Abstract:
A camera includes: a camera main body; a slide cover that makes a sliding movement between a camera non-operating position, at which, at least, a viewfinder objective lens window, a viewfinder eyepiece window, a function selection unit operated to select camera functions at the camera main body are covered, and a camera operating position at which the viewfinder objective lens window, the viewfinder eyepiece window and the function selection unit are exposed; and a loading unit that allows loading and removal of an image recording medium, regardless of whether the slide cover is at the operating position or the non-operating position.

Description:
INCORPORATION BY REFERENCE 
     The disclosures of the following priority applications are herein incorporated by reference: 
     Japanese Patent Application No. 10-222926 filed Aug. 6, 1998 
     Japanese Patent Application No. 10-309024 filed Oct. 29, 1998 
     Japanese Patent Application No. 10-309025 filed Oct. 29, 1998 
     Japanese Patent Application No. 10-309026 filed Oct. 29, 1998 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a camera provided with a slide cover. 
     2. Description of the Related Art 
     There are cameras having a sheath-type (capsule-type) slide cover provided to protect the taking lens and the like in the prior art (disclosed in Japanese Laid-Open Patent Publication No. H10-104711 and Japanese Laid-open Patent Publication No. H10-104712, for instance). In these cameras, the access lid of the film cartridge chamber in which a film cartridge is loaded is covered by a slide cover when the slide cover is closed. 
     Thus, when loading or replacing a film cartridge while the camera is not in an operating state (while the slide cover is closed), the slide cover must be slid until the access lid of the film cartridge chamber becomes exposed to the outside of the slide cover or the slide cover must be completely disengaged from the camera main body. This poses a problem in that loading or replacing the film cartridge becomes a time-consuming, inconvenient procedure. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a camera in which a film cartridge can be loaded or removed without having to move or disengage the slide cover when the camera is not in an operating state. 
     In order to achieve the object described above, a camera according to the present invention, comprises: a camera main body; a slide cover that makes a sliding movement between a camera non-operating position, at which, at least, a viewfinder objective lens window, a viewfinder eyepiece window, a function selection unit operated to select camera functions at the camera main body are covered, and a camera operating position at which the viewfinder objective lens window, the viewfinder eyepiece window and the function selection unit are exposed; and a loading unit that allows loading and removal of an image recording medium, regardless of whether the slide cover is at the operating position or the non-operating position. 
     Another camera comprises: a camera main body; a sheath shaped slide cover that makes a sliding movement between a camera non-operating position at which, at least a lens barrel, a viewfinder objective lens window, a viewfinder eyepiece window and a battery chamber lid that opens and closes a battery chamber at the camera main body are covered and a camera operating position at which the lens barrel, the viewfinder objective lens window, the viewfinder eyepiece window and the battery chamber lid are exposed, the camera main body being sheathed into the sheath shaped slide cover at the camera non-operating position; and a cartridge chamber lid that opens and closes a film cartridge chamber where a film cartridge is loaded and is provided in an area of the camera main body that is exposed at all times regardless of the position of the slide cover. 
     In this camera, preferably, the battery chamber lid and the cartridge chamber lid are provided on a single surface of the camera main body. 
     Also, preferably, a tripod mount that secures the camera to a tripod and is provided at the cartridge chamber lid. 
     Also, preferably, the camera further comprises a flash light-emitting unit, and the flash light-emitting unit is provided at a predetermined position on the slide cover so that the flash light-emitting unit is positioned further away from the lens barrel when the slide cover is at the camera operating position compared to when the slide cover is at the camera non-operating position. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1A shows the camera in an operating state, viewed from above; 
     FIG. 1B is a front view of the camera in an operating state; 
     FIG. 1C shows the camera in an operating state, viewed from below; 
     FIG. 2 is a rear view of the camera in an operating state; 
     FIG. 3A is a top view of the camera in a non-operating state; 
     FIG. 3B is a front view of the camera in a non-operating state; 
     FIG. 3C is a bottom view of the camera in a non-operating state; 
     FIGS. 4A through 4C illustrate the film cartridge replacement procedure, with FIG. 4A presenting a front view, FIG. 4B presenting a left side elevation and FIG. 4C presenting a bottom view; 
     FIGS. 5A through 5C illustrate the battery replacement procedure, with FIG. 5A presenting a front view, FIG. 5B presenting a left side elevation and FIG. 5C presenting a bottom view; 
     FIG. 6 is an exploded perspective of the camera in an embodiment of the present invention; 
     FIG. 7 is a front view of the camera above in a state in which the slide cover is at the closed position; 
     FIG. 8 is a view similar to that presented in FIG. 2, illustrating a state in which the slide cover is at the open position; 
     FIG. 9 is a rear view of the camera in a state in which the slide cover is at the open position; 
     FIG. 10 is a perspective illustrating the end portion of the slide cover in the closing direction; 
     FIG. 11 is a perspective illustrating one end of the camera main body; 
     FIG. 12 is a sectional view of a side surface of the camera; 
     FIG. 13 is a sectional view illustrating the end portion of the slide cover in the closing direction; 
     FIG. 14 is a perspective illustrating the method for mounting the slide cover at the camera main body; 
     FIG. 15 is a sectional view illustrating details of the click mechanism; and 
     FIG. 16 is a sectional view illustrating details of another click mechanism. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     First Embodiment 
     The following is an explanation of the first embodiment of the present invention given in reference to FIG.  1 A through FIG.  5 C. FIGS. 1A through 1C and FIG. 2 illustrate external views of the camera in an operating or using state, with FIG. 1B presenting a front view of the camera  1 , FIG. 1A presenting a top view of the camera  1  from above (direction A in FIG. 1B) and FIG. 1C presenting a bottom view of the camera  1  from below (direction B in FIG.  1 B). In addition, FIG. 2 is a rear view of the camera. FIGS. 3A through 3C are external views of the camera in a non-operating or non-using state, with FIG. 3A presenting a top view, FIG. 3B presenting a front view and FIG. 3C presenting a bottom view. 
     A sheath-type slide cover  2  is a sheath-shaped or capsule-type cover with a rectangular cross section having a bottom, and a camera main body  3  is housed in its hollow portion. A guide (not shown) that connects the slide cover  2  and the camera main body  3  is provided between the slide cover  2  and the camera main body  3 , and the slide cover  2  is capable of moving between a camera operating position, at which the camera main body  3  is exposed, as illustrated in FIGS. 1A through 2, and a camera non-operating position, at which the camera main body  3  is covered by the slide cover  2  and housed inside the slide cover  2  (in the hollow portion) as illustrated in FIGS. 3A through 3C. When the slide cover  2  is closed as illustrated in FIGS. 3A through 3C, the slide cover  2  merges with a fixed cover unit  36  which is formed as an integrated part of the camera main body  3  to become part of the camera&#39;s external form. In the following explanation, the position of the slide cover  2  in FIGS. 1A through 2 is referred to as the camera operating position and the position of the slide cover  2  in FIGS. 3A through 3C is referred to as the camera non-operating position. 
     When the slide cover  2  is opened to the camera operating position, as illustrated in FIGS. 1A through 2 during a camera operation, a lens barrel  4  that holds a taking lens  46  is delivered or protruded to a specific position from the camera main body  3  and the camera enters a photographing standby state. A shutter release button  5  and a selector switch  6  with which the print type is selected for a printing operation are provided at the upper side of the camera main body  3 . The print types that may be selected include a wide type H, a standard type C and a panorama type P, and when one of them is selected through the selector switch  6 , the frame of the visual field at the viewfinder optical system is switched in correspondence to the selected print type. 
     At the bottom side of the camera main body  3 , a battery chamber lid  7  that opens/closes a battery chamber (not shown) where a battery for power supply is loaded is provided, and a cartridge chamber lid  8  that opens/closes a film cartridge chamber where a film cartridge is loaded, is provided at the bottom side of the fixed cover unit  36  provided adjacent to the battery chamber lid  7 . At the cartridge chamber lid  8 , a tripod mount (female mounting screw)  15  for securing the camera to a tripod is provided. It is to be noted that reference number  9  indicates a lock release switch that is operated to release the cartridge chamber lid  8  from a locked state. 
     As illustrated in FIG. 1B, an AF element  10 , a viewfinder objective window  11  and a window  12  for the AF auxiliary lamp that prevents the red-eye phenomenon during a flash photographing operation and enables rangefinding (focusing) with a dark subject are provided above the lens barrel  4 . In addition, reference number  13  indicates a remote control light-receiving window and reference number  14  indicates an automatic exposure element that measures the brightness of a subject. A flash light-emitting unit  25  is secured at the slide cover  2 , and the flash light-emitting unit  25  moves as part of the slide cover  2  as the slide cover  2  opens and closes. It is to be noted that in order to achieve red-eye prevention during a flash photographing operation, the flash light-emitting unit  25  is provided at the right end of the slide cover  2 . In other words, by providing the flash light-emitting unit  25  at the slide cover  2 , a large distance can be assured between the flash light-emitting unit  25  and the lens barrel  4  when the slide cover  2  is opened as illustrated in FIG. 1B in the camera operating state to achieve a further improvement in the red-eye prevention effect during flash photographing. 
     In addition, as illustrated in FIG. 2, a display device  16 , on which the date/time, the number of photographs having been taken, the photographing mode and the like are displayed, and switches  17  and  18  that are operated to switch or set the date/time, the photographing mode and the like are provided at the rear side of the camera main body  3 . A viewfinder eyepiece window  19 , a eyesight adjustment lever  20  used to adjust the diopter of the viewfinder and a zoom switch  21  are provided above the display device  16 . It is to be noted that reference number  2   a  indicates a circular opening formed at the slide cover  2 , and the user looks into the viewfinder eyepiece window  19  through the opening  2   a.    
     Furthermore, the power switch is turned off when the slide cover  2  is moved in the closing direction, and a stopper (not shown) restricts the movement of the slide cover  2  until the lens barrel  4  becomes completely retracted into the camera main body. Then, when the slide cover  2  is closed to the camera non-operating position as illustrated in FIG. 3, the lens barrel  4 , the battery chamber lid  7 , the display device  16  and the like provided at the camera main body  3 , excluding the cartridge chamber lid  8  and the lock release switch  9  provided at the fixed cover unit  36 , become covered by the slide cover  2 . 
     FIGS. 4A through 4C illustrate a state in which the cartridge chamber lid  8  is open while the slide cover  2  is at the camera non-operating position, with FIG. 4A presenting a front view of the camera, FIG. 4B presenting a left side elevation of FIG.  4 A and FIG. 4C presenting a bottom view of the camera. The cartridge chamber lid  8  can be opened or closed around a shaft  81  as illustrated in the cut-away portion in FIG.  4 A and when the lock on the cartridge chamber lid  8  is released by operating the lock release switch  9 , the cartridge chamber lid  8  can be opened, as illustrated in FIGS. 4A through 4C. Then, when a film cartridge  22  is inserted in the cartridge chamber  23  and the cartridge chamber lid  8  is closed, a lower fork  82  provided at the cartridge chamber lid  8  becomes fitted into the indented portion of a film take-up shaft  22   a . When the cartridge chamber lid  8  is completely closed, the cartridge chamber lid  8  itself becomes locked, and thus, the loading of the film cartridge  22  is completed. As described above, in the camera in this embodiment, the film cartridge  22  can be loaded or replaced even while the slide cover  2  is closed. 
     In addition, when replacing the battery, the battery chamber lid  7  is opened to replace the battery  24  after the slide cover  2  is completely opened to the camera operating position, as illustrated in FIGS. 5A through 5C. The battery chamber lid  7  can be opened or closed around a shaft  71 , as illustrated in the cut-away portion in FIG. 5B, and the battery  24  is housed in a battery chamber  26 , as illustrated in FIG.  5 C. It is to be noted that while FIGS. 5A through 5C illustrate a state in which the battery chamber lid  7  is open, the battery chamber lid  7  and the cartridge chamber lid  8  may be set in an open state at the same time. In the embodiment having the cartridge chamber lid  8  and the battery chamber lid  7  both provided at the bottom side of the camera, even when replacing both the battery  24  and the film cartridge  22  by opening the battery chamber lid  7  and the cartridge chamber lid  8  at the same time, there is no risk of dropping the battery  24  or the film cartridge  22  inadvertently, since the camera  1  will be held with the lids  7  and  8  facing upward under normal circumstances. 
     As has been explained, in the camera according to the first embodiment, since the cartridge chamber lid provided at the camera main body is exposed at all times regardless of the position of the slide cover, a film cartridge can be loaded or removed without having to move the slide cover even while the camera is in a non-operating state. 
     Since the battery chamber lid and the cartridge chamber lid are provided at the same side of the camera main body, neither the battery nor the film cartridge will be dropped inadvertently even when replacing the battery and the film cartridge at the same time by opening the two lids. 
     Second Embodiment 
     Next, the structure of the slide cover in the camera according to the present invention is explained in reference to FIGS. 6 through 16 as the second embodiment. FIG. 6 is an exploded perspective of the camera according to the present invention. At the front side of a camera main body  10 , a lens window  11 A at which the taking lens is exposed, a rangefinder window  11 B and the viewfinder objective window—AF auxiliary light window  11 C are provided, with a shutter release button  12  provided at its upper side and a display device  13  and various buttons  14  provided at its rear surface, as illustrated in FIG.  9 . At one end of the camera main body  10 , a cover member  50  and a grip member  60  are mounted. 
     A slide cover  20  comprising a cylindrical or sheath-shaped outer cover  21  constituted of metal and an inner cover  22  formed through plastic molding is capable of making a sliding movement in the lateral direction of the camera (direction A-B) relative to the camera main body  10  between the closed position illustrated in FIG.  7  and the open position illustrated in FIG. 8. A light-emitting window  21   a  of a flash device is formed at a front plate portion  21 A of the outer cover  21 , whereas a slide guide member  30  is mounted at the internal surface of a rear plate portion  21 B. As illustrated in FIGS. 9,  10  and  12 , the guide member  30  is provided with a pair of projected portions, i.e., an upper projected portion  31  and a lower projected portion  31 , having a length that corresponds to the stroke distance of the slide cover  20 , and a mounting portion  32  which is formed together with the projected portions  31  to constitute an integrated unit is secured to the internal surface of the rear plate portion  21 B through welding. The mounting portion  31  is welded at two locations at the two ends of the guide member  30  (the welding spots are indicated by reference number  204  in FIG.  9 ), and by reducing the number of locations at which it is welded in this manner, the guide member  30  is prevented from becoming deformed while assuring a straight and level run. If the run is not straight and level, the guide member interlocks with the projected portions  31  and the operation is compromised when it moves. However, smooth movement is achieved in the embodiment in which a straight and level run is assured. 
     In addition, as illustrated in FIGS. 9,  11  and  12 , the guide member  40  that connects or engages with the guide member  30  at the outer cover  21  is mounted at the center of the rear side of the camera main body  10 . The guide member  40  is provided with a pair of indented portions, i.e., an upper indented portion  41  and a lower indented portion  41 , formed by bending the upper and lower portions of a metal plate, and the upper and lower projected portions  31  at the guide member  30  are slidably connected and retained at the indented portions  41 . The length of the guide member  41  in the lateral direction of the camera is set to be sufficiently smaller than the length of the guide member  30 . Consequently, even if the guide member  30  becomes somewhat deformed, the slide cover can still slide smoothly. 
     A flash device SB (see FIG. 12) is mounted at an indented portion  22   b  provided at one end of the inner cover  22 , and the radiating light from the flash device SB travels through the window  21   a  at the outer cover  21  to illuminate a subject. Two grooves, i.e., an upper groove  22   a  and a lower groove  22   a , are formed at each of the surfaces of the inner cover  22  located toward the camera front side and toward the camera rear side, and four guide pins BS and BS 1  that are to be inserted at these grooves  22   a  are screwed at the camera main body  10 . With the end surfaces of the grooves  22   a  in the closing direction (direction A) coming in contact with the heads of the guide pins BS and BS 1 , the movement of the slide cover  20  in the opening direction (direction B) is regulated. In addition, a covering portion  22 A that covers the end surface of the outer cover  21  in the closing direction is formed through integrated molding at the end of the inner cover  22  in the closing direction. Furthermore, the upper surface and the lower surface of the inner cover  22  are made to incline so that they approach the central axis of the camera main body in the vertical direction over the areas extending from their ends in the closing direction to their ends in the opening direction, and the front side and the rear side of the inner cover  22  are made to incline so that they approach the central axis of the camera body in the depthwise direction over the areas extending from their ends in the closing direction to their ends in the opening direction. This makes it possible to form the inner cover  22  through molding. 
     Click mechanisms are provided to secure the slide cover  20  at both the open position and the closed position. Namely, as illustrated in FIG. 15, a click ball  71  is provided at the center of the rear side of the camera main body  10  in the longitudinal direction of the camera, and force is applied by a spring  51  to the click ball  71  toward the rear of the camera through a hole formed at the guide member  40 . In addition, at the guide member  30  provided at the slide cover, rectangular holes  30 A and  30 B are formed at two locations along the left and right direction into which the click ball  71  drops. Also, as illustrated in FIGS. 8 and 16, a click ball  72  is provided at the head of the guide pin BS 1  that restricts the movement of the slide cover  20  in the opening direction, via a spring  81 , at the front side of the camera main body  10 . A plate member  91  is secured to the upper portion of the inner surface of the front plate  21 A of the outer cover  21  constituting the slide cover  20 , and the click ball  72  is made to drop into holes  91   a  and  91   b  provided at two locations at the left and right of the plate member  91 . A plate member  73  having a spring property is provided at the lower portion of the front side of the camera main body  10 , with its one end (the right side in FIG. 8) secured and a projection  73   a  formed at its other end. A plate member  92  having holes  92   a  and  92   b  at two locations at the left and right is secured to the lower portion of the inner surface of the front plate  21 A so that the projection  73   a  of the plate member  73  can connect by fitting into each of the holes  92   a  and  92   b.    
     It is to be noted that in FIG. 8, reference number  101  indicates a power switch, reference number  102  indicates a main condenser for the flash device to emit light and reference number  103  indicates a flexible printed board provided to supply power and a light emission signal to the light-emitting circuit of the flash device. The power switch  101  is in an OFF state when the slide cover  20  is at the closed position, and it becomes turned on when the slide cover  20  is slid to the open position. In addition, in FIG. 9, reference number  201  indicates a viewfinder eyesight adjustment lever, reference number  202  indicates a zoom lever and reference number  203  indicates a slide cover receptacle constituted of an elongated projection. The slide cover receptacle  203  receives the inner surface of the sliding slide cover  20  to prevent the cover  20  from coming into contact with another portion of the camera rear side and becoming damaged. 
     Next, the procedure through which the slide cover  20  is mounted at the camera main body  10  is explained below. First, the inner cover  22  of the slide cover  20  itself is externally fitted at the end of the camera main body  10  in direction B. By causing elastic deformation of the plastic inner cover  22  as necessary, the cover can be caused to ride over the projected portions (e.g., the guide member  40 ) at the camera surface and the heads of the four guide pins BS are inserted at the four grooves  22   a  at the inner cover  22 . The guide member  40  should be exposed through a window portion  22   c  (see FIG. 6) of the inner cover  22 . Then, the outer cover  21  is positioned so that the guide member  30  at the outer cover  21  and the guide member  40  at the camera main body  10  are positionally aligned, and by inserting the upper and lower projected portions  31  at the guide member  30  in the upper and lower indented portions  41  of the guide member  40 , the outer cover  21  is moved to cover the inner cover  22 . While the inner cover  22  is fitted from the opening direction side into the opening at the outer cover  21  located on the side toward the closing direction during this process, since the outer surface of the inner cover  22  is made to incline toward the center of the camera main body over the area extending from the end in the closing direction toward the end in the opening direction (portions C and D in FIG.  9 ), the outer cover  21  can be placed over the inner cover with ease. As illustrated in FIG. 13, after the end surface of the outer cover  21  in the closing direction is inserted at the covering portion  22 A of the inner cover  22 , screws BS 2  (see FIG. 14) are screwed into mounting holes formed at the end surfaces of the outer and inner covers  21  and  22  in the opening direction to secure the two covers. Since the two covers are fitted together relatively tightly at the ends of the inner covers  22  and outer covers  21  in the opening direction in this state, any play that may otherwise occur between the two covers is prevented. 
     In the camera structured as described above, when the slide cover  20  is at the closed position, as illustrated in FIG. 7, its end in the closing direction is in contact with the contact portion of the camera main body  10  to regulate its movement in the closing direction, with the guide member  40  at the camera main body  10  positioned at the end of the guide member  30  at the cover  20  in the opening direction. At this time, the taking lens, the viewfinder objective window  11 C and the rangefinder window  11 B are covered by the front surface portion  21 A of the slide cover  20  and the liquid crystal display device  13  and the various operating buttons  14  are covered by a rear surface portion  21 B of the slide cover  20 . In addition, the click balls  71  and  72  are dropped into the holes  30 A and  91 A respectively, with the projection  73   a  at the plate member  73  connecting with and being retained at the hole  92   a . These three click mechanisms secure the slide cover  20  at the closed position to prevent any play of the slide cover  20  in various directions. Play of the slide cover  20  in the vertical direction relative to the camera is mainly prevented by the two click mechanisms provided at the camera front side, whereas play in the depthwise direction is prevented by the three click mechanisms. 
     When a force is applied to the slide cover  20  in the opening direction, the click balls  71  and  72  and the projection  73   a  at the plate member  73  recede against the spring force, and with the guide member  30  sliding inside the guide member  40 , the movement of the slide cover  20  is guided so that the slide cover  20  moves in the opening direction. As illustrated in FIGS. 8 and 9, when the slide cover  20  reaches the open position, the ends of the four grooves  22   a  at the inner cover  22  come in contact with the four guide pins BS and BS 1  at the camera main body  10  to prevent further movement of the slide cover  20  in the opening direction. At this point, the click balls  71  and  72  drop into the holes  30 B and  91   b  respectively and the projection  73   a  at the plate member  73  becomes connected with and retained at the hole  92   b . As a result, the slide cover  20  is secured at the open position, and play in the slide cover  20  in various directions is prevented in a manner similar to that described above. 
     When the slide cover  20  is at the open position, the taking lens, the viewfinder objective window  11 C, the rangefinder window  11 B, the liquid crystal display device  13  and the various operating buttons  14  are exposed to the outside and the camera is set in a photographing enabled state. While the guide member  40  is positioned at the end of the guide member  30  in the closing direction, as illustrated in FIG. 9, the guide member  40  remains covered by the slide cover  20  and therefore, is not exposed to the outside. In addition, since the guide member  30  which has a length that corresponds to the stroke distance (moving distance) of the slide cover  20  is provided at the inner surface of the slide cover  20 , it never becomes exposed to the outside regardless of the position of the cover  20 . Consequently, the presence of the guide members  30  and  40  does not compromise the visual aspect of the camera in any way whatsoever. Furthermore, since the length of the guide member  40  at the main body can be set sufficiently small, its presence does not impose any restriction whatsoever in regard to the arrangement of the display device and the switches at the rear side. 
     Since the guide mechanism constituted of the guide members  30  and  40  is provided at the center of the camera in the vertical direction, a single guide mechanism set achieves the desired effect. This is made possible by providing the guide mechanism at the rear side of the camera. If the guide mechanism is provided at the camera front side, on the other hand, the guide mechanism cannot be positioned at the center because of the taking lens provided at the center of the front side, thereby necessitating a guide mechanism to be provided at two locations above and below the taking lens. Play will occur if a guide mechanism is provided only above or below the taking lens. A structure that does not require a guide mechanism to be provided above and below the taking lens, and is provided with a guide mechanism only at one location at the center, achieves the advantage of reduced thickness in the upper and lower portions of the camera. In the camera in the embodiment, too, the slide cover  20  is at its thickest at the central portion where the guide mechanism is provided and becomes thinner toward its upper and lower ends, as illustrated in FIG.  12 . Generally, a camera looks thin as long as its upper and lower portions are thin even though its center is considerably thicker, and thus, an improvement in the visual appearance is achieved. 
     When a force along the depthwise direction of the camera is applied to the slide cover  20 , the projected portions  31  of the guide member  30  at the cover come in contact with the wall surfaces of the indented portions  41  of the guide member  40  at the main body to regulate the movement of the slide cover  20  along the direction in which the slide cover would lift off from the front side or the rear side of the camera main body so that play in the cover  20  in the depthwise direction is prevented. In addition, as illustrated in FIG. 12, the projected portions  91   c  and  92   c  at the plate members  91  and  92  (provided with grooves for clicking) of the slide cover come in contact with the upper and lower ends of the plate member  75  constituting the camera main body  10 , and the slide cover  20  is further prevented from becoming lifted off frontward through these contacts. 
     Furthermore, as illustrated in FIG. 13, the end surface of the metal outer cover  21  in the closing direction is covered and hidden by the covering portion  22 A of the inner cover  22  to maintain good visual appearance. In particular, by adopting the structure in which the outer cover end is fitted at the indented portion formed at the covering portion  22 A instead of a structure in which a plastic member is merely placed in contact with the outer cover end surface, the covering portion  22 A never comes off to expose the cover end even if a force is applied in the direction indicated by the arrow. Moreover, since the covering portion  22 A is formed at the inner cover  22 , which restricts the movement of the slide cover  20  in the opening direction, a reduction in the number of required parts and an improvement in the assembly work efficiency are achieved. 
     It is to be noted that while the guide member  30  at the cover has a length that corresponds to the stroke distance of the slide cover and the guide member  40  at the main body is formed shorter than the guide member  30 , their dimensions may be set the reverse of this. In addition, indented portions may be formed at the cover guide member  30  and projected portions may be formed at the main body guide member  40  to connect and retain them together. Furthermore, while the outer cover  21  is constituted of metal, it may be constituted of a material other than metal (e.g., plastic). 
     As has been explained, in the camera according to the second embodiment, with a guide mechanism (constituted of the main body guide member and the cover guide member) for the slide cover provided at the approximate center of the camera rear side in the vertical direction, the thickness of the camera in the upper and lower portions can be reduced so that the camera appears smaller to achieve an improvement in the visual appearance. 
     By setting the length of the cover guide member, which is provided at the inner surface of the cover, in correspondence to the stroke distance of the slide cover, it is possible to minimize the length of the main body guide member so that the main body guide member is prevented from becoming exposed to the outside regardless of the open/closed state of the cover to further improve the visual appearance. 
     By providing contact portions that regulate the movement of the slide cover in the direction in which the slide cover would lift off from the front side or the rear side of the camera main body, at the main body guide member and the cover guide member, play in the slide cover along the depthwise direction of the camera is prevented. 
     Since the slide cover is constituted of a metal outer cover and a plastic inner cover, a covering portion is provided at the inner cover to cover and hide the end surface of the outer cover in the closing direction, it is not necessary to provide a special covering member, to achieve a reduction in the number of required parts and an improvement in the assembly work efficiency. In particular, by adopting a structure in which the outer cover end is fitted at an indented portion formed at the covering portion instead of a structure in which a plastic member is simply placed in contact with the outer cover end surface it is ensured that the covering portion does not come off to expose the cover end even if a force is applied in the direction indicated by the arrow (see FIG.  13 ). 
     With the guide mechanism that guides the movement of the slide cover provided at an approximate center of the camera in the vertical direction and the regulating mechanism that regulates the movement of the slide cover in the opening direction provided above and below the guide mechanism, the slide cover at the open position will not become tilted or loose, which would otherwise occur if the regulating mechanism is provided only at the center of the camera in the vertical direction. 
     Since a click mechanism that secures the slide cover at the closed position and at the open position is provided at two locations above and below the taking lens at the front side of the camera main body and also at a location at the center of the camera rear side, the slide cover does not make any undesirable movement from the closed position or the open position and, in addition, play in the slide cover in various directions is prevented by the three click mechanisms. By providing at least one of the click mechanisms at the regulating mechanism that regulates the movement of the slide cover, efficient use of space is achieved, since it is not necessary to secure a special area for providing the click mechanism. 
     By constituting the slide cover with a roughly cylindrical metal outer cover and a plastic inner cover, providing a slide cover guide member at the outer cover  21  and providing a restricting mechanism that restricts the movement of the slide cover in the opening direction at the inner cover, the inner cover can be mounted at the camera main body while undergoing elastic deformation and then the outer cover can be placed over the inner cover to achieve an improvement in the assembly work efficiency. 
     Since the inner cover is mounted at the camera main body from one end while undergoing elastic deformation so that the opening restriction portion provided at the inner cover can connect with the restricting portion at the camera main body and then the outer cover is mounted at the outer surface of the inner cover by connecting the slide guide member provided at the outer cover at the guide member at the camera main body to secure the outer cover to the inner cover, an improvement in the assembly work efficiency is achieved as explained earlier. 
     Since the slide cover is constituted of a roughly cylindrical metal outer cover and a plastic inner cover and the outer surface of the inner cover is made to incline to descend closer to the center of the camera main body toward its end in the opening direction, the plastic inner cover can be inserted through the inside of the outer cover from the end of the outer cover in the closing direction even in a structure in which the two covers are fitted together relatively tightly at their ends in the opening direction to ensure that play is prevented. 
     It is to be noted that the slide cover explained above in the second embodiment can be applied to the camera according to the first embodiment.