overlap each other in the plane direction, so that the data projection device 1 itself can be made compact. it can. In addition, the board caulking pins 41 can be provided in consideration of the appropriate connection of the imprinting connector rubber 19, and the reliability of the product can be improved.

In this embodiment, the case and the circuit board are thermally caulked with four board caulking pins and six case caulking pins. However, the number of each caulking pin is different from that of the embodiment. It is not limited. Also, the case caulking pin may be formed on the back case.

[0032]

As described above, according to the data projection device for a camera and the method of assembling the same, it is particularly easy to incorporate the projection display panel and the projection connector rubber and to secure the electrical connection. In addition, the degree of freedom in the arrangement of the projection display panel and the monitor display panel can be increased. Therefore, the reliability of the device can be improved, and the size of the device can be reduced.

[Brief description of the drawings]

FIG. 1 is an external view (a rear view, a side view, and a front view) of a data imprinting apparatus according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing an assembling method of the data imprinting apparatus according to the embodiment.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 1 (c).

FIG. 4 is an enlarged sectional view taken along line BB of FIG. 1 (c).

FIG. 5 is an exploded perspective view showing a method of assembling a conventional data imprinting apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 data imprinting device 2 case 2 a front case 2 b back case 3 imprint display panel 4 monitor display panel 6 circuit board 10 monitor mounting groove 11 monitor connector rubber 18 imprint mounting groove 19 printing connector rubber 41 substrate caulking Pin 42 Case caulking pin 43 Caulking protrusion C Camera F Film

Claims (5)

[Claims] 1. An imprint display panel for imprinting data on a film, a monitor display panel for monitoring the data, a circuit board for driving the imprint display panel and the monitor display panel, and the circuit An imprinting connector rubber interposed between the substrate and the imprinting display panel and electrically connecting them, and an imprinting connector rubber interposed between the circuit board and the monitor display panel and electrically contacting them. A monitor connector rubber, a front case on the monitor display panel side and a rear case on the imprint display panel side for accommodating them, the imprint display panel and the imprint connector rubber, and the monitor display panel And the monitor connector rubber are arranged back to back with respect to the circuit board, and in this state, the circuit board is sandwiched between In a data imprinting device for a camera in which the front case and the back case are joined to each other, a plurality of board caulking pins for fixing the circuit board are formed on the back case, and the caulking pins are formed on the front case and / or the back case. A plurality of case caulking pins for fixing the plurality of cases to each other. 2. The data imprinting device for a camera according to claim 1, wherein the plurality of caulking pins are arranged so as to surround the imprinting display panel. 3. The camera data projection device according to claim 1, wherein at least one of the plurality of substrate caulking pins and the monitor display panel overlap in a plane. . 4. A mounting groove for mounting the monitor display panel is formed in the front case, and an edge of the mounting groove prevents the monitor display panel mounted in the mounting groove from dropping off. 4. The data projection device for a camera according to claim 1, wherein a caulking projection is formed. 5. An imprint display panel for imprinting data on a film, a monitor display panel for monitoring the data, a circuit board for driving the imprint display panel and the monitor display panel, and the circuit An imprinting connector rubber interposed between the substrate and the imprinting display panel and electrically connecting them, and an imprinting connector rubber interposed between the circuit board and the monitor display panel and electrically contacting them. In a method for assembling a camera data imprinting device comprising a monitor connector rubber, a front case on the monitor display panel side for accommodating the same, and a rear case on the imprint display panel side, the back case and the circuit board The back case and the circuit board are fixed to each other with the imprint display panel and the imprint connector rubber sandwiched therebetween. Wherein the front case and the rear case are fixed to each other with the monitor display panel and the monitor connector rubber sandwiched between the circuit board and the front case. How to assemble a data imprinting device.