Camera device

Abstract

To provide a camera device that has a structure in which external light is not easily incident on a photographic film before development.SOLUTION: A base frame 30 includes a film ejection unit 32 that is formed with an ejection port 35 through which a photographic film can pass which is sent out from a film storage space S of a film storage unit 31. A light shielding film 50 has a stationary part 51 that is located between a film guide frame 40 and the film ejection unit 32, and a tongue part 52 that extends from the stationary part 51 to block part of the ejection port 35 of the film ejection unit 32 and part of a film path Q of the film guide frame 40. The film ejection unit 32 of the base frame 30 has bosses 71 that extend toward the film guide frame 40. The film guide frame 40 is formed with recesses 47 that can receive the bosses 71 of the film ejection unit 32. The stationary part 51 of the light shielding film 50 is formed with insertion holes 52A, 53B into which the bosses 71 of the film ejection unit 32 can be inserted.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a camera device, and more particularly to a camera device using a photographic film capable of automatically developing after shooting.

Background Art

[0002] Conventionally, a camera using a photographic film capable of automatically developing after shooting, so-called an instant camera, is known (see, for example, Patent Document 1). In such a camera, the photographic film after the developing process is discharged from the discharge slot. However, external light may enter the camera through this discharge slot and expose the photographic film before development. Therefore, there is a need for a technology that can effectively prevent external light from entering the photographic film before development from the portion discharged from the photographic film.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present invention has been made in view of such problems of the prior art, and an object thereof is to provide a camera device having a structure in which external light hardly enters the photographic film before development.

Means for Solving the Problems

[0005] According to a first aspect of the present invention, there is provided a camera device having a structure in which external light is less likely to enter a photographic film before development. The camera device includes a lens barrel that houses at least one lens, a barrel portion that holds the lens barrel, and a base frame to which the barrel portion is attached. The base frame includes a film storage portion in which a film storage space capable of storing a photographic film is formed inside, and a film discharge portion in which a discharge port through which the photographic film sent out from the film storage space of the film storage portion can pass is formed. The camera device further includes a film guide frame having a frame portion in which a film passage through which the photographic film is introduced from the discharge port of the film discharge portion is formed, and an engaging piece that can be engaged with the film discharge portion of the base frame, a fixing portion located between the film guide frame and the film discharge portion of the base frame, and a light-shielding film having a tongue portion extending from the fixing portion so as to block a part of the discharge port of the film discharge portion and a part of the film passage of the film guide frame. The film discharge portion of the base frame has a first boss that extends toward the film guide frame. A first recess capable of receiving the first boss of the film discharge portion is formed in the film guide frame. A first insertion hole through which the first boss of the film discharge portion can be inserted is formed in the fixing portion of the light-shielding film.

[0006] According to a second aspect of the present invention, there is provided a camera device having a structure in which external light is less likely to enter a photographic film before development. The camera device includes a lens barrel that houses at least one lens, a barrel portion that holds the lens barrel, and a base frame to which the barrel portion is attached. The base frame includes a film housing portion in which a film housing space capable of housing a photographic film is formed inside, and a film discharge portion in which a discharge port through which the photographic film sent out from the film housing space of the film housing portion can pass is formed. The camera device further includes a film guide unit that can be attached to the film discharge portion of the base frame. The film guide unit includes a film guide frame having a frame portion in which a film passage through which the photographic film is introduced from the discharge port of the film discharge portion is formed, and an engaging piece that can be engaged with the film discharge portion of the base frame, an attachment portion attached to the film guide frame, and a light-shielding film having a tongue portion extending from the attachment portion so as to block a part of the discharge port of the film discharge portion and a part of the film passage of the film guide frame.

[0007] According to a third aspect of the present invention, there is provided a camera device having a structure in which external light is less likely to enter a photographic film before development. The camera device includes a lens barrel that houses at least one lens, a barrel portion that holds the lens barrel, and a base frame to which the barrel portion is attached. The base frame includes a film housing portion in which a film housing space capable of housing a photographic film is formed inside, and a film discharge portion in which a discharge port through which the photographic film sent out from the film housing space of the film housing portion can pass is formed. The camera device further includes a film guide frame having a frame portion in which a film passage through which the photographic film is introduced from the discharge port of the film discharge portion is formed, and an engagement piece that can be engaged with the film discharge portion of the base frame, and a fiber member that is disposed at an outlet of the film passage of the film guide frame and in which a slit for allowing the photographic film discharged from the film passage to pass through is formed. The slit of the fiber member is curved convexly toward the side opposite to the developing surface of the photographic film passing through the slit.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4A

Figure 4B

Figure 4C

Figure 5A

Figure 5B

Figure 5C

Figure 5D

Figure 6

Figure 7

Figure 8A

Figure 8B

Figure 9

Figure 10

Figure 11

Figure 12A

Figure 12B

Figure 13A

Figure 13B

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the camera device according to the present invention will be described in detail with reference to FIGS. 1 to 18. In FIGS. 1 to 18, the same or corresponding components are denoted by the same reference numerals, and redundant descriptions are omitted. Also, in FIGS. 1 to 18, the scales and dimensions of each component may be exaggerated or some components may be omitted. In the following description, unless otherwise specified, terms such as "first" and "second" are used only to distinguish components from each other and do not represent a specific order or sequence.

[0010] FIG. 1 is a perspective view showing a camera device 1 according to a first embodiment of the present invention. The camera device 1 in the present embodiment is a camera (instant camera) using a photographic film that can be automatically developed after shooting. Needless to say, the present invention can be applied to other than such an instant camera. In the present embodiment, for convenience, the +X direction in FIG. 1 is referred to as "front" or "forward", the -X direction as "rear" or "backward", the +Z direction as "up" or "above", and the -Z direction as "down" or "below".

[0011] As shown in FIG. 1, the camera device 1 includes a front cover 2, a rear cover 3 attached behind the front cover 2, and a top cover 4 sandwiched between the front cover 2 and the rear cover 3. A finder window 5 is formed in the front cover 2, and a flash window 6 is arranged adjacent to the finder window 5. Further, a release button 7 is arranged on the -Z direction side of the finder window 5. A discharge slit 4A extending in the Y direction is formed in the top cover 4, and the photographic film developed after shooting is discharged from the discharge slit 4A.

[0012] FIG. 2 is an exploded perspective view showing a part of components housed in an internal space formed by a front cover 2, a rear cover 3, and a top cover 4. As shown in FIG. 2, the camera device 1 includes a lens barrel 10 housed inside a cylindrical portion 2A (see FIG. 1) of the front cover 2, a cylindrical barrel portion 20 that holds the lens barrel 10, a substantially rectangular parallelepiped base frame 30 disposed behind the barrel portion 20, and a film guide frame 40 attached to the upper end of the base frame 30. The base frame 30 includes a rectangular frame-shaped film storage portion 31 and a film discharge portion 32 provided above the film storage portion 31. Inside the film storage portion 31, a film storage space S capable of storing a photographic film (not shown) containing a developing solution is formed. The barrel portion 20 is attached to the front surface of the film storage portion 31 of the base frame 30 by screws 21.

[0013] The lens barrel 10 in the present embodiment has a structure that can be extended in the +X direction, and a lens (not shown) is housed inside. An engagement protrusion 12 that protrudes radially outward is formed at the rear end portion of the lens barrel 10, and this engagement protrusion 12 is guided by a guide groove 24 formed in the barrel portion 20 and moves in the direction of the optical axis P (X direction) inside the guide groove 24.

[0014] An operation button 8 is disposed near the barrel portion 20. When the user presses this operation button 8 in the -X direction, the engagement protrusion 12 of the lens barrel 10 is pushed out in the +X direction by a lens barrel extension mechanism 9 attached to the barrel portion 20, and the lens barrel 10 is extended in the +X direction (extension direction). When the lens barrel 10 thus pops out from the barrel portion 20 in the +X direction, the power of the camera device 1 is turned on by a switch mechanism (not shown).

[0015] FIG. 3 is a partially exploded perspective view showing the base frame 30 and the components attached thereto. As shown in FIG. 3, a light-shielding film 50 extending in the Y direction as a whole is disposed between the base frame 30 and the film guide frame 40. Further, a fiber member 60 extending in the Y direction is fitted into a recess 41 formed on the upper surface of the film guide frame 40.

[0016] FIG. 4A is a plan view of the base frame 30, FIG. 4B is a cross-sectional view taken along line A-A of FIG. 4A, and FIG. 4C is a cross-sectional view taken along line B-B of FIG. 4A. As shown in FIGS. 4A to 4C, a pair of rollers 33A and 33B extending along the Y direction are accommodated inside a film discharge portion 32 disposed on the +Z direction side of a film accommodation portion 31 of the base frame 30. One of the rollers 33B is biased in the +X direction by a torsion coil spring (not shown).

[0017] The photographic film exposed by photographing is sent from a film accommodation space S in the film accommodation portion 31 to between the pair of rollers 33A and 33B of the film discharge portion 32 by a feeding mechanism (not shown). When the photographic film is pressed from both sides by these rollers 33A and 33B, the developing solution contained therein is developed in the photographic film, and the developing process of the photographic film is performed.

[0018] A recess 34 is formed above the film discharge portion 32 of the base frame 30, and a discharge port 35 through which the photographic film sent through between the rollers 33A and 33B passes is formed on a bottom surface 34A of the recess 34. Further, as shown in FIGS. 4A and 4B, two engaging portions 36 having engaging holes 36A formed therein and a protrusion 37 extending in the +Z direction between these engaging portions 36 are formed on the -X direction side of the recess 34. Further, as shown in FIGS. 4A and 4C, two engaging portions 38 having engaging holes 38A formed therein are formed on the +X direction side of the recess 34.

[0019] As shown in FIGS. 4A and 4B, on the +X direction side of the discharge port 35 of the film discharge portion 32, three bosses 71 (first bosses) protruding in the +Z direction from the bottom surface 34A of the recess 34 are formed. Further, on the bottom surface 34A of the recess 34 on the +X direction side of the discharge port 35, two recesses 72A and 72B extending in the -Z direction are formed. Further, recesses 74 are formed at positions adjacent to the engaging portions 38 described above, respectively.

[0020] FIG. 5A is a plan view of the film guide frame 40, FIG. 5B is a bottom view, FIG. 5C is a cross-sectional view taken along line C-C of FIG. 5A, and FIG. 5D is a cross-sectional view taken along line D-D of FIG. 5B. The film guide frame 40 is attached to the recess 34 of the film discharge portion 32 of the base frame 30 described above, and guides the photographic film sent out through the discharge port 35 of the film discharge portion 32.

[0021] As shown in FIGS. 5A to 5D, the film guide frame 40 includes a frame portion 42 in which a film passage Q into which the photographic film is introduced from the discharge port 35 of the film discharge portion 32 is formed, an engaging piece 43 that can be engaged with the engaging hole 36A of the engaging portion 36 of the film discharge portion 32, and an engaging piece 44 that can be engaged with the engaging hole 38A of the engaging portion 38 of the film discharge portion 32. Further, a positioning hole 45 into which the protrusion 37 of the film discharge portion 32 is inserted is formed in the frame portion 42. The frame portion 42 has a guide surface 46 inclined with respect to the Z direction, and the photographic film introduced into the film passage Q is sent upward while being guided by this guide surface 46.

[0022] By aligning the positioning hole 45 of the film guide frame 40 with the protrusion 37 of the film discharge portion 32 and engaging the engaging pieces 43 and 44 of the film guide frame 40 with the engaging holes 36A and 38A of the engaging portions 36 and 38 of the film discharge portion 32, respectively, the film guide frame 40 is fixed to the film discharge portion 32 of the base frame 30. At this time, the protrusion 37 of the film discharge portion 32 is inserted into the positioning hole 45 of the film guide frame 40.

[0023] As shown in FIGS. 5B, 5C, and 5D, the frame portion 42 of the film guide frame 40 has a surface 42A facing the base frame 30, and three recesses 47 (first recesses) of a size capable of receiving the bosses 71 of the film discharge portion 32 of the base frame 30 are formed on this surface 42A. These recesses 47 are formed at positions corresponding to the bosses 71 of the film discharge portion 32 of the base frame 30, and when the film guide frame 40 is fixed to the film discharge portion 32 of the base frame 30, the bosses 71 of the film discharge portion 32 are inserted into the recesses 47 of the film guide frame 40.

[0024] Further, on the surface 42A of the frame portion 42 of the film guide frame 40 described above, two protrusions 48 protruding in the -Z direction and four pressing portions 49 slightly protruding in the -Z direction are formed. The protrusions 48 are formed at positions corresponding to the recesses 72A, 72B (second recesses) of the film discharge portion 32 of the base frame 30, and when the film guide frame 40 is fixed to the film discharge portion 32 of the base frame 30, the protrusions 48 of the film guide frame 40 are inserted into the recesses 72A, 72B of the film discharge portion 32. The inner diameter of the recess 72A of the film discharge portion 32 is formed to be substantially the same as the outer diameter of the protrusion 48 of the film guide frame 40, but the recess 72B is formed larger than the outer diameter of the protrusion 48 in order to absorb the dimensional tolerance of the protrusion 48 (see FIG. 4A).

[0025] FIG. 6 is a plan view showing the light-shielding film 50. This light-shielding film 50 is a flexible member formed of, for example, resin, is thin in the Z direction, and extends in the Y direction as a whole. As shown in FIG. 6, the light-shielding film 50 includes a fixing portion 51 located between the surface 42A of the frame portion 42 of the film guide frame 40 (see FIG. 5C) and the bottom surface 41A of the recess 34 of the film discharge portion 32 of the base frame 30 (see FIG. 4B), and a tongue portion 52 extending in the -X direction from the fixing portion 51.

[0026] Also, as shown in FIG. 6, insertion holes 53A and 53B (first insertion holes) through which the bosses 71 of the film discharge portion 32 can be inserted are formed in the fixing portion 51 of the light shielding film 50. Further, notches 54 are formed in the fixing portion 51 of the light shielding film 50 to avoid the recesses 72A and 72B of the film discharge portion 32 of the base frame 30 and the protrusion 48 of the film guide frame 40.

[0027] As shown in FIG. 7, such a light shielding film 50 is disposed adjacent to the discharge port 35 of the film discharge portion 32 of the base frame 30, and the tongue portion 52 of the light shielding film 50 closes a part of the discharge port 35 of the film discharge portion 32 and a part of the film passage Q of the film guide frame 40. Therefore, the photographic film F sent upward from the film discharge portion 32 of the base frame 30 is sent upward while contacting the tongue portion 52 of the light shielding film 50. Thereby, a gap is less likely to be generated between the photographic film F, the tongue portion 52 of the light shielding film 50, and the guide surface 46 of the film guide frame 40, and light outside the camera device 1 is prevented from entering the film storage portion 31 of the base frame 30.

[0028] Even in a conventional camera device, a flexible light shielding film is brought into contact with the discharged photographic film to prevent external light from entering the photographic film before exposure. However, such a light shielding film is often fixed by being attached with a double-sided tape in the recess 34 of the film discharge portion 32 in the present embodiment. At this time, it is necessary to perform the attachment work with the double-sided tape while considering many other parts attached to the base frame 30. Also, since it is necessary to sequentially attach a thin and long light shielding film from end to end along the longitudinal direction in the recess 34 of the film discharge portion 32 with little spatial margin, a part of the light shielding film often shifts from an appropriate position during the attachment work. Due to this, the light shielding function of the light shielding film may decrease, and it is conceivable that external light enters the photographic film before development.

[0029] In order to prevent the reduction of the light-shielding function of the light-shielding film due to the pasting operation using such a double-sided tape, the light-shielding film 50 in the present embodiment can be fixed without using a double-sided tape. That is, when assembling the light-shielding film 50, as shown in FIG. 8A, the positions of the insertion holes 53A and 53B of the light-shielding film 50 are aligned with the positions of the bosses 71 of the film discharge portion 32 of the base frame 30, and the bosses 71 of the film discharge portion 32 are inserted into the insertion holes 53A and 53B of the light-shielding film 50, so that, as shown in FIG. 8B, the light-shielding film 50 can be accurately arranged at an appropriate position within the recess 34 of the film discharge portion 32. Note that the inner diameter of the insertion hole 53A of the light-shielding film 50 is formed to be substantially the same as the outer diameter of the boss 71 of the film discharge portion 32, but in order to absorb the dimensional tolerance of the boss 71, the insertion hole 53B is formed to be larger than the outer diameter of the boss 71.

[0030] In this state, the film guide frame 40 into which the fiber member 60 is fitted is attached from above the recess 34 of the film discharge portion 32. That is, the position of the recess 47 of the film guide frame 40 is aligned with the position of the boss 71 of the film discharge portion 32 (simultaneously, the position of the protrusion 48 of the film guide frame 40 is aligned with the positions of the recesses 72A and 72B of the film discharge portion 32), and the engaging pieces 43 and 44 of the film guide frame 40 are respectively engaged with the engaging holes 36A and 38A of the engaging portions 36 and 38 of the film discharge portion 32, so that the film guide frame 40 is fixed to the film discharge portion 32 of the base frame 30, and, as shown in FIGS. 7 and 9, the boss 71 of the film discharge portion 32 is inserted into the recess 47 of the film guide frame 40, and the protrusion 48 of the film guide frame 40 is inserted into the recesses 72A and 72B of the film discharge portion 32.

[0031] As a result, the light-shielding film 50 is fixed with the fixing portion 51 of the light-shielding film 50 sandwiched between the film discharge portion 32 of the base frame 30 and the film guide frame 40, without using a double-sided tape to attach it to the film discharge portion 32 of the base frame 30. At this time, since the bosses 71 of the film discharge portion 32 are inserted into the insertion holes 53A and 53B of the light-shielding film 50, the light-shielding film 50 is positioned at an appropriate position with respect to the film discharge portion 32. Thus, according to the present embodiment, the light-shielding film 50 can be fixed at an appropriate position without using a double-sided tape, so that a decrease in the light-shielding function due to displacement of the light-shielding film 50 within the base frame 30 hardly occurs, and external light hardly enters the photographic film before development.

[0032] In the present embodiment, as shown in FIG. 9, the fixing portion 51 of the light-shielding film 50 sandwiched between the film discharge portion 32 and the film guide frame 40 is pressed against the bottom surface 34A of the recess 34 of the film discharge portion 32 by the pressing portion 49 of the film guide frame 40. By pressing a part of the fixing portion 51 of the light-shielding film 50 toward the bottom surface 34A of the recess 34 of the film discharge portion 32 by such a pressing portion 49, the light-shielding film 50 can be firmly sandwiched and fixed between the pressing portion 49 and the bottom surface 34A of the recess 34. Therefore, displacement of the light-shielding film 50 can be more effectively suppressed. Note that, without forming such a pressing portion 49, the surface 42A of the frame portion 42 of the film guide frame 40 may directly contact the bottom surface 34A of the recess 34.

[0033] Further, in the present embodiment, not only are the bosses 71 of the film discharge portion 32 inserted into the recesses 47 of the film guide frame 40, but also the protrusions 48 of the film guide frame 40 are inserted into the recesses 72A and 72B of the film discharge portion 32, so that displacement between the film guide frame 40 and the base frame 30 is further reduced.

[0034] FIG. 10 is a plan view showing the fiber member 60. The fiber member 60 is formed of a fabric such as felt, and is disposed in the upper recess 41 of the film guide frame 40, that is, at the outlet of the film passage Q. As shown in FIGS. 7 and 10, the fiber member 60 is formed with a slit 61 for passing the photographic film F discharged from the film passage Q of the film guide frame 40 so as to extend in the Y direction. In the present embodiment, the central portion 61A of the slit 61 in the Y direction is located on the -X direction side with respect to both end portions 61B, and is curved convexly when viewed along the -X direction. As described above, the photographic film F introduced into the film passage Q of the film guide frame 40 passes through the slit 61 of the fiber member 60 and is discharged to the outside of the camera device 1 from the discharge slit 4A (see FIG. 1) of the top cover 4.

[0035] When the photographic film passes through the slit of such a fiber member, a gap may occur between the fiber member and the photographic film. When such a gap occurs, light from the outside enters the film storage portion 31 of the base frame 30 through this gap. Therefore, it is required that a gap hardly occurs between the fiber member and the photographic film when the photographic film passes through the slit of the fiber member.

[0036] Here, after shooting, the photographic film is pressed by rollers 33A and 33B in the film discharge portion 32 of the base frame 30, so that the developing solution contained in the photographic film is developed within the photographic film, and the developing process of the photographic film is performed. However, the inventors have discovered that the photographic film is likely to be convexly curved toward the side opposite to the developing surface by this developing process. Based on this finding, the inventors have found that by making the shape of the slit 61 of the fiber member 60 correspond to the shape of the photographic film F after development, it is possible to prevent a gap from occurring between the fiber member 60 and the photographic film F as much as possible. In the present embodiment, the shape of the slit 61 of the fiber member 60 is convexly curved toward the side opposite to the developing surface of the photographic film F, that is, in the -X direction, corresponding to the shape of the photographic film F after development. With such a configuration, a gap is less likely to occur between the photographic film F after development and the fiber member 60, and external light is less likely to enter the film accommodating portion 31 of the base frame 30.

[0037] FIG. 11 is a partially exploded perspective view showing some components in a camera device according to a second embodiment of the present invention. In the above-described first embodiment, the fixing portion 51 of the light-shielding film 50 is sandwiched and fixed between the film discharge portion 32 and the film guide frame 40 to suppress displacement of the light-shielding film 50 within the base frame 30. However, in the present embodiment, as described below, displacement of the light-shielding film 50 within the base frame 30 is suppressed by integrating the light-shielding film and the film guide frame. This will be described in more detail below.

[0038] In the present embodiment, a light-shielding film 150 corresponding to the light-shielding film 50 of the first embodiment, a film guide frame 140 corresponding to the film guide frame 40 of the first embodiment, and a fiber member 60 are unitized to form a film guide unit 110. After assembling this film guide unit 110 in advance, it is attached to the film discharge portion 132 of the base frame 130. By doing so, it becomes unnecessary to attach the light-shielding film 50 to the film discharge portion 132 of the base frame 130.

[0039] FIG. 12A is a plan view of the base frame 130, and FIG. 12B is a cross-sectional view taken along line E-E of FIG. 12A. As shown in FIGS. 12A and 12B, a recess 34 is formed above the film discharge portion 132 of the base frame 130, and a discharge port 35 is formed in the bottom surface 34A of this recess 34. On the bottom surface 34A of the recess 34 on the +X direction side of this discharge port 35, three recesses 172A, 172B (third recesses) extending in the -Z direction are formed.

[0040] FIG. 13A is a plan view of the film guide frame 140, and FIG. 13B is a cross-sectional view taken along line F-F of FIG. 13A. The frame portion 42 of the film guide frame 140 has a surface 142A facing the base frame 130, and three bosses 148 (second bosses) protruding in the -Z direction are formed on this surface 142A. These bosses 148 are formed at positions corresponding to the recesses 172A, 172B of the film discharge portion 132 of the base frame 130, and when the film guide unit 110 is fixed to the film discharge portion 132 of the base frame 30, the bosses 148 of the film guide frame 140 are inserted into the recesses 172A, 172B of the film discharge portion 132. Note that the inner diameter of the recess 172A of the film discharge portion 132 is formed to be substantially the same as the outer diameter of the boss 148 of the film guide frame 140, but in order to absorb the dimensional tolerance of the boss 148, the recess 172B is formed larger than the outer diameter of the boss 148 (see FIG. 12A).

[0041] FIG. 14 is a plan view showing the light-shielding film 150. This light-shielding film 150 is a flexible member formed of, for example, resin, is thin in the Z direction, and extends in the Y direction as a whole. As shown in FIG. 14, the light-shielding film 150 includes an attachment portion 151 to which a double-sided tape is attached on the side facing the film guide frame 140, and a tongue portion 152 extending in the -X direction from the attachment portion 151. Further, as shown in FIG. 14, a notch 154 for avoiding the boss 148 of the film guide frame 140 is formed in the attachment portion 151 of the light-shielding film 150.

[0042] In such a configuration, as shown in FIG. 15, using the double-sided tape of the attachment portion 151 of the light-shielding film 150, the attachment portion 151 of the light-shielding film 150 is attached to the surface 142A facing the base frame 130 of the film guide frame 140. At this time, the position of the light-shielding film 150 is adjusted so that the boss 148 of the film guide frame 140 is located within the notch 154 of the light-shielding film 150. In this way, the film guide unit 110 is completed by fitting the fiber member 60 into the recess 41 of the film guide frame 140 to which the light-shielding film 150 is attached.

[0043] Then, the position of the boss 148 of the film guide frame 140 in this film guide unit 110 is adjusted to match the positions of the recesses 172A and 172B of the film discharge portion 132, and the engaging pieces 43 and 44 of the film guide frame 140 are respectively engaged with the engaging holes 36A and 38A of the engaging portions 36 and 38 of the film discharge portion 132. Thus, the film guide unit 110 is fixed to the film discharge portion 132 of the base frame 130, and the boss 148 of the film guide frame 140 is inserted into the recesses 172A and 172B of the film discharge portion 132. Thereby, the light-shielding film 150 can be fixed between the film discharge portion 132 of the base frame 130 and the film guide frame 140.

[0044] As described above, according to the present embodiment, since the attachment portion 151 of the light-shielding film 150 is attached to the film guide frame 140 that is less likely to be affected spatially by other members, a film guide unit 110 can be obtained in which the light-shielding film 150 is accurately attached at an appropriate position on the film guide frame 140. By attaching such a film guide unit 110 to the film discharge portion 132 of the base frame 130, the light-shielding film 150 can be accurately fixed at an appropriate position between the bottom surface 34A of the recess 34 of the film discharge portion 132 of the base frame 130 and the surface 142A of the film guide frame 140. Therefore, it is less likely that the light-shielding function deteriorates due to displacement of the light-shielding film 150, and it is difficult for external light to enter the photographic film before development.

[0045] FIG. 16 is a partially exploded perspective view showing some components in the camera device according to the third embodiment of the present invention. The film guide unit 210 in the present embodiment has the same configuration as the film guide unit 110 of the second embodiment except for the light-shielding film 250.

[0046] FIG. 17 is a plan view showing the light-shielding film 250 of the present embodiment. This light-shielding film 250 is also a flexible member formed of, for example, resin, similar to the light-shielding films 50 and 150. As shown in FIG. 17, the light-shielding film 250 includes an attachment portion 251 to which a double-sided tape is attached on the side facing the film guide frame 140, and a tongue portion 252 extending in the -X direction from the attachment portion 251. Further, as shown in FIG. 17, through holes 253A and 253B (second through holes) through which the bosses 148 on both sides of the film guide frame 140 can be inserted, and a notch 254 for avoiding the boss 148 at the center of the film guide frame 140 are formed in the attachment portion 251 of the light-shielding film 250.

[0047] In such a configuration, as shown in FIG. 18, the attachment portion 251 of the light-shielding film 250 is attached to the surface 142A facing the base frame 130 of the film guide frame 140 using the double-sided tape of the attachment portion 251 of the light-shielding film 250. At this time, by aligning the positions of the through holes 253A and 253B of the light-shielding film 250 with the positions of the bosses 148 of the film guide frame 140 and inserting the bosses 148 of the film guide frame 140 into the through holes 253A and 253B of the light-shielding film 250, the light-shielding film 250 can be accurately attached to an appropriate position on the film guide frame 140. The film guide unit 210 is completed by fitting the fiber member 60 into the recess 41 of the film guide frame 140 to which the light-shielding film 250 is attached in this way. The inner diameter of the through hole 253A of the light-shielding film 250 is formed to be substantially the same as the outer diameter of the boss 148 of the film guide frame 140, but the through hole 253B is formed to be larger than the outer diameter of the boss 148 in order to absorb the dimensional tolerance of the boss 148.

[0048] Thus, according to this embodiment, not only is the attachment portion 251 of the light-shielding film 250 attached to the film guide frame 140 that is hardly affected spatially by other members, but also the bosses 148 of the film guide frame 140 are inserted into the insertion holes 253A and 253B of the light-shielding film 250. Therefore, the light-shielding film 250 can be accurately attached to an appropriate position on the film guide frame 140. Accordingly, a film guide unit 210 in which the light-shielding film 250 is accurately attached to an appropriate position on the film guide frame 140 can be obtained. By attaching such a film guide unit 210 to the film discharge portion 132 of the base frame 130, the light-shielding film 250 can be accurately fixed to an appropriate position between the bottom surface 34A of the recess 34 of the film discharge portion 132 of the base frame 130 and the surface 142A of the film guide frame 140. For this reason, a decrease in the light-shielding function due to displacement of the light-shielding film 250 hardly occurs, and external light hardly enters the photographic film before development.

[0049] As described above, according to the first aspect of the present invention, there is provided a camera device having a structure in which external light is less likely to enter a photographic film before development. This camera device includes a lens barrel that houses at least one lens, a barrel portion that holds the lens barrel, and a base frame to which the barrel portion is attached. The base frame includes a film housing portion in which a film housing space capable of housing a photographic film is formed inside, and a film discharge portion in which a discharge port through which the photographic film sent out from the film housing space of the film housing portion can pass is formed. The camera device further includes a film guide frame having a frame portion in which a film passage through which the photographic film is introduced from the discharge port of the film discharge portion is formed, and an engaging piece that can be engaged with the film discharge portion of the base frame, a fixing portion located between the film guide frame and the film discharge portion of the base frame, and a light-shielding film having a tongue portion extending from the fixing portion so as to block a part of the discharge port of the film discharge portion and a part of the film passage of the film guide frame. The film discharge portion of the base frame has a first boss extending toward the film guide frame. A first recess capable of receiving the first boss of the film discharge portion is formed in the film guide frame. A first insertion hole through which the first boss of the film discharge portion can be inserted is formed in the fixing portion of the light-shielding film.

[0050] According to such a configuration, by aligning the position of the first insertion hole of the light-shielding film with the position of the first boss of the film discharge portion of the base frame and inserting the first boss of the film discharge portion into the first insertion hole of the light-shielding film, the light-shielding film can be disposed at an appropriate position in the film discharge portion. In this state, by aligning the position of the first recess of the film guide frame with the position of the first boss of the film discharge portion of the base frame and engaging the engaging piece of the film guide frame with the film discharge portion, the film guide frame is fixed to the film discharge portion of the base frame, and the first boss of the film discharge portion is inserted into the first recess of the film guide frame. Thereby, the fixing portion of the light-shielding film is sandwiched and fixed between the film discharge portion of the base frame and the film guide frame. Thus, according to the above-described configuration, without using a double-sided tape, the light-shielding film can be accurately fixed at an appropriate position, so that a decrease in the light-shielding function due to displacement of the light-shielding film hardly occurs, and external light hardly enters the photographic film before development.

[0051] The film guide frame may further have a pressing portion that presses a part of the fixing portion of the light-shielding film toward the film discharge portion of the base frame. By pressing a part of the fixing portion of the light-shielding film toward the film discharge portion of the base frame with such a pressing portion, the light-shielding film can be firmly sandwiched and fixed between the pressing portion and the film discharge portion, so that displacement of the light-shielding film can be more effectively suppressed.

[0052] The film guide frame may have a protrusion protruding toward the film discharge portion of the base frame. Further, a second recess capable of receiving the protrusion of the film guide frame may be formed in the film discharge portion of the base frame. In this case, not only the first boss of the film discharge portion described above is inserted into the first recess of the film guide frame, but also the protrusion of the film guide frame is inserted into the second recess of the film discharge portion, so that the displacement between the film guide frame and the base frame is further reduced. At this time, a notch for avoiding the protrusion of the film guide frame and the second recess of the film discharge portion may be formed in the fixing portion of the light shielding film.

[0053] According to a second aspect of the present invention, there is provided a camera device having a structure in which external light is less likely to enter a photographic film before development. The camera device includes a lens barrel that houses at least one lens, a barrel portion that holds the lens barrel, and a base frame to which the barrel portion is attached. The base frame includes a film storage portion in which a film storage space capable of storing a photographic film is formed inside, and a film discharge portion in which a discharge port through which the photographic film sent out from the film storage space of the film storage portion can pass is formed. The camera device further includes a film guide unit attachable to the film discharge portion of the base frame. The film guide unit includes a film guide frame having a frame portion in which a film passage through which the photographic film is introduced from the discharge port of the film discharge portion is formed, and an engagement piece engageable with the film discharge portion of the base frame, a sticking portion stuck to the film guide frame, and a tongue portion extending from the sticking portion so as to block a part of the discharge port of the film discharge portion and a part of the film passage of the film guide frame.

[0054] According to such a configuration, since the pasting portion of the light-shielding film is pasted to the film guide frame that is less likely to be spatially affected by other members, a film guide unit in which the light-shielding film is accurately pasted at an appropriate position on the film guide frame can be obtained. By attaching such a film guide unit to the film discharge portion of the base frame, the light-shielding film can be accurately fixed at an appropriate position between the film discharge portion of the base frame and the film guide frame. Therefore, it is less likely that the light-shielding function will deteriorate due to misalignment of the light-shielding film, and it is less likely that external light will enter the photographic film before development.

[0055] The film guide frame may have a second boss extending toward the film discharge portion of the base frame. A third recess capable of receiving the second boss of the film guide frame may be formed in the film discharge portion of the base frame. In this case, since the second boss of the film guide frame is inserted into the third recess of the film discharge portion, misalignment between the film guide frame and the base frame is reduced.

[0056] In this case, a second insertion hole through which the second boss of the film guide frame can be inserted may be formed in the pasting portion of the light-shielding film. According to such a configuration, not only is the pasting portion of the light-shielding film pasted to the film guide frame that is less likely to be spatially affected by other members, but also the second boss of the film guide frame is inserted into the second insertion hole of the light-shielding film, so that the light-shielding film can be accurately pasted at an appropriate position on the film guide frame.

[0057] The pasting portion of the light-shielding film preferably has a double-sided tape on the side facing the film guide frame.

[0058] The above camera device may further include a fiber member disposed at an exit of the film passage of the film guide frame and having a slit formed therein for allowing a photographic film discharged from the film passage to pass therethrough. The slit of the fiber member may be convexly curved toward a side opposite to a developing surface of the photographic film passing through the slit. Thus, by curving the slit of the fiber member convexly toward a side opposite to the developing surface of the photographic film, the shape of the slit of the fiber member can be made to correspond to the shape of the photographic film after development. As a result, a gap is less likely to occur between the photographic film after development and the fiber member, and external light is less likely to enter the film accommodating portion of the base frame.

[0059] According to a third aspect of the present invention, there is provided a camera device having a structure in which external light is less likely to enter a photographic film before development. The camera device includes a lens barrel that houses at least one lens, a barrel portion that holds the lens barrel, and a base frame to which the barrel portion is attached. The base frame includes a film accommodating portion in which a film accommodating space capable of accommodating a photographic film is formed therein, and a film discharging portion in which a discharge port through which the photographic film sent out from the film accommodating space of the film accommodating portion can pass is formed. The camera device further includes a film guide frame having a frame portion in which a film passage through which the photographic film is introduced from the discharge port of the film discharging portion is formed, and an engaging piece that can be engaged with the film discharging portion of the base frame, and a fiber member disposed at an exit of the film passage of the film guide frame and having a slit formed therein for allowing a photographic film discharged from the film passage to pass therethrough. The slit of the fiber member is convexly curved toward a side opposite to a developing surface of the photographic film passing through the slit.

[0060] Thus, by curving the slit of the fiber member convexly toward the side opposite to the developing surface of the photographic film, the shape of the slit of the fiber member can be made to correspond to the shape of the photographic film after development. As a result, a gap is less likely to occur between the photographic film after development and the fiber member, and external light is less likely to enter the film accommodating portion of the base frame.

[0061] Although the preferred embodiments of the present invention have been described so far, it goes without saying that the present invention is not limited to the above-described embodiments and may be implemented in various different forms within the scope of its technical idea.

Explanation of Reference Numerals

[0062] 1 Camera device 2 Front cover 3 Rear cover 4 Top cover 4A Discharge slit 10 Lens barrel 20 Barrel portion 30, 130 Base frame 31 Film accommodating portion 32, 132 Film discharge portion 33A, 33B Roller 34 Recess 34A Bottom surface 35 Outlet 36, 38 Engaging portion 36A, 38A Engaging hole 37 Projection 40, 140 Film guide frame 41 Recess 42 Frame portion 43, 44 Engaging piece 46 Guide surface 47 (First) recess 48 Projection 49 Pressing portion 50, 150, 250 Light-shielding film 51 Fixing portion 52, 152, 252 Tongue portion 53A, 53B (First) insertion hole 54,154 Notch 60 Fiber member 61 Slit 71 (First) boss 72A, 72B (Second) recess 110, 210 Film guide unit 148 (Second) boss 151, 251 Attachment part 172A, 172B (Third) recess 253A, 253B (Second) insertion hole 254 Notch F Photo film Q Film passage S Film storage space

Claims

1. A lens barrel that houses at least one lens, A barrel portion that holds the lens barrel, A base frame to which the barrel portion is attached, and A film storage portion in which a film storage space capable of storing a photographic film is formed inside, A film discharge portion in which a discharge port through which the photographic film sent out from the film storage space of the film storage portion can pass is formed And a base frame including A film guide frame having a film passage formed therein through which the photographic film is introduced from the discharge port of the film discharge portion, and an engaging piece that can engage with the film discharge portion of the base frame, A light-shielding film having a fixing portion located between the film guide frame and the film discharge portion of the base frame, and a tongue portion extending from the fixing portion so as to block a part of the discharge port of the film discharge portion and a part of the film passage of the film guide frame And comprising The film discharge portion of the base frame has a first boss extending toward the film guide frame, The film guide frame is formed with a first recess capable of receiving the first boss of the film discharge portion, A first insertion hole through which the first boss of the film discharge portion can be inserted is formed in the fixing portion of the light-shielding film, A camera device.

2. The camera device according to claim 1, wherein the film guide frame further has a pressing portion that presses a part of the fixing portion of the light-shielding film toward the film discharge portion of the base frame.

3. The film guide frame has a protrusion protruding toward the film discharge portion of the base frame, In the film discharge portion of the base frame, a second recess capable of receiving the protrusion of the film guide frame is formed. The camera device according to claim 1 or 2.

4. In the fixing portion of the light shielding film, a notch is formed to avoid the protrusion of the film guide frame and the second recess of the film discharge portion. The camera device according to claim 3.

5. A lens barrel housing at least one lens, A barrel portion for holding the lens barrel, A base frame to which the barrel portion is attached, A film storage portion in which a film storage space capable of storing a photographic film is formed inside, A film discharge portion in which an outlet through which the photographic film sent out from the film storage space of the film storage portion can pass is formed And a base frame including A film guide unit attachable to the film discharge portion of the base frame And comprising The film guide unit A film guide frame having a frame portion in which a film passage through which the photographic film is introduced from the outlet of the film discharge portion is formed, and an engaging piece engageable with the film discharge portion of the base frame, An adhesive portion attached to the film guide frame, and a tongue portion extending from the adhesive portion so as to block a part of the outlet of the film discharge portion and a part of the film passage of the film guide frame And a film guide unit including a light shielding film And comprising a camera device.

6. The film guide frame has a second boss extending toward the film discharge portion of the base frame. In the film discharge portion of the base frame, a third recess capable of receiving the second boss of the film guide frame is formed. The camera device according to claim 5.

7. In the attachment portion of the light shielding film, a second insertion hole through which the second boss of the film guide frame can be inserted is formed. The camera device according to claim 6.

8. The attachment portion of the light shielding film has a double-sided tape on the side facing the film guide frame. The camera device according to any one of claims 5 to 7.

9. Further provided is a fiber member disposed at an outlet of the film passage of the film guide frame and having a slit formed therein for allowing a photographic film discharged from the film passage to pass through. The slit of the fiber member is curved convexly toward the side opposite to the developing surface of the photographic film passing through the slit. The camera device according to any one of claims 1 to 8.

10. A lens barrel housing at least one lens, A barrel portion for holding the lens barrel, A base frame to which the barrel portion is attached, A film storage portion having a film storage space inside which a photographic film can be stored, A film discharge portion having a discharge port through which the photographic film sent out from the film storage space of the film storage portion can pass, And a base frame including A frame portion having a film passage formed therein through which the photographic film is introduced from the discharge port of the film discharge portion, and a film guide frame having an engaging piece engageable with the film discharge portion of the base frame. A fiber member disposed at an exit of the film passage of the film guide frame and having a slit formed therein for allowing a photographic film discharged from the film passage to pass therethrough, and comprising wherein the slit of the fiber member is curved convexly toward a side opposite to a developing surface of the photographic film passing through the slit, a camera device.

Images