JP5272817B2 - CAMERA BODY, IMAGE PICKUP UNIT AND IMAGE PICKUP DEVICE - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera body that can easily combine various imaging units by making the correspondence between the camera body and the imaging unit less strict, and can easily perform mounting/removing operation while avoiding erroneous operation by the imaging unit to the camera body. <P>SOLUTION: The camera body 1 has a recess 1A on/from which the imaging unit 2 including an optical system and an imaging device installed in a casing 2A of rectangular parallelepiped shape is mounted/removed. The recess 1A is formed of three wall sections of a back-wall section 1B that the back of the casing 2A opposes, a sidewall section 1C that the left side of the casing 2A opposes, and an upper-wall section 1D that an upper surface of the casing 2A opposes, when the imaging unit 2 is attached to the camera body 1 and is seen from the front. A lock release operation member 26d, which releases lock of a lock mechanism for locking the imaging unit 2, is provided at an intersection portion between the sidewall section 1C and the upper-wall section 1D. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an improvement of an imaging apparatus including a camera body to which an imaging unit is attached and detached, an imaging unit to be attached to and detached from the camera body, and a combination of an imaging unit and a camera body.

  2. Description of the Related Art Conventionally, an imaging apparatus in which an imaging unit can be attached to and detached from a camera body is known (see, for example, Patent Document 1).

  In this conventional imaging apparatus, the camera body has a storage recess for detachably storing the imaging unit. The storage recess includes a back wall portion, and an upper wall portion, a lower wall portion, and a side wall portion that are integral with the back wall portion. The camera body is provided with a detachable opening formed by a back wall portion, an upper wall portion, and a lower wall portion on the side far from the side wall portion.

  The imaging unit is accommodated in the camera body by facing the imaging unit to the detachable opening and pushing the imaging unit toward the side wall along the back wall. Conversely, the image pickup unit is removed from the camera body by pulling the image pickup unit along the back wall portion in a direction away from the side wall portion.

  However, in this conventional image pickup apparatus, the storage recess is surrounded by the four wall portions of the back wall portion, the upper wall portion, the lower wall portion, and the side wall portion, and the camera body and the image pickup unit have a one-to-one correspondence relationship. Since it is compelled, the design freedom of the imaging unit and shape is small.

  In addition, it is desirable that the attaching / detaching operation can be easily performed while avoiding an erroneous operation of the imaging unit with respect to the camera body.

  The present invention has been made in view of the above-described circumstances. The correspondence between the camera body and the imaging unit is more relaxed, and it is easy to combine various imaging units, and erroneous operation of the imaging unit with respect to the camera body. An object of the present invention is to provide a camera body that can be easily attached and detached while avoiding it, an imaging unit that is attached to and detached from the camera body, and an imaging device that is a combination of the imaging unit and the camera body.

The camera body according to claim 1 is provided with a concave portion in which an imaging unit provided with an optical system and an imaging device is detachably provided in a rectangular parallelepiped housing, and is integrated with the imaging unit to capture a subject. A camera body used as an imaging device for photographing,
The concave portion has a back wall portion facing the back surface of the casing and a left side surface of the casing when the imaging unit is attached to the concave portion and viewed from the subject side in the optical axis direction of the optical system. The three side walls, and the upper wall facing the upper surface of the housing,
A locking member that locks the imaging unit in cooperation with a locked member formed in the imaging unit;
An unlocking operation member for releasing the lock between the camera body and the imaging unit by the locking mechanism is disposed at an intersection between the side wall and the upper wall.

  The camera body according to claim 2 includes a grip portion that is connected to the side wall portion and is gripped by a user, and the grip portion bulges toward a subject in an optical axis direction of the optical system. It has a grip protrusion, The lock release member is located above the grip part, with the side where the upper wall part is present as the upper side.

  The camera body according to claim 3, wherein the grip portion has a grip concave portion adjacent to the grip protrusion, and the grip concave portion is formed from the unlocking operation member with the side on which the upper wall portion exists as an upper side. Is also located on the lower side.

  The camera body according to claim 4, wherein the lock member is moved by moving the image pickup unit in a direction in which the image pickup unit is approached toward the side wall portion, and the lock member and the member to be locked are It is characterized by being engaged.

  The camera body according to claim 5 is unlocked by operating the unlocking operation member to the right side in a state where the imaging unit is mounted in the recess and the imaging unit is viewed from the front. Features.

  The camera body according to claim 6, wherein the lock is released by operating the unlocking operation member to the left side in a state where the imaging unit is disposed in the recess and the imaging unit is viewed from the front. Features.

  The camera body according to claim 7 is characterized in that the unlocking operation member has a lock release button that is rotated so as to follow the external shape of the grip portion.

  The camera body according to claim 8 is characterized in that the lock member is rotated in substantially the same plane as the rotation plane of the lock release button.

  The camera body according to claim 9 is characterized in that the lock member and the unlocking operation member are rotatably supported on the same support shaft.

  The camera body according to claim 10 is characterized in that the unlocking operation member includes an unlocking permission portion that allows the unlocking operation member to turn.

  The camera body according to claim 11, wherein the unlocking permission portion includes a protrusion and a protrusion that allow an operation in an operation direction to release the lock, and an operation of releasing the lock by an operation of the protrusion and protrusion in the burying direction. Movement in the direction is permitted.

The imaging device according to claim 12 includes an imaging unit in which an optical system and an imaging element are provided in a rectangular parallelepiped housing, and a camera body having a recess in which the imaging unit is detachably disposed. An imaging apparatus that captures a subject image by attaching the imaging unit to the camera body,
The concave portion has a back wall portion facing the back surface of the casing and a left side surface of the casing when the imaging unit is attached to the concave portion and viewed from the subject side in the optical axis direction of the optical system. Three wall portions including a side wall portion and an upper wall portion facing the upper surface of the housing,
A locking member that locks the imaging unit in cooperation with a locked member formed in the imaging unit;
An unlocking operation member for releasing the lock between the camera body and the imaging unit by the locking mechanism is disposed at an intersection between the side wall and the upper wall.

The imaging apparatus according to claim 13 , wherein the camera body is provided with a body-side connector portion on the side wall portion, and the left side surface of the housing is electrically connected to the body-side connector portion to perform communication. Unit side connector is provided,
The body side connector part and the unit side connector part are connected by moving the image pickup unit in a direction in which the image pickup unit approaches the side wall part.

The imaging apparatus according to claim 14 is characterized in that a direction in which the imaging unit approaches the side wall portion is perpendicular to an optical axis of the lens system.

The imaging apparatus according to claim 15 , wherein either one of the imaging unit and the camera body includes an engagement groove that extends in a direction in which the imaging unit approaches the side wall, and an engagement biasing member. The other of the imaging unit and the camera body includes an engagement fixing member inserted into the engagement groove,
In a state where the engagement fixing member is inserted into the engagement groove, when the imaging unit is approached toward the side wall portion, the engagement biasing member moves the engagement fixing member of the optical system. It is characterized by urging in the optical axis direction.

The imaging device according to claim 16 , wherein a plurality of the engagement fixing members and the engagement grooves are provided, and at least two of the engagement fixation members are directed toward the side wall portion. It is characterized by being provided with an interval in a direction perpendicular to the direction in which the imaging unit is approached.

The imaging apparatus according to claim 17 , wherein one of the imaging unit and the camera body includes a guide groove extending in a direction in which the imaging unit approaches the side wall, and the imaging unit and the camera body Any one of the above comprises a guide member inserted into the guide groove,
In a state where the guide member is inserted into the guide groove, the guide member and the guide groove slide when the imaging unit is approached toward the side wall portion.

The imaging apparatus according to claim 18, wherein the guide member and the guide groove and is provided with a plurality each of at least two guide members of the guide member, a direction to approach the imaging unit toward the sidewall portion And at least two of the guide grooves are spaced apart in a direction perpendicular to the direction in which the imaging unit approaches the side wall portion. It is characterized by being provided.

The imaging apparatus according to claim 19 , wherein a pair of engaging claws that are opposed to each other with a space in the vertical direction are provided on a back surface of the housing, and that are opposed to each other with a space in the vertical direction and extend in the left-right direction. A pair of sliding contact ribs are formed,
The back wall is provided with a rectangular sheet metal member, and a pair of insertion grooves into which the pair of sliding contact ribs and the pair of engaging claws are inserted are spaced apart in the vertical direction and in the horizontal direction. A pair of engagement plate portions that engage with the pair of engagement claws are formed at intervals in the vertical direction on the sheet metal member, and the pair of engagement plate portions includes the pair of engagement plate portions. An urging plate spring for urging the imaging unit toward the back wall portion in cooperation with the engaging claw is provided, and the edge plate of the upper side and the edge wall of the lower side of the sheet metal member are the pair of slides. It is set as a sliding contact portion that makes sliding contact with the contact rib,
The imaging unit is attached to the camera body by moving the imaging unit in a direction in which the imaging unit approaches the side wall portion.

The imaging device according to claim 20 , wherein a fitting convex portion is provided on one of the left side surface and the side wall portion of the housing, and the fitting is provided on the other side of the side wall portion and the left side surface. A fitting recess is provided for fitting with the projection.

The imaging device according to claim 21 , wherein a plurality of the fitting convex portions and the fitting concave portions are provided, and at least two fitting convex portions of the fitting convex portions are directed toward the side wall portion. Provided at intervals in a direction perpendicular to the direction in which the imaging unit is approached, and at least two of the fitting recesses are in a direction in which the imaging unit is approached toward the side wall portion. It is characterized by being provided with an interval in a direction perpendicular to the above.

The image pickup apparatus according to a twenty-second aspect is characterized in that protrusions that engage with the pair of engaging claws are formed on the engaging plate portion adjacent to the urging spring.

The image pickup apparatus according to claim 23 , wherein a sheet metal member is provided on a back surface of the casing, and the pair of engagement claws are formed on the sheet metal member.

The imaging apparatus according to claim 24 , wherein a sheet metal unit including a sheet metal member and a resin plate is provided on a back surface of the housing, the pair of engagement claws are formed on the sheet metal member, and the pair of resin plates are formed on the pair of the resin plates. The sliding contact rib is formed.

The imaging apparatus according to claim 25 , wherein a back side recess is provided on a back surface of the casing, and a sheet metal unit including a sheet metal member and a resin plate is provided in the back side recess, and the pair of metal plates is provided on the pair of sheet metal members. The engagement claws are formed, the pair of sliding ribs are formed on the resin plate, and a contact surface portion that contacts the sheet metal member of the camera body is formed.

The imaging device according to claim 26 , wherein the resin plate has a small hemispherical shape that prevents the resin plate from warping due to a dimensional tolerance on a surface opposite to a surface on which the pair of sliding contact ribs are formed. A protrusion is formed.

The imaging device according to claim 27 is characterized in that an impact absorbing member is disposed in the fitting recess.

The imaging device according to claim 28 , wherein the housing is provided with a connector portion connected to the body-side connector portion on a left side surface thereof, and an electrical base for mounting a mounting component is provided inside the housing. The electrical base includes at least two split bases, a first split base and a second split base, and the first split base and the second split base are each along a direction parallel to the optical axis. And arranged side by side in a direction perpendicular to the optical axis.

The image pickup apparatus according to a twenty- ninth aspect is characterized in that the first divided base and the second divided base are arranged so as to overlap each other so that mounting parts do not interfere with each other.

The imaging apparatus according to a thirtieth aspect is characterized in that a movable lens barrel is disposed between the first divided base and the second divided base.

The image pickup apparatus according to a thirty-first aspect is characterized in that the image pickup element and the electrical equipment base are connected via a flexible print base.

The imaging device according to claim 32 , wherein the housing is provided with a connector base to which the connector portion is attached, and the first split base and the second split base are connected via a flexible print base. The printed board and the connector board are arranged on opposite sides of the movable barrel as a boundary.

The imaging device according to claim 33 , wherein at least an image processing chip is mounted on the first divided base, and circuit components constituting at least a power circuit are mounted on the second split base, and the connector base and the first base The one divided board is electrically connected through a flexible printed board, and the connector board and the second divided board are connected through lead wires.

The imaging device according to claim 34 , wherein the camera body includes an imaging instruction receiving unit that receives an imaging instruction and a receiving unit that receives data, and the imaging unit includes a transmission unit that transmits data, Based on the imaging instruction received by the instruction receiving unit, the imaging unit captures a subject image and converts it into image data, and the transmitting unit transmits the image data to the receiving unit.

The imaging apparatus according to a thirty-fifth aspect is characterized in that the camera body includes a display unit that displays the image data.

The image pickup apparatus according to a thirty- sixth aspect is characterized in that the camera body includes a storage medium for storing the image data.

  According to the camera body of the first aspect, it is possible to provide a camera in which an erroneous operation is unlikely to occur and the imaging unit can be easily detached.

  According to the camera body of the second aspect, it is possible to provide a camera body in which erroneous operation is less likely to occur and the imaging unit can be easily removed.

  According to the camera body of the third aspect, since the unlocking operation member is provided at a position above the grip concave portion and at a position where the finger is difficult to hit when gripping the grip portion, there is further concern about erroneous operation. Can be reduced.

  According to the camera body of the fourth aspect, since the engagement between the lock member and the member to be locked is performed in a plane, the locking is ensured when the imaging unit is mounted on the camera body from the left-right direction. be able to.

  According to the camera body of the fifth aspect, during normal shooting, the right direction that is difficult to operate is the release operation direction. Therefore, in the normal gripping state of the grip portion, imaging is performed due to an erroneous operation during shooting. It is possible to further reduce the concern that the unit will unexpectedly fall out of the camera body.

  According to the camera body of the sixth aspect, since the direction that is easy to operate during normal shooting is the release operation direction, the imaging unit can be detached from the camera body without changing the camera body. The exchange can be speeded up.

  According to the camera body of the seventh aspect, since the unlocking operation member has the unlocking button that is rotated so as to follow the external appearance shape of the grip portion, the shape can be matched to the surroundings in terms of design. It is possible to positively give an appearance accent, and the appearance can be improved.

  According to the camera body of the eighth aspect, since the unlocking operation member and the locking member are moved in the same plane, the amount of force applied to the unlocking operation member can be efficiently transmitted to the locking member, and the amount of power loss is reduced. It is possible to prevent the deterioration of the operation quality due to.

  According to the camera body of the ninth aspect, since the lock member and the unlocking operation member are rotatably held on the same support shaft, the number of axes of the camera body can be reduced, and the number of parts can be reduced. Reduction and space saving can be achieved.

  Furthermore, the engagement between the lock member and the unlocking operation member can be ensured. That is, it is possible to prevent the lock member from idling by operating the lock release button.

  According to the camera body of the tenth and eleventh aspects, since the lock is released by two actions, the risk of erroneous operation of the lock release member can be further reduced. Moreover, since the lock release member has a two-action structure, the risk of erroneous operation of the lock release member can be further reduced.

According to the imaging device of any one of claims 12 to 14 , since the lock / unlock mechanism is provided on the camera body side, the camera body is gripped to unlock the imaging unit with respect to the camera body. It can be easily performed even in a state.

According to the imaging device of the twelfth aspect , when the camera body is viewed from the front, the unlocking member is provided at a position similar to the position of the removal button of the interchangeable barrel unit of the single-lens reflex camera. Therefore, even when used by a person familiar with conventional interchangeable lens barrel type single-lens reflex cameras, the risk of erroneous operation can be reduced, and the imaging unit can be easily removed while reducing the risk of erroneous operation. Can be provided.

According to the imaging device of claims 15, 16, and 22, when the imaging unit is slid from the left-right direction with respect to the camera body and the imaging unit is set in the recess, the imaging unit for the camera body Contributes to the prevention of back and forth rattling.

According to the imaging device of claim 17 and claim 18, when the imaging unit is slid from the left-right direction with respect to the camera body and the imaging unit is set in the recess, Contributes to the prevention of rattling.

According to the image pickup apparatus of the nineteenth aspect , it is possible to reduce backlash in the up / down / left / right / front / rear direction of the image pickup unit relative to the camera body.

According to the imaging device according to claim 20 and claim 21, when the imaging unit is slid from the left-right direction with respect to the camera body and set in the recess, it contributes to preventing backlash in the front-rear direction of the imaging unit with respect to the camera body. To do. In addition, this contributes to facilitating electrical connection between both connector portions.

According to the imaging device of the twenty- third aspect, since the sheet metal member is provided on the back surface of the casing, when the casing is formed of a resin material, it contributes to improvement of the rigidity of the casing.

According to the image pickup apparatus of the twenty-fourth aspect , the noise generated by the friction between the sliding contact rib generated when the image pickup unit is slid with respect to the camera body and the image pickup unit is attached and detached and the edge wall of the sheet metal member is generated. Reduction can be achieved.

According to the imaging device of the twenty-fifth aspect , it is possible to reduce the scratching sound that occurs when the imaging unit is slid with respect to the camera body and the imaging unit is attached and detached.

According to the imaging device of the twenty-sixth aspect , it is possible to reduce the warping of the resin plate that occurs when the imaging unit is slid and attached to the camera body while pressing the imaging unit toward the camera body.

According to the image pickup apparatus of the twenty-seventh aspect , it is possible to mitigate an impact when the image pickup unit is set on the camera body.

According to the image pickup apparatus of claim 28 , since the electrical base has a two-part configuration of the first split base and the second split base, the layout area of the mounted parts can be increased without increasing the housing area. Can be achieved. In addition, the length of the housing in the optical axis direction can be shortened as compared with the case where the electrical base is arranged in the direction orthogonal to the optical axis.

According to the imaging device of the twenty- ninth aspect, even when the first divided board and the second divided board are arranged so as to overlap each other, the second divided board is arranged between the mounted components arranged on the first divided board. Since the divided substrates are stacked so that the mounted components are located, that is, the mounted components do not interfere with each other, the vertical thickness of the housing due to overlapping of the divided substrates is prevented. it can.

According to the imaging device of the thirty- third aspect, since the movable barrel can be disposed at the center of the casing, the design is excellent.

According to the image pickup apparatus of the thirty-first aspect , since the image pickup element is separated from the electrical base, it is possible to easily adjust the optical axis of the lens system and to complicate the structure of the camera shake correction mechanism.

According to the imaging device of the thirty-second aspect , electrical noise can be suppressed.

According to the imaging device of the thirty-third aspect , since the connector base and the mounting base are formed separately, the replacement when the connector portion fails is easy.

According to the imaging apparatus of the thirty-fourth to thirty-sixth aspects, it is possible to image a subject by attaching different imaging units to the same camera body.

FIG. 1A is an explanatory diagram showing a mounting state of a camera body and an imaging unit to which the present invention is applied, and is an external view of the imaging apparatus including the camera body and the imaging unit as viewed from the front side. FIG. 1B is an explanatory diagram showing a mounting state of a camera body to which the present invention is applied and another imaging unit, and is an external view of the imaging device including the camera body and the imaging unit as seen from the front side. is there. FIG. 2 is an external view of the imaging unit shown in FIG. 1 viewed from the back side. FIG. 3 is an explanatory view showing a state before the image pickup unit is attached to the camera body shown in FIG. 1 or a state after the image pickup unit is pulled out. FIG. FIG. 4 is an explanatory view showing a state before the image pickup unit is attached to the camera body shown in FIG. 1 or a state after the image pickup unit is pulled out. FIG. FIG. 5 is an external view showing a camera body to which the present invention is applied, and is a view of the camera body as seen from the front side. FIG. 6 is an external view of an imaging unit to which the present invention is applied, and is a view of the imaging unit as seen from the back side. FIG. 7 is a front view of a camera body to which the present invention is applied. FIG. 8 is a perspective view showing the external shape of the sheet metal member shown in FIG. 7 and is a view seen from the front side of the camera body 1. 9 is a perspective view showing the external shape of the sheet metal member shown in FIG. 7, and is a view of the sheet metal member shown in FIG. 8 as viewed from the back side. FIG. 10 is a cross-sectional view of the sheet metal member shown in FIGS. FIG. 11 is a partially enlarged sectional view of the sheet metal member shown in FIG. FIG. 12 is a partial enlarged cross-sectional view for explaining the engagement relationship between the engagement plate portion and the imaging unit shown in FIGS. 8 and 9. FIG. 13 is a perspective view for explaining the meshing relationship between the imaging unit shown in FIG. 1 and the lock / unlock member. FIG. 14 is a partially enlarged view showing the meshing relationship between the lock / unlock member shown in FIG. 13 and the locked member. FIG. 15 is a plan view of the lock member shown in FIG. 16 is a perspective view of the lock member shown in FIG. FIG. 17 is a plan view of the unlocking member shown in FIG. 18 is a perspective view of the unlocking member shown in FIG. FIG. 19 is an external view showing another example of the imaging apparatus according to the present invention. 20 is an external view of the camera body shown in FIG. FIG. 21 is an external view of the imaging unit shown in FIG. FIG. 22 is a perspective view for explaining the meshing relationship between the locking member and the engaged member shown in FIG. FIG. 23 is a partially enlarged view showing the meshing relationship between the locking member and the engaged member shown in FIG. 24 is a plan view of the lock member shown in FIG. FIG. 25 is a perspective view of the lock member shown in FIG. FIG. 26 is a plan view of the unlocking member shown in FIG. 27 is a perspective view of the unlocking member shown in FIG. FIG. 28 is an explanatory view showing a modified example of the imaging unit comprising the camera body and the imaging unit shown in FIG. 1, and an engagement claw of the sheet metal member on the imaging unit side and an engagement plate portion of the sheet metal member on the camera body side. It is the external view which fractured | ruptured the part corresponded to and was seen from the back side. FIG. 29 is an explanatory view showing a modified example of the image pickup unit including the camera body and the image pickup unit shown in FIG. 1, and is an external view as seen from the back side with the sliding rib portion of the resin plate on the image pickup unit side broken. FIG. 30 is a partial enlarged cross-sectional view for explaining a modification of the imaging unit shown in FIGS. 1 and 19 and corresponding to a broken portion of the imaging unit shown in FIG. FIG. 31 is a perspective view of the sheet metal member shown in FIG. 30 as viewed from the front side of the imaging unit. 32 is a perspective view of the sheet metal member shown in FIG. 31 as viewed from the back side of the imaging unit. FIG. 33 is a perspective view of the resin plate shown in FIG. 30 as viewed from the back side of the imaging unit. FIG. 34 is a perspective view of the resin plate shown in FIG. 30 as viewed from the front side of the imaging unit. 35 is a perspective view of a sheet metal member unit in which the sheet metal member shown in FIG. 32 and the resin plate shown in FIG. 33 are integrated. FIG. 36 is a circuit diagram showing an example of electrical components built in the imaging apparatus shown in FIGS. FIG. 37 is a circuit diagram showing another example of electrical components built in the imaging apparatus shown in FIGS. FIG. 38 is a schematic diagram showing a first example of an electrical equipment base disposed in the housing of the imaging unit shown in FIGS. 1 and 19. FIG. 39 is a schematic diagram showing a second example of an electrical equipment base disposed in the housing of the imaging unit shown in FIGS. 1 and 19. FIG. 40 is a schematic diagram showing a state in which the electrical base shown in FIG. 39 is viewed from the front. FIG. 41 is a schematic diagram showing another example of the arrangement relation of the electrical equipment base shown in FIG. FIG. 42 is an external view showing a state in which the camera body is viewed from the back side and before the electronic viewfinder is attached to the camera body. FIG. 43 is an external view showing a state in which the camera body is viewed from the back side and the electronic viewfinder is attached to the camera body. FIG. 44 is an external view showing a state in which the camera body is viewed from the front side and before the electronic viewfinder is attached to the camera body. FIG. 45 is an external view showing a state in which the camera body is viewed from the front and the electronic viewfinder is mounted on the camera body.

(General description of the camera body 1 and the imaging unit 2)
1A, 1B, and 2 show a state in which an imaging unit having a rectangular parallelepiped housing according to the present invention is mounted on a camera body.

In FIG. 1 (a), FIG. 1 (b), and FIG. 2, 1 is a camera body and 2 is an imaging unit. The imaging unit 2 has a rectangular parallelepiped housing 2A. Here, the imaging unit 2 includes an interchangeable lens barrel unit including an imaging optical system and an imaging element. The housing 2A has a lens barrel 3 on the front surface 2a. As shown in FIGS. 3 and 4, the imaging unit 2 is detachable from the camera body 1. As shown in FIG. 1, the lens barrel 3 includes a guide barrel 3a and a movable barrel 3b. A movable barrel 3b is disposed in the guide tube 3a so as to be able to advance and retract in the direction in which the optical axis O extends. The movable lens barrel 3b is provided with a lens system such as a zoom lens. A subject image is formed on the image sensor by an imaging optical system including this lens system. An imaging unit 2 having a different size may be attached to the camera body 1 in a replaceable manner (see FIG. 1B). The imaging unit 2 shown in FIG. 1B may include imaging elements having different sizes and lens barrels 3 having different sizes. FIG. 1B shows, as an example, a state in which an imaging unit 2 having a different lens barrel 3 size from the imaging unit 2 shown in FIG. It is shown.
(Detailed description of camera body 1)
As shown in FIGS. 3 to 5, the camera body 1 has a recess 1 </ b> A as an arrangement space for the housing 2 </ b> A. The concave portion 1A is configured by three wall portions of a resin-made back wall portion (back wall constituent body) 1B, side wall portion (side wall constituent member) 1C, and upper wall portion (top wall constituent member) 1D. The back wall portion 1B and the side wall portion 1C are orthogonal to each other. The upper wall portion 1D is orthogonal to both wall portions 1B and 1C.

  On the back wall 1B, when the imaging unit 2 is mounted or disposed in the recess 1A and the imaging unit 2 is viewed from the front, that is, from the subject side in the optical axis direction of the optical system, the rear surface 2b ( (See FIG. 6). When the imaging unit 2 is disposed in the recess 1A and the imaging unit 2 is viewed from the front, the left side surface 2c of the housing 2A faces the side wall 1C. When the imaging unit 2 is disposed in the recess 1A and the imaging unit 2 is viewed from the front, the upper surface 2d of the housing 2A faces the upper wall 1D.

  The back wall portion 1B, the side wall portion 1C, and the upper wall portion 1D are integrally formed. The contour of the recess 1A is defined by the back wall 1B, the side wall 1C, and the upper wall 1D. When the housing 2A is disposed, the recess 1A has a lower side (Y direction) where the lower surface 2e of the housing 2A is located, a right side where the right side surface 2f of the housing 2A is located (X direction), The housing 2A is opened in three directions with the front (Z direction) where the front surface 2a is located.

  Operation portions for electrically operating the camera body 1 and the imaging unit 2 are provided at appropriate positions of the back wall portion 1B, the side wall portion 1C, and the upper wall portion 1D. In this embodiment, for example, as shown in FIGS. 1 to 4, a release button 5y and a dial 5z as an operation unit are provided on the upper wall 1D.

  As shown in FIGS. 5 and 7 to 11, the back wall 1 </ b> B is provided with a sheet metal member 4 as a back wall. When the imaging unit 2 is set on the camera body 1, the back surface 2 b faces the sheet metal member 4. The sheet metal member 4 serves to reinforce the back wall portion 1B. The sheet metal member 4 has a substantially rectangular outline corresponding to the back surface shape of the housing 2A. The sheet metal member 4 is formed by pressing, for example. As shown in FIGS. 8 and 9, the sheet metal member 4 has an upper side 4a, a lower side 4b, a left side 4c, and a right side 4d. The upper side 4a and the lower side 4b extend in parallel to each other and in the left-right direction. The left side portion 4c and the right side portion 4d extend in parallel with each other and extend vertically.

  The upper edge wall 4a 'of the upper side part 4a and the lower edge wall 4b' of the lower side part 4b serve as edge walls for guiding the imaging unit 2 in the left-right direction. In the sheet metal member 4, screw holes 4 e are appropriately formed in the upper side portion 4 a and the lower side portion 4 b with a space in the left-right direction. As shown in FIGS. 3 to 5 and 7, the sheet metal member 4 is fixed to the back wall portion 1 </ b> B with screws 4 f.

  A sheet metal member 5 is fixed to the upper wall portion 1D with screws 5f as shown in FIG. The sheet metal member 5 faces the upper surface 2d of the housing 2A when the housing 2A is set in the recess 1A. The sheet metal member 5 seems to stand up from the back wall portion 1B toward the front when the side wall portion 1C is directly viewed from the side so that the upper wall portion 1D is positioned on the upper side.

  As shown in FIGS. 1 and 3, a strobe light emitting unit 5b as an illumination unit is disposed on the right side of the front surface 5a of the upper wall 1D. Here, the strobe light emitting portion 5b has been described as being provided on the upper wall portion 1D, but this strobe light emitting portion 5b may be provided on the side wall portion 1C. By providing the strobe light emitting portion 5b on the upper wall portion 1D, the subject can be illuminated from above the optical axis O of the lens system of the imaging unit 2, and the subject can be appropriately illuminated.

  A sheet metal member 6 is fixed to the side wall 1C with screws 6f as shown in FIGS. The sheet metal member 6 faces the left side surface 2c of the housing 2A when the housing 2A is set in the recess 1A. The sheet metal member 6 stands upward when the sheet metal member 6 is directly viewed so that the back wall portion 1B is located on the lower side and the upper wall portion 1D is located on the right side and the front side is located on the upper side. Looks like it has been.

  As shown in FIGS. 1, 3 to 5, and 7, the camera body 1 includes a grip portion 1 c that is connected to the side wall portion 1 </ b> C. The grip portion 1c is defined as a front direction from the back side to the front side, and a bulge portion (grip convex portion) 1c ′ that bulges forward, that is, toward the subject in the optical axis direction of the optical system. , A finger hook recess (grip recess) 1c ″ existing between the bulge portion 1c ′ and the recess 1A. The finger hook recess 1c ″ is adjacent to the bulge portion 1c ′, and the finger hook recess. For 1c ″, when the grip portion 1c is gripped with the right hand, it is possible to hit from the middle finger to the little finger.

  A storage chamber is formed inside the grip portion 1c. In this storage room, various electric parts required for the battery and the imaging device are built. That is, in this storage room, a battery, a circuit used for controlling the imaging unit 2 by operation of the operation unit, a processing circuit for processing an image captured by the imaging unit 2, an image captured by the imaging unit 2 and by the processing circuit A recording medium for recording and storing the processed image, a power supply circuit, a strobe control circuit, a circuit board on which circuit components constituting these are mounted, and the like are stored.

  On the back surface of the back wall portion 1B, as shown in FIG. 2, a display surface 1b is provided as a display portion for displaying an image based on image data captured by the imaging unit 2. An image recorded on the recording medium is reproduced and displayed on the display surface 1b. The size of the back wall 1B is roughly defined by the size of the display surface 1b, but the display surface 1b may or may not be provided on the back wall 1B.

  In this embodiment, a liquid crystal display as a display surface is provided on the back wall portion 1B. Furthermore, a sheet metal member 4 is provided on the side of the back wall 1B where the liquid crystal display is not disposed. With such an arrangement, the size of the sheet metal member 4 can be further increased. Thereby, the vertical interval between the engagement grooves or the vertical interval between the insertion grooves can be further increased, and the effect of preventing rattling is improved.

  As shown in FIGS. 4 and 6, the imaging unit 2 is provided with a plug as a connector portion (unit-side connector portion) 11 extending in the vertical direction on the left side surface 2 c facing the sheet metal member 6. The connector portion 11 is fixed to a connector board (plug base set) on which an electric circuit is wired. This plug base set is arranged in a floating structure inside the imaging unit. The connector part 11 protrudes outward from the left side surface 2c.

  This floating structure absorbs and relaxes an attachment error between the connector part 11 and the connector part 12 when the imaging unit is mounted on the camera body 1 and electrical connection between the connector part 11 and the connector part 12 is attempted. It fulfills the function of relieving stress applied when the connector part 11 and the connector part 12 are fitted together.

  As shown in FIGS. 3 and 5, the camera body 1 is provided with a connector portion (body-side connector portion) 12 extending in the vertical direction adjacent to the sheet metal member 6. The connector portion 12 has positioning protrusions 12a and 12a at both ends in the vertical direction. The connector part 11 has positioning holes (not shown) at both ends in the vertical direction. For the connector parts 11 and 12, for example, commercially available bay connectors are used.

  The connector portion 12 rises from the back wall portion 1B when the sheet metal member 6 is viewed from the front so that the back wall portion 1B is located on the lower side, the upper wall portion 1D is located on the right side, and the front is located on the upper side. It is arranged so as not to be touched inadvertently by the rising base of the visible side wall 1C. The connector portion 12 has a cover member 12b that covers the connector terminal. The cover member 12b prevents an electric circuit, an electric element, and the like from being electrostatically destroyed by a static electricity discharge that is touched by a human hand when the imaging unit 2 is attached to the camera body 1. Have a role.

  The connector portion 12 is exposed toward the recess 1A. The connector unit 12 is fitted to the connector unit 11 as the imaging unit 2 moves in the direction from right to left when the imaging unit 2 is mounted and set on the camera body 1, and the camera body 1 and the imaging unit are fitted. 2 are electrically connected. The details of setting the imaging unit 2 to the camera body 1 will be described later.

  A pair of insertion grooves 13a and 13b extending in the left-right direction are formed in the back wall 1B as shown in FIG. The pair of insertion grooves 13a and 13b are provided at an interval in the vertical direction. The pair of insertion grooves 13a and 13b are disposed along the upper edge wall 4a 'and the lower edge wall 4b'. The insertion grooves 13a and 13b serve as guide grooves for guiding the imaging unit 2 in the left-right direction while restricting the positional relationship of the connector part 12 of the camera body 1 with respect to the connector part 11 of the imaging unit 2. Note that the upper edge wall 4 a ′ and the lower edge wall 4 b ′ serve as sliding contact portions to which sliding contact ribs (described later) formed on the back surface of the imaging unit 2 are slidably contacted.

  As shown in FIGS. 8 and 9, engaging plate portions 8a and 8b are formed on the side close to the right side portion 4d on the upper side portion 4a and the lower side portion 4b of the sheet metal member 4, respectively. The engaging plate portion 8a protrudes upward from the upper edge wall 4a '. The engaging plate portion 8b protrudes downward from the lower edge wall 4b '. The pair of engaging plate portions 8a and 8b are arranged with a space in the vertical direction. The engagement plate portions 8a and 8b are engaged with engagement claws (described later) formed on the back surface of the imaging unit 2, and serve to prevent backlash in the front-rear direction.

  The engaging plate portions 8a and 8b have an inclined wall 8c on the side close to the right side portion 4d and a stopper wall 8d on the side close to the left side portion 4c. An engagement wall 8e is formed between the inclined wall 8c and the stopper wall 8d. As shown in FIGS. 10 and 11, a projection 8f is formed on the engaging wall 8e by a half-punching means. The protrusion 8f is provided on the front side of the engagement plate portions 8a and 8b and protrudes toward the insertion grooves 13a and 13b. An energizing leaf spring 8g as an engaging energizing member is provided adjacent to the protrusion 8f as shown in FIGS. The biasing plate spring 8g is provided on the front side of the engagement plate portions 8a and 8b, and faces the insertion groove 13a as the upper concave groove and the insertion groove 13b as the lower concave groove. The right sides of the insertion grooves 13a and 13b are open toward the outside. The arrangement position of the urging plate spring 8g is closer to the right side part 4d than the arrangement position of the protrusion 8f. The biasing plate spring 8g plays a role of biasing the imaging unit 2 toward the back wall portion 1B. The protrusion 8 f plays a role of reducing back-and-forth movement of the imaging unit 2 when the imaging unit 2 is attached to and detached from the camera body 1. The insertion grooves 13a and 13b also serve as engagement grooves that engage with a pair of engagement claws (described later).

  The engagement plate portions 8a and 8b are mounted in the direction toward the imaging unit 2 in the forward direction (the arrow F1 in FIG. 12) when the imaging unit 2 is mounted on the camera body 1 and the imaging unit 2 is locked to the camera body 1. When a force in the direction is applied, the function of preventing pulling out by this force is performed in cooperation with a pair of engagement claws (described later) provided as an engagement fixing member provided in the imaging unit 2.

  That is, the engagement biasing member moves the engagement fixing member in the optical axis direction of the optical system when the imaging unit 2 is approached toward the side wall portion 1C in a state where the engagement fixing member is inserted into the engagement groove. Play an energizing role. In the above description, the engagement fixing member is described as a pair, that is, two, but may be one or three or more, and in the case of two or more, the engagement fixing member is the side wall portion 1C. It is desirable to configure with an interval in a direction perpendicular to the direction in which the imaging unit is approached. The engaging groove has a positional relationship corresponding to the engaging member. Further, here, the configuration has been described in which the engagement urging member and the engagement groove are provided in the camera body 1 and the engagement fixing member is provided in the imaging unit 2, but the opposite configuration may be used. The same applies to the configuration of the guide member and the guide groove.

  As shown in FIGS. 3, 5, and 7, a pair of auxiliary fitting protrusions (fitting protrusions) 14 and 14 are formed on the side wall portion 1 </ b> C with a space in the vertical direction. The auxiliary fitting protrusion 14 is located above the connector portion 12 when the side wall portion 1C is directly viewed so that the back wall portion 1B is positioned on the lower side and the upper wall portion 1D is positioned on the right side and the front side is on the upper side. Is located. The pair of auxiliary fitting protrusions 14, 14 cooperate with the pair of auxiliary fitting holes when an inadvertent twisting force is applied to the imaging unit 2, so that the connector terminal of the connector portion 12 of the camera body 1, the imaging unit 2 has a function of preventing the connector terminal of the second connector portion 11 from being destroyed.

The connector portion 12 is provided on the side surface of the side wall portion 1C where a vertically long grip portion extending long in the vertical direction is formed. By arranging in this way, a larger connector can be arranged. Therefore, the data transfer speed between the imaging unit and the camera body can be increased.
(Description of appearance shape of imaging unit 2)
As shown in FIGS. 4 and 6, a pair of auxiliary fitting holes (fitting recesses) 22 are formed in the imaging unit 2 on the left side surface 2 c facing the sheet metal member 6. The pair of auxiliary fitting protrusions 14 and 14 are fitted into the pair of auxiliary fitting holes 22 when the imaging unit 2 is mounted on the camera body 1. At the bottom of the pair of auxiliary fitting holes 22, an impact absorbing member 22a such as sponge or rubber is disposed. A configuration may be employed in which the pair of auxiliary fitting holes 22 is formed in the side wall portion 1C and the pair of auxiliary fitting protrusions 14 and 14 are formed in the left side surface 2c of the housing 2A. In addition, here, a pair of fitting protrusions and fitting recesses are described, that is, two, but the number of fitting protrusions and fitting recesses may be one or three or more. In the case of providing, it is desirable that the imaging unit 2 be arranged with a gap in a direction perpendicular to the direction in which the imaging unit 2 approaches the side wall 1C.

  As shown in FIG. 6, a rectangular sheet metal member 2B is provided on the back surface 2b of the housing 2A. The sheet metal member 2B has a screw hole 2h 'at an appropriate position, and is fixed to the back surface 2b of the housing 2 by a set screw 2h. The sheet metal member 2B is formed with a pair of sliding contact ribs 23a and 23b as guide members and a pair of engagement claws 23c and 23d as engagement fixing members. The pair of sliding contact ribs 23a and 23b are opposed to each other with a space in the vertical direction and extend in the horizontal direction.

  The pair of engaging claws 23c and 23d are formed by cutting and raising. The pair of engaging claws 23c and 23d has a cut and raised portion 23e and a bent portion 23f. Similarly, the pair of engaging claws 23c and 23d are arranged to face each other with an interval in the vertical direction. In the sheet metal member 2B, rectangular long holes 23g and 23h are formed at locations where the pair of sliding contact ribs 23a and 23b are formed and locations where the pair of engaging claws 23c and 23d are formed, respectively. The pair of sliding contact ribs 23a and 23b are inserted into the insertion grooves 13a and 13b so as to be capable of sliding contact with the upper edge wall 4a 'and the lower edge wall 4b', respectively. The pair of engaging claws 23c and 23d can be engaged with the urging plate spring 8g.

As shown in FIG. 6, a sheet metal member 2C is fixed to the upper surface 2d of the housing 2A by a set screw 2j. The sheet metal member 2C has an extension plate portion (extension portion) 2m that extends outward from the left side surface 2c of the housing 2A. The extension plate portion 2 m extends along the upper surface of the connector portion 11. The extension plate 2m is formed with a notch 2n and a locked claw 2p. A lock claw as a lock member which will be described later enters the notch 2n. The to-be-locked claw 2p enters a notch portion of a lock member described later. The locked claw 2p has an inclined wall 2p ′. The imaging unit 2 is fixed to the camera body 1 by the engagement between the lock member and the locked member.
(Description of the lock mechanism 24 and the lock release mechanism 24 ')
The camera body 1 is provided with a lock mechanism 24 shown in FIGS. The lock mechanism 24 is located at the intersection of the side wall 1C and the upper wall 1D. The lock mechanism 24 has a function of locking the imaging unit 2. As shown in FIG. 5, the lock mechanism 24 is positioned near the upper left corner of the housing 2A when the housing 2A is viewed from the front with the housing 2A disposed in the recess 1A. .

  The lock mechanism 24 is schematically configured by a lock member (lock plate) 25 (see FIGS. 15 and 16), a support shaft 27, and a stopper 27a. The stopper 27a is fixed to the camera body 1. The lock member 25 plays a role of locking the imaging unit 2 in cooperation with the locked claw 2p as a locked member. The lock release mechanism 24 ′ is generally configured by an unlock operation member (lock release plate) 26 (see FIGS. 17 and 18), a support shaft 27, and a stopper 27 b. The stopper 27 b is fixed to the camera body 1. The unlocking operation member 26 plays a role of unlocking the imaging body 2 with respect to the camera body 1 by the locking member 25.

  When the camera body 1 is viewed from the front, since the unlocking operation member is provided at a position similar to the position of the removal button of the interchangeable lens barrel unit of the conventional single-lens reflex camera, the conventional interchangeable lens Even when a person accustomed to a lens barrel type single-lens reflex camera is used, it is easy to remove the image pickup unit 2, and erroneous operation is unlikely to occur. Therefore, it is possible to provide the camera body 1 in which the imaging unit can be easily removed while reducing the risk due to erroneous operation.

  As shown in FIGS. 15 and 16, the lock member 25 includes a shaft hole 25a, a notch 25b, and a lock claw 25c. A support shaft 27 (see FIGS. 13 and 14) is inserted through the shaft hole 25a. The toe 25c ″ of the lock claw 25c is directed forward with the direction from the back side to the front side of the camera body 1 defined as the front. Note that the toe 2p ″ of the to-be-locked claw 2p is the imaging unit. 2 faces in the direction facing the back wall 1B in a state of being disposed in the recess 1A. That is, the toe 2p ″ of the to-be-locked claw 2p is directed to the rear, with the direction from the front side to the back side of the camera body 1 defined as the rear.

  The locking member 25 is urged to rotate forward (in the direction of arrow F2 in FIG. 14) about the support shaft 27 by an urging means (not shown). The stopper 27a plays a role of regulating the rotation stop position of the lock member 25 by the biasing means. When the lock claw 25c and the locked claw 2p are not engaged, the lock claw 25c is held in contact with the stopper by the urging force of the urging means.

  The unlocking operation member 26 is separated from the stopper 27a. An inclined wall 25c 'is formed in the lock claw 25c. The inclined wall 25c ′ is engaged with the inclined wall 2p ′ when moving the imaging unit 2 from the right to the left with respect to the camera body 1 and mounting the imaging unit 2 on the camera body 1, A component force is generated to rotate the lock member 25 backward with the support shaft 27 as a fulcrum.

  As shown in FIGS. 17 and 18, the unlocking operation member 26 includes a shaft hole 26a, a release protrusion 26b, a locking protrusion 26c, and an unlock button 26d. A support shaft 27 that rotatably supports the lock member 25 is inserted into the shaft hole 26a. The support shaft 27 is inserted into the shaft hole 25 a and the shaft hole 26 a and is fixed to the camera body 1. The release protrusion 26b contacts the side surface 25f of the lock member 25 and plays a role of rotating the lock member 25 in the release direction (the direction opposite to F2). One end portion 28a of the unlocking spring 28 is locked to the locking protrusion 26c. The other end 28b of the unlocking spring 28 is locked to a locking projection (not shown) provided at an appropriate location inside the side wall 1C. The unlocking spring 28 functions to urge the unlocking operation member 26 to rotate forward about the support shaft 27.

  The stopper 27 b plays a role of regulating the rotation stop position of the lock release operation member 26 by the rotation biasing force of the lock release spring 28. The unlocking operation member 26 is in contact with the stopper 27b when not being operated. When the unlocking operation member 26 is operated, the unlocking operation member 26 is separated from the stopper 27b and rotated in a direction approaching the stopper 27a. The amount of rotation of the unlocking operation member 26 in the operation direction is restricted by the stopper 27a.

  The lock release button 26d is positioned above the finger hook recess 1c "when the side on which the upper wall portion 1D exists is turned up. That is, the finger hook recess 1c" is below the unlock operation member 26. Is located. The lock release button 26d has a finger pad portion 26e that protrudes outward from the grip portion 1c.

  The upper part of the grip convex part is usually a position that does not interfere with gripping the grip part during photographing, and is a position that is difficult to operate carelessly. Can provide a camera body that is easy to remove.

  Furthermore, since the unlocking operation member is provided at a position above the grip concave portion and at a position where the finger is hard to hit when gripping the grip convex portion, the fear of erroneous operation can be further reduced.

In this embodiment, the lock release button 26d is rotated so as to follow the external shape of the grip portion 1c. The lock member 25 and the unlocking operation member 26 are overlapped with each other and rotated around the support shaft 27, and the lock member 25 is rotated in substantially the same plane as the rotation plane with the lock release button 26. The
(Procedure for mounting the imaging unit 2 to the camera body 1)
Next, a procedure for setting the imaging unit 2 in the camera body 1 will be described.

  The camera body 1 is placed in a horizontal state with the back wall 1B of the camera body 1 facing down. For example, the camera body 1 is placed on the left hand to be in a horizontal state. The imaging unit 2 is brought closer to the camera body 1 from the direction of arrow F3 (from the top to the bottom) shown in FIG. 3, and the pair of sliding contact ribs 23a and 23b are inserted into the pair of insertion grooves 13a and 13b, respectively.

  Next, the imaging unit 2 is moved in the direction of arrow F4 (right to left) shown in FIG. That is, the imaging unit 2 is moved toward the side wall 1C. That is, the imaging unit 2 is brought closer to the side wall portion 1C from a direction orthogonal to the optical axis of the lens system. At that time, in the imaging unit 2, the sliding contact ribs 23a and 23b are inserted into the pair of insertion grooves 13a and 13b, respectively, while the pair of sliding contact ribs 23a and 23b are inserted into the upper edge wall 4a ′ and the lower edge wall 4b. Moved while touching '. During the movement, the pair of engaging claws 23c and 23d approach the engaging plate portions 8a and 8b. When the pair of engaging claws 23c and 23d hit the engaging plate portions 8a and 8b, they are guided by the inclined wall 8c and face the engaging wall 8e.

  During the mounting of the image pickup unit 2 to the camera body 1, the vertical movement of the image pickup unit 2 with respect to the camera body 1 is reduced by the action of the sliding contact ribs 23a and 23b. When the imaging unit 2 is moved from the right to the left with respect to the camera body 1, the engaging claws 23c and 23d are brought into contact with the biasing leaf spring 8g. The imaging unit 2 is attracted to the back wall portion 1B by the action of the biasing plate spring 8g. Thereby, the back-and-forth movement of the imaging unit 2 is alleviated. Further, during the moving operation, the engaging claws 23c and 23d are restricted by the amount of movement in the front-rear direction (the direction of arrow F1 shown in FIG. 12 and the opposite direction thereof) by the protrusion 8f shown in FIG. The back-and-forth chatter of the unit 2 is further alleviated.

  The auxiliary fitting protrusions 14 are fitted into the auxiliary fitting holes 22 almost simultaneously with the contact between the pair of biasing plate springs 8g and the pair of engaging claws 23c and 23d. The sliding contact ribs 23a and 23b move while being in sliding contact with the upper edge wall 4a ′ and the lower edge wall 4b ′, so that the auxiliary fitting protrusion 14 is kept in a position where the auxiliary fitting protrusion 14 can be engaged with the auxiliary fitting hole 22. The left side surface 2c of the body 2A can approach and leave the side wall 1C. Further, the sliding contact ribs 23a and 23b move while being in sliding contact with the upper edge wall 4a 'and the lower edge wall 4b', so that the connector portion 11 and the connector portion 12 are kept in a position where the connector portion 12 can be fitted. The left side surface 2c of 2A can be moved toward and away from the side wall 1C. The sliding ribs 23a and 23b function as guide means when the camera body 1 and the imaging unit 2 are mounted.

  The position restriction of the connector part 11 with respect to the connector part 12 is outlined by the auxiliary fitting protrusion 14 and the auxiliary fitting hole 22. Next, the connector portions 11 and 12 are fitted to each other, and the camera body 1 and the imaging unit 2 are connected so as to be electrically communicable. When the auxiliary fitting protrusion 14 and the auxiliary fitting hole 22 are fitted, the shock absorbing member 22a is provided at the bottom of the auxiliary fitting hole 22, so that the camera body 1 and the imaging unit 2 are Impact caused by collision is reduced. Further, the back-and-forth movement of the imaging unit 2 with respect to the camera body 1 is further alleviated by the auxiliary fitting protrusion 14 and the auxiliary fitting hole 22.

  On the other hand, the component force generated on the inclined wall 25c ′ when the inclined wall 2p ′ of the locked claw 2p abuts on the inclined wall 25c ′ of the locking claw 25c is the rotational biasing force of the lock member 25 by the biasing member (not shown). When larger than that, the lock member 25 is rotated in the direction opposite to the direction in which the rotation urging force acts (direction of arrow F2 in FIG. 14) with the support shaft 27 as a fulcrum.

  Next, when the to-be-locked claw 2p gets over the lock claw 25c, the lock member 25 is returned to its original position by the rotational biasing force. As a result, the lock claw 25c enters the cutout portion 2n, and the locked claw 2p enters the cutout portion 25b. As a result, the locking claw 25c and the locked claw 2p are engaged with each other, and the imaging unit 2 is locked to the camera body 1 in the left-right direction. The locking claw 25c as the locking member and the locked claw 2p as the locked member restrict the back and forth rattling between the camera body 1 and the imaging unit.

In this embodiment, when the imaging unit 2 is locked to the camera body 1, the pair of engaging claws 23c and 23d are securely engaged with the engaging plate portions 8a and 8b. Since the pair of engaging plate portions 8a and 8b are formed at positions that are greatly separated in the left-right direction with respect to the pair of auxiliary fitting protrusions 14 and 14 formed on the side wall portion 1C, the imaging unit 2 is attached to the camera body 1. On the other hand, even if it is going to be pulled out forward, the force accompanying the pulling out is dispersed and the pulling out is reliably prevented.
Moreover, it is possible to prevent the connector portions 11 and 12 from being subjected to an excessive force accompanying the pulling out.

  In addition, even if the right side of the imaging unit 2 is held by hand and forcibly pulled out toward the lower right, the pair of auxiliary fitting protrusions 14, 14 and the pair of engaging claws 23c, 23d, and the lock mechanism 24 and the connector portion 11 and 12 are prevented from being forced to be pulled out.

By one operation of moving the imaging unit toward the side wall 1C, the mechanical fixing of the camera body 1 and the imaging unit 2 by the lock mechanism 24 and the electrical connection by the connector units 11 and 12 are completed almost simultaneously. Therefore, the mounting operation of the imaging unit 2 to the camera body 1 can be easily performed in a short time.
(Procedure for removing the imaging unit 2 from the camera body 1)
Next, a procedure for removing the imaging unit 2 from the camera body 1 will be described.

  When the image pickup unit 2 is disposed in the recess 1A, the lock release button 26d is operated rightward (direction F5 in FIG. 1) when the image pickup unit 2 is viewed from the front. As a result, the unlocking operation member 26 is rotated in the opposite direction (the opposite direction to F2 in FIG. 14) with respect to the rotation biasing force of the unlocking spring 28 with the support shaft 27 as a fulcrum. Then, the release protrusion 26 b comes into contact with the side surface 25 f of the lock member 25. By rotating the release protrusion 26b in the opposite direction (the direction opposite to F2 in FIG. 14) with respect to the rotation biasing force of the unlocking spring 28, the lock member 25 has a notch portion with the support shaft 27 as a fulcrum. It is rotated in the direction of retracting from 2n (backward). Thereby, the meshing between the lock claw 25c and the locked claw 2p is released. That is, the lock of the imaging unit 2 with respect to the camera body 1 is released. In this state, the imaging unit 2 is moved from the left to the right with respect to the camera body 1 (in the direction of arrow F4 'in FIGS. 1 and 3). Then, the fitting between the connector portions 11 and 12 is released, and the fitting between the auxiliary fitting protrusion 14 and the auxiliary fitting hole 22 is also released.

  The imaging unit 2 is moved from the left to the right (in the direction of arrow F4 'in FIGS. 1 and 3) until the sliding ribs 23a and 23b come into contact with the stopper wall 8d. Thereafter, the imaging unit 2 is moved in a direction away from the back wall 1B (the direction opposite to F3 in FIG. 3). Thereby, the removal of the imaging unit 2 from the camera body 1 is completed. The unlocking operation member 26 returns to the original position by the urging force of the unlocking spring 28 when the finger is released from the unlocking button 26d. Further, the lock member 25 is also returned to the original position by a rotating biasing force (not shown).

As described above, in this embodiment, a state where the photographer holds the grip portion 1c with the right hand and the upper wall portion 1D is located on the upper side and uses the lens system toward the front subject is referred to as a normal use state. In this normal use, the rightward direction that is difficult for the user to operate is the release operation direction, so that the imaging unit 2 is in the normal gripping state of the grip portion 1c due to an erroneous operation during use. The fear of dropping from the camera body 1 can be reduced.
(Modification of lock mechanism 24, lock release mechanism 24 ')
In the lock mechanism 24 shown in FIGS. 5 and 13 to 18, the toe 25c ″ of the lock claw 25c is configured to face forward in the opposite direction with respect to the back wall portion 1B as shown in FIG. The toe 2p ″ of the to-be-locked claw 2p has a configuration opposite to the direction of the toe 25c ″ of the lock claw 25c. On the other hand, in the imaging apparatus shown in FIG. The toe 25c ″ is configured to face the back wall portion 1B as shown in FIG. 20, and the toe 2p ″ of the locked claw 2p of the imaging unit 2 is the toe 25c ″ shown in FIG. 20, as shown in FIG. The direction is the opposite of the direction. The configuration of the imaging unit 2 shown in FIG. 21 is the same as that of the imaging unit 2 shown in FIG. 6 except that the direction of the toe 2p ″ is different. Therefore, the same components are denoted by the same reference numerals and description thereof is omitted. To do.

  The configuration of the camera body 1 shown in FIG. 20 is the same as that of the camera body 1 shown in FIG. 6 except that the configurations of the lock mechanism 24 and the lock release mechanism 24 ′ are different. Detailed description thereof will be omitted, and the configuration of the lock mechanism 24 and the lock release mechanism 24 'will be described with reference to FIGS.

  The lock member 25 shown in FIGS. 22 to 25 is obtained by adding some modifications to the lock member 25 shown in FIGS. 13 to 16. The main structure of the lock member 25 shown in FIGS. It is the same as the lock member 25 shown in FIGS. The unlocking operation member 26 shown in FIGS. 22, 23, 26, and 27 is obtained by slightly modifying the unlocking operation member 26 shown in FIGS. 13, 14, 17, and 18. The main configuration of the unlocking operation member 26 shown in FIGS. 22, 23, 26, and 27 is the same as that of the unlocking operation member 26 shown in FIGS. 13, 14, 17, and 18. Accordingly, the same reference numerals are given to these main components, and detailed description thereof will be omitted, and different parts will be described.

The lock member 25 shown in FIGS. 22 to 25 is formed with a notch 25e into which the release protrusion 26b of the lock release operation member 26 shown in FIGS. 22, 23, 26, and 27 enters.
The notch 25e is provided with a contact wall 25f ′ of the release protrusion 26b. The lock member 25 is urged to rotate by a rotation urging means (not shown) with the support shaft 27 as a fulcrum and the toe 25c ″ toward the back wall portion 1B. It plays a role of restricting the rotation stop position of the lock member 25 by the biasing means.When the lock claw 25c and the locked claw 2p are not engaged, the lock claw 25c is stopped by the biasing means by the biasing means. The unlocking operation member 26 is separated from the stopper 27a when not being operated.

  The unlocking operation member 26 has an arm portion 26f. A locking projection 26c is formed on the free end of the arm 26f. One end 28a of the lock release spring 28 is locked to the locking protrusion 26c. The other end 28b of the unlocking spring 28 is locked to a locking projection (not shown) provided at an appropriate location inside the side wall 1C. The unlocking operation member 26 is rotationally biased by the unlocking spring 28 in a direction in which the release button 26d approaches the back wall portion 1B (in the direction of arrow F6 in FIG. 23) with the support shaft 27 as a fulcrum. The unlocking operation member 26 is brought into contact with the stopper 27b when not being operated, and the stopper 27b plays a role of regulating the rotation stop position of the unlocking operation member 26 by the unlocking spring 28. When the unlocking operation member 26 is operated, the unlocking operation member 26 is separated from the stopper 27b and rotated in a direction approaching the stopper 27a. The amount of rotation of the unlocking operation member 26 in the operation direction is restricted by the stopper 27a.

  According to this configuration, when the imaging unit 2 is set on the camera body 1, the inclined wall 2p ′ of the locked claw 2p abuts on the inclined wall 25c ′ of the lock claw 25c and the component force generated on the inclined wall 25c ′ is generated. When it becomes larger than the rotation biasing force of the lock member, the lock member 25 is rotated in the direction opposite to the direction in which the rotation biasing force acts (the direction opposite to the arrow F6) with the support shaft 27 as a fulcrum.

  Next, when the to-be-locked claw 2p gets over the lock claw 25c, the lock member 25 is returned to its original position by the rotational biasing force. Thereby, the lock claw 25c enters the notch 2n. Further, the to-be-locked claw 2p enters the notch 25b. As a result, the locking claw 25c and the locked claw 2p are engaged with each other, and the imaging unit 2 is locked to the camera body 1 in the left-right direction. Further, when unlocking the image pickup unit 2 with respect to the camera body 1, the lock release button 26d is operated in the direction opposite to the biasing direction of the unlocking spring 28 (the direction of the arrow F7 (leftward in FIG. 19)). .

  As described above, in this modification, the leftward direction, which is easy for the photographer to use, is the release operation direction during normal use, so that the camera body 1 can be imaged without changing the camera body 1 in the normal gripping state of the grip 1c. The unit 2 can be removed from the camera body 1 and the replacement of the imaging unit 2 can be speeded up.

  By one operation of moving the imaging unit 2 in the direction away from the side wall 1C (from left to right), the separation of the lock member and the locked member and the release of the electrical connection by the connector portions 11 and 12 are almost complete. Since it is completed at the same time, the detaching operation of the imaging unit 2 from the camera body 1 can be easily performed in a short time.

The lock release button 26d may be provided with an in / out protrusion as a lock release permission portion that permits an operation in the operation direction to release the lock. When the operation in the operation direction for releasing the lock is permitted by the operation in the direction of burying the protrusion and protrusion, the lock is released by the two-action, so that the risk of erroneous operation of the lock release button 26d can be reduced. More can be achieved. That is, since the operation of the unlocking operation member 26 has a two-action structure, the risk of erroneous operation of the unlocking button 26d can be further reduced.
(Modification of imaging unit 2)
The sheet metal member 4 shown in FIGS. 3, 4, 5, and 7 is provided on the back wall portion 1B of the camera body 1, and the sheet metal member 2B shown in FIGS. When the members 4 and 2B are faced to each other and the imaging unit 2 is slid in the left and right direction with respect to the camera body 1 to be attached and detached, a rubbing sound is generated due to the rubbing of both the sheet metal members 4 and 2B. Further, a rubbing sound is generated due to rubbing between the sliding contact ribs 23a and 23b and the upper edge wall 4a ′ and the lower edge wall 4a ′.

  Therefore, in this modification, the following devices are devised on the back side of the housing 2A shown in FIGS. The detailed configuration will be described below with reference to FIGS.

  28 and 29 are perspective views showing the rear surface 2b of the housing 2A of the imaging unit 2 in a cutaway manner. On the back side of the housing 2A, as shown in a partially enlarged view in FIG. 30, there are a rectangular first recess 2s and a rectangular second recess 2t smaller than the first recess 2s. Is provided. The second recess 2t is formed in the first recess 2s. In the first recess 2s, a sheet metal member 2B shown in FIGS. 31 and 32 is arranged. The sheet metal member 2B shown in FIGS. 31 and 32 has the same structure as the sheet metal member 2B shown in FIG. 6 except for the sliding contact ribs 23a and 23b. Therefore, the sheet metal member 2B shown in FIGS. The same components are denoted by the same reference numerals, and detailed description thereof is omitted.

A rectangular resin thin plate 30 shown in FIGS. 33 and 34 is disposed in the second recess 2t. The sheet metal member unit 31 shown in FIG. 35 is configured by fixing the resin thin plate 30 and the sheet metal member 2B shown in FIGS. 33 and 34 to the back surface 2b of the housing 2A with a set screw. A pair of rectangular thick portions 30a are formed on the side surface of the resin plate 30 at intervals in the vertical direction. The pair of thick portions 30a are arranged corresponding to the long holes 23g.
Further, the resin plate 30 is formed on one side thereof with a pair of thick portions 30b spaced vertically from the pair of rectangular thick portions 30a in the left-right direction. The pair of thick portions 30b are arranged corresponding to the long holes 23h. These thick portions 30a and 30b are shaped to be inserted into the long holes 23g and 23h.

  The thick portion 30a is formed with a protrusion 30c extending in the left-right direction and a contact surface portion 30d extending in the left-right direction. The protruding portion 30c serves as the sliding contact ribs 23a and 23b. The thick portion 30b is formed with a cutout portion 30e and a contact surface portion 30f in order to prevent interference with the cut and raised portion 23e. The resin plate 30 is formed with an insertion hole 30h corresponding to the screw hole 2h '. On the other side surface of the resin plate 30, hemispherical small protrusions 30i are formed at appropriate locations as shown in FIG. This hemispherical small protrusion 30i abuts against the wall 2t ′ constituting the second recess 2t as shown in FIG. 30, and the resin plate 30 warps due to the dimensional tolerance in the thickness direction of the sheet metal member unit 31. Play a role in preventing.

  Thus, in this modification, since the sliding contact ribs 23a and 23b are formed by the resin protrusions 30c, the image pickup unit 2 is slid in the left-right direction with respect to the camera body 1 and attached and detached. In this case, it is possible to reduce scratching noise caused by rubbing between the sliding contact ribs 23a and 23b and the upper edge wall 4a ′ and the lower edge wall 4b ′. Further, since the resin contact surface portions 30d and 30f slide relative to the sheet metal member 2B, it is possible to reduce the scratching sound caused by the friction between the sheet metal member 4 and the sheet metal member unit 31.

  In addition, when the resin plate 30 of the sheet metal member unit 31 is used to reduce the scratching sound when the imaging unit 2 is slid in the left-right direction with respect to the camera body 1 to be attached and detached, the imaging unit 2 is connected to the camera. When pressed against the body 1 toward the back wall constituting body 1, if there is no hemispherical small protrusion 30 i, the resin plate 30 is elastically deformed due to dimensional tolerance, and the resin plate 30 is warped, so-called “pak” "Sound" is generated.

  On the other hand, in this modified example, a plurality of hemispherical small protrusions 30i are formed at appropriate positions, and the thickness of the resin plate 30 is substantially thicker than the depth of the second recess 2t due to dimensional tolerance. Thus, the contact surface portions 30d and 30f of the resin plate 30 are surely pressed against the sheet metal member 4 or the back wall portion 1B, so that warping and elastic deformation due to dimensional tolerance are prevented.

In this embodiment and modification, the imaging unit 2 is moved closer to the camera body 1 from the direction of the arrow F3 and then moved from the right to the left direction so as to achieve electrical connection between the imaging unit 2 and the camera body 1. However, a configuration in which electrical connection between the imaging unit 2 and the camera body 1 may be achieved only by movement from the right to the left.
(Circuit configuration of electrical components mounted on the camera body 1 and the imaging unit 2)
Next, electrical components mounted on the camera body 1 and the imaging unit 2 will be described with reference to FIG.

  For example, as shown in FIG. 36, the camera body 1 includes a lithium ion battery 204, a strobe light emitting unit 207 (5a), an electronic viewfinder device 209, and a liquid crystal display device (LCD) having a display surface 1b as a display unit. 210, high-definition television connector interface (HDMIIF) 212, audio video (AVOUT) output terminal 213, USB interface (USBIF) 214, SD card interface (SDcard) 215, audio codec circuit (AUdio codec) 216, speaker 217, microphone 218 , A flash ROM (Flash ROM) 219 as a recording medium for storing image data, a DDR-SDRAM 220, a main CPU 208 that also functions as a receiving unit for receiving image data, and an imaging instruction Operating switches 206 and 211, a sub CPU (Sub CPU) 205 as an imaging instruction receiving unit that receives an imaging instruction from the operating switch 206, a DC / DC power supply circuit 203, a switching element 202, and a connector terminal 201 as a connector unit 12. Is provided.

  These constitute a part of an electrical component having a known function required for a digital camera as an imaging apparatus. The operation switch 206 is a release shutter switch 5y, for example, and the operation switch 211 is an operation key for operating a liquid crystal display (LCD) 210, for example. The liquid crystal display device (LCD) 210 is provided on the back wall portion 1B, for example. The operation switch 211 is provided at an appropriate location on the back wall portion 1B.

  An imaging lens unit 107 as an optical system, an imaging element 108, an AFE circuit 109, a hall element 104, a drive coil 105, a gyro sensor 106, and a drive are provided in a housing 2A of the imaging unit 2. A driver (Motor Driver) 111, a drive motor (M) 110, an acceleration detection sensor 112, a tele-wide detection switch 113, and a connector terminal 116 as a connector unit 11 for transmitting image data are provided.

  These also constitute part of a mounting component having a known function required for a digital camera as an imaging device. The imaging lens unit 107 has a plurality of lenses, and a part of the plurality of lens systems is provided in the movable lens barrel 3b. In this embodiment, the drive motor (M) 110 and the drive driver 111 are described as being provided in the imaging unit 2, but these may be provided in the camera body 1.

  Here, power is supplied to the imaging unit 2 from the camera body 1. For example, the hall element 104, the drive coil 105, and the gyro sensor 106 constitute a part of a camera shake correction mechanism. Signals of the camera shake correction mechanism are input to the main CPU 208 via the connector terminals 116 and 201, and the main CPU 208 executes camera shake correction processing based on these signals. The camera shake correction process is a process for correcting the shake of the image projected on the light receiving surface of the image sensor caused by the camera shake. For example, a process of driving the image sensor in a direction opposite to the direction of the shake detected by the gyro sensor 106 may be performed, or the direction of the image pickup lens unit 107 may be set in the same direction as the direction of the shake detected by the gyro sensor 106. A process for driving some optical elements may be used. The video signal of the image sensor 108 is input to the main CPU 208 via the AFE circuit 109, subjected to predetermined image processing, and displayed on the LCD 210 or the like.

  The tele-wide detection switch 113 is input to the main CPU 208 via the connector terminals 116 and 201. The main CPU 208 controls the drive driver 111 and the drive motor 110 based on switch signals from the tele-wide detection switch 113, the operation switch 211, and the like. The imaging lens unit 107 is driven and controlled. The detection output of the acceleration detection sensor 112 is input to the main CPU 208 via the connector terminals 116 and 201, and the main CPU 208 controls the inclination of the image displayed on the LCD 210 based on the detection output of the acceleration sensor 112. The LCD 210 displays the degree of inclination of the imaging unit 2 with respect to the horizontal based on the detection output of the acceleration sensor 112. The degree of inclination of the imaging unit 2 with respect to the horizontal may be a numerical display or a video display.

  When the operation switch 206 is operated, the imaging unit 2 images the subject and converts it into image data based on the imaging instruction. The connector terminal 116 transmits this image data to the main CPU 208.

  As shown in FIG. 37, the imaging unit 2 is provided with a DC / DC power supply circuit 101, a sub CPU 102, a main CPU 103, a flash ROM 114, and a DDR SDRAM 115, and after image processing is performed by the main CPU 103, via the connector terminals 116 and 201. It is also possible to adopt a configuration in which the image processing signal is transmitted to the main CPU 208. A configuration in which the main CPU 103 performs compression processing to a format such as JPEG and transmits the compressed image data to the main CPU 208 via the connector terminals 116 and 201 may be employed. As described above, when the imaging unit 2 performs image processing or compression processing, a stable image with less noise can be transmitted to the main CPU 208 of the camera body 1. These electrical components are disposed on an electrical base that will be described later.

  Thus, according to the embodiment and the modification of the present invention, as shown in FIGS. 1A and 1B, the image pickup units 2 having different sizes are attached to and detached from the same camera body 1. Is possible. When the camera body 1 and the imaging unit 2 are configured so that the lower surface of the housing 2A of the imaging unit 2 and the lower surface of the camera body 1 are flush with each other when the imaging unit 2 is attached to the camera body 1, The camera body 1 to which the image pickup unit 2 is attached can be easily handled. Further, whenever an imaging unit 2 of a different size is mounted on the camera body 1, the camera body 1 and the imaging unit are arranged so that the lower surface of the housing 2A of the imaging unit 2 and the lower surface of the camera body 1 are flush with each other. 2, the camera body 1 to which any of the imaging units 2 is attached can be easily handled.

  The concave portion 1A of the camera body 1 is opened in three directions (right, down, and front), and the restriction on the size of the imaging unit 2 with respect to the camera body 1 is relaxed. An element or a small image sensor can be arranged in the image pickup unit 2, and the image pickup units 2 having different sizes in the left, right, up, down, front and rear directions can be attached to and detached from the common camera body 1. Further, for example, since the degree of freedom of the size of the lens barrel 3 of the imaging unit 2 is improved as compared with the conventional one, the imaging unit can be used as a variety of interchangeable lens group units from a single focus lens to a high magnification zoom lens. Can be provided. Accordingly, the customer can purchase only the image pickup unit 2 in accordance with the progress of the image pickup element 108 and upgrade the image pickup unit 2.

  The concave portion 1A of the camera body 1 can be mounted with the imaging units 2 having different sizes in the left-right and up-down directions by opening the right and bottom two directions. Therefore, since the restriction on the size of the image pickup unit 2 with respect to the camera body 1 is relaxed, it can be arranged in a large high-sensitivity image pickup device or a small image pickup unit 2 in accordance with customer needs. 3 and image pickup units 2 having different image pickup elements and different sizes can be attached to and detached from a common camera body 1. Further, for example, since the degree of freedom of the size of the lens barrel 3 of the imaging unit 2 is improved as compared with the conventional case, the imaging unit 2 can be used as a variety of interchangeable lens group units from a single focus lens to a high-power zoom lens. Can provide. Accordingly, the customer can purchase only the image pickup unit 2 in accordance with the progress of the image pickup element 108 and upgrade the image pickup unit 2.

Further, since the 68-pin bay connector is used for the connector portions 11 and 12 that perform communication between the camera body 1 and the imaging unit 2, it is possible to transfer large-capacity image data in a short time. In addition, in order to perform communication between the camera body 1 and the imaging unit 2, other methods such as a wireless communication method and an optical communication method may be used.
(Arrangement configuration of connector base and electrical base)
(First example)
FIG. 38 is a schematic diagram showing a first example for explaining the arrangement relationship between the connector base and the electrical base. An electrical base 32 is provided inside the housing 2A. A camera shake correction mechanism is provided on the back surface of the housing 2A. An image sensor 108 is provided in the camera shake correction mechanism. In FIG. 38, the detailed structure of the camera shake correction mechanism is omitted for the sake of simplicity of explanation.

  The electrical base 32 is composed of two split bases, a first split base 33 and a second split base 34. The first divided substrate 33 and the second divided substrate 34 are arranged in parallel to the optical axis O. Here, the first divided base 33 and the second divided base 34 are arranged so as to overlap each other. Each of the divided bases 33 and 34 is provided with mounting components 35a, 35b, and 35c. The mounting component 35a is, for example, an image processing chip, the mounting component 35b is, for example, the flash ROM 114, and the mounting component 35c is a circuit element as a component of the power supply circuit. These mounting components 35 a to 35 c protrude from the divided bases 33 and 34.

  Here, the mounting components 35a and 35b mounted on the first divided substrate 33 and the mounted components 35c mounted on the second divided substrate 34 face each other on the surfaces where these mounted components are mounted. And they are arranged alternately so as not to interfere with each other. Thereby, the thickness by the overlap of the mounting components of the division | segmentation board | substrates 33 and 34 is prevented from increasing. The first divided substrate 33 is electrically connected to the second divided substrate 34 by an inter-plate connector (not shown). On the back surface of the housing 2A, fitting grooves 36 and 37 into which the sides of the divided bases 33 and 34 are fitted are formed. The second divided base 34 is fixed to the housing 2 </ b> A by the fitting groove 37 and an L-shaped attachment member 38. Reference numeral 39 denotes a set screw. The first divided substrate 33 is fixed to the second divided substrate 34 by the fitting groove 36 and the inter-plate connector.

  The second divided substrate 34 and the image sensor 108 are electrically connected via the flexible print substrate 40. Further, the mounting base (not shown) to which the connector part 11 is attached and the second divided base 34 are also electrically connected via a flexible printed base (not shown).

  When the electric board 32 is divided into the first divided board 33 and the second divided board 34, it is possible to increase the mounting area of the mounted components without increasing the area of the housing 2A. Further, since the first divided base 33 and the second divided base 34 are arranged in parallel to the optical axis O, and the movable lens barrel 3b and the image sensor 108 are arranged so as to overlap in the optical axis direction, The length of the housing 2A in the direction of the axis O can be shortened.

  Even when the first divided substrate 33 and the second divided substrate 34 are arranged so as to overlap each other, the mounting component disposed on the second divided substrate 34 is located between the mounted components disposed on the first divided substrate 33. In this way, since the divided bases are overlapped with each other, it is possible to prevent the vertical thickness of the housing 2A from increasing due to the overlapping of the split bases 33 and 34.

  Furthermore, since the image sensor 108 is separated from the electrical board 32, the position adjustment of the image sensor 108 with respect to the optical axis O of the lens system is easier than when the image sensor 108 is directly mounted on the electrical board 32. Can be planned. Further, if the image pickup device 108 is directly mounted on the electric circuit board 32, the structure of the camera shake correction mechanism is complicated. However, according to the first example, the image pickup device 108 can be directly driven, and thus the structure of the camera shake correction mechanism. Can be simplified.

Hereinafter, an arrangement configuration of the electrical base 32 that improves the designability will be described with reference to FIGS. 39 and 40 as a second example.
(Second example)
As shown in FIGS. 39 and 40, in the second example, the first divided base 33 and the second divided base 34 are arranged vertically with the movable barrel 3b interposed therebetween. The first divided base 33 is fixed inside the housing 2 </ b> A by an L-shaped attachment member 42 and a fitting groove 43. The second divided base 34 is fixed inside the housing 2 </ b> A by an L-shaped attachment member 44 and a fitting groove 45.

  Mounted components 35 a and 35 b such as image processing chips are disposed on the first divided base 33. On the second divided substrate 34, a mounting component 35c constituting a power supply circuit is disposed. The first divided board 33 and the connector board 41 are electrically connected by a flexible printed board 46 as shown in FIG. The second divided base 34 and the connector base 41 are electrically connected via lead wires 47. The first divided substrate 33 and the second divided substrate 34 are connected via a flexible print substrate 48. Thus, since the connector base 41 and the divided bases 33 and 34 are configured separately, it is easy to replace the connector part 11 when the connector part 11 fails.

  Since the flexible printed circuit board 48 is disposed along the inner surface of the right side wall of the housing 2 </ b> A far from the connector circuit board 41, the influence of electrical noise generated in the connector portion 11 is affected via the flexible printed circuit board 48. It is possible to reduce the coverage of the 1-divided substrate 33.

In the second example, the case where the connector portion 11 and the connector base 41 are arranged on the left side of the housing 2A has been described. However, as shown in FIG. 41, the connector portion 11 and the connector base 41 are connected to the upper side of the housing 2A. The divided bases 33 and 34 may be arranged vertically with the movable barrel 3b as a boundary. The configuration shown in FIG. 41 has the same effect as the configuration shown in FIGS. In addition, when the structure which arrange | positions the connector part 11 and the connector base | substrate 41 in this way is employ | adopted, it is necessary to make the camera body 1 into the structure corresponding to the housing | casing 2A shown in this FIG.
(Other)
The embodiment of the invention has been described above, but the present invention is not limited to this. For example, as shown in FIGS. 42 to 45, a strobe device is provided on the upper surface 1 f of the upper wall 1 </ b> D of the camera body 1. A hot shoe portion 5d to which the electronic viewfinder 1g can be attached, an electronic viewfinder connection terminal 5e, a pop-up strobe light emitting portion 5b, and a mode dial switch 5h may be provided. Note that the electronic viewfinder connection terminal 5e shown in FIG. 42 includes a female connector. An electronic viewfinder connection terminal 5e ′ as a male connector shown in FIG. 44 is fitted to the electronic viewfinder connection terminal 5e.

  42 to 45, FIG. 42 shows a state in which the camera body 1 is viewed from the back side and before the electronic viewfinder 1g is attached to the camera body 1, and FIG. FIG. 44 shows a state in which the electronic viewfinder 1g is mounted on the camera body 1 as viewed from the back side, and FIG. 44 shows a state in which the camera body 1 is viewed from the front side and the electronic viewfinder 1g is attached to the camera body 1. 45 shows a state before mounting, and FIG. 45 shows a state where the camera body 1 is viewed from the front and the electronic viewfinder 1g is mounted on the camera body 1.

  Although the embodiments have been described above, the imaging apparatus according to the present invention can be formed by appropriately combining the configurations of the embodiments.

  The camera body 1 of the present invention has a recess 1A in which an imaging unit 2 in which an optical system and an imaging element are provided can be attached to and detached from a rectangular parallelepiped housing 2A. When the imaging unit 2 is disposed on the camera body 1 and viewed from the front, the concave portion 1A has a back wall portion 1B facing the back surface of the housing 2A, and is orthogonal to the back wall portion 1B and is formed on the housing 2A. It consists of three wall portions, a side wall portion 1C facing the left side surface and an upper wall portion 1D orthogonal to both wall portions and facing the upper surface of the housing 2A. A locking mechanism 24 having a function of locking the imaging unit 2 and a function of releasing the locking of the imaging unit 2 is disposed at an intersection between the side wall 1C and the upper wall 1D. The lock mechanism 24 includes a lock claw 25c that locks the image pickup unit 2 in cooperation with the locked claw 2p, and a lock release button 26d that acts on the lock claw 25c to release the lock on the image pickup unit 2.

1 ... Camera body 1
2 ... Imaging unit 1A ... Recess 1B ... Back wall 1C ... Side wall 1D ... Upper wall 2A ... Housing 24 ... Lock / unlock mechanism 2p ... Locked claw 25c ... Lock claw 26d ... Lock release button

JP 2007-173909 A

Claims (36)

A camera body used as an image pickup apparatus for photographing a subject integrated with the image pickup unit, in which a concave portion for detachably arranging an image pickup unit provided with an optical system and an image pickup device is provided in a rectangular parallelepiped housing. There,
The concave portion has a back wall portion facing the back surface of the casing and a left side surface of the casing when the imaging unit is attached to the concave portion and viewed from the subject side in the optical axis direction of the optical system. The three side walls, and the upper wall facing the upper surface of the housing,
A locking member that locks the imaging unit in cooperation with a locked member formed in the imaging unit;
A camera body, wherein an unlocking operation member for unlocking the camera body and the imaging unit by the locking mechanism is disposed at an intersection between the side wall portion and the upper wall portion.   A grip portion connected to the side wall portion and gripped by a user is provided, and the grip portion has a grip protrusion that bulges toward the subject in the optical axis direction of the optical system, and the unlocking 2. The camera body according to claim 1, wherein the operation member is positioned above the grip portion with the side on which the upper wall portion is present as an upper side.   The grip portion has a grip recess adjacent to the grip protrusion, and the grip recess is positioned below the unlocking operation member with the side on which the upper wall portion is present as the upper side. The camera body according to claim 2, characterized in that:   The locking member is moved by moving the imaging unit in a direction in which the imaging unit is approached toward the side wall, and the locking member and the locked member are engaged. The camera body according to claim 2.   5. The lock is released by operating the unlocking operation member to the right in a state where the imaging unit is mounted in the recess and the imaging unit is viewed from the front. The camera body according to any one of the above.   5. The lock is released by operating the unlocking operation member to the left in a state where the imaging unit is disposed in the recess and the imaging unit is viewed from the front. The camera body according to any one of the above.   The camera body according to any one of claims 2 to 6, wherein the unlocking operation member includes a lock release button that is rotated so as to follow the external shape of the grip portion.   The camera body according to claim 7, wherein the lock member is rotated in substantially the same plane as the rotation plane of the lock release button.   The camera body according to claim 7, wherein the lock member and the unlocking operation member are rotatably supported on the same support shaft.   10. The unlocking operation member according to any one of claims 1 to 5, and 7 to 9, wherein the unlocking operation member includes an unlocking permission portion that allows the unlocking operation member to turn. The camera body described.   The unlocking permitting portion has a protrusion and a protrusion that allows the movement in the operation direction for releasing the lock, and the operation in the operation direction for releasing the lock is permitted by the operation of the protrusion and the protrusion in the buried direction. The camera body according to claim 10. An imaging unit in which an optical system and an imaging element are provided in a rectangular parallelepiped housing; and a camera body having a recess in which the imaging unit is detachably mounted; and the imaging unit is attached to the camera body. An imaging device for capturing a subject image,
The concave portion has a back wall portion facing the back surface of the casing and a left side surface of the casing when the imaging unit is attached to the concave portion and viewed from the subject side in the optical axis direction of the optical system. Three wall portions including a side wall portion and an upper wall portion facing the upper surface of the housing,
A locking member that locks the imaging unit in cooperation with a locked member formed in the imaging unit;
An image pickup apparatus, wherein a lock release operation member for releasing the lock between the camera body and the image pickup unit by the lock mechanism is disposed at an intersection between the side wall portion and the upper wall portion. The camera body is provided with a body side connector portion on the side wall portion, and a left side surface of the housing is provided with a unit side connector portion that is electrically connected to and communicates with the body side connector portion.
In a direction to close the imaging unit toward the sidewall portion, by moving the imaging unit, according to claim 12, characterized in that said body-side connector part and the unit connector is connected Imaging device. The imaging apparatus according to claim 13 , wherein a direction in which the imaging unit approaches the side wall portion is perpendicular to the optical axis of the lens system. Either one of the imaging unit and the camera body includes an engagement groove extending in a direction in which the imaging unit approaches the side wall portion, and an engagement biasing member, and the imaging unit and the camera body Either one of them includes an engagement fixing member inserted into the engagement groove,
In a state where the engagement fixing member is inserted into the engagement groove, when the imaging unit is approached toward the side wall portion, the engagement biasing member moves the engagement fixing member of the optical system. The imaging apparatus according to any one of claims 12 to 14 , wherein the imaging apparatus is urged in an optical axis direction. A plurality of the engaging and fixing members and the engaging grooves are provided, and at least two of the engaging and fixing members are in a direction in which the imaging unit approaches the side wall portion. The imaging apparatus according to claim 15 , wherein the imaging apparatus is provided at intervals in a vertical direction. One of the imaging unit and the camera body includes a guide groove extending in a direction in which the imaging unit approaches the side wall, and the other of the imaging unit and the camera body is provided in the guide groove. A guide member to be inserted;
Claim wherein the guide member is in a state of being inserted into the guide groove, when brought close to the imaging unit toward the side wall portion, and the guide member and the guide groove, characterized in that the slide 12 The imaging device according to any one of claims 16 to 16 . It said guide member and said guide groove is provided with a plurality each of at least two guide members of the guide members, spaced in a direction perpendicular to the direction of approaching the imaging unit toward the sidewall portion Wherein at least two of the guide grooves are provided at intervals in a direction perpendicular to a direction in which the imaging unit approaches the side wall portion. The imaging device according to claim 17 . On the back surface of the housing, a pair of engaging claws facing each other with a space in the vertical direction and a pair of sliding contact ribs facing each other with a space in the vertical direction and extending in the left-right direction are formed,
The back wall is provided with a rectangular sheet metal member, and a pair of insertion grooves into which the pair of sliding contact ribs and the pair of engaging claws are inserted are spaced apart in the vertical direction and in the horizontal direction. A pair of engagement plate portions that engage with the pair of engagement claws are formed at intervals in the vertical direction on the sheet metal member, and the pair of engagement plate portions includes the pair of engagement plate portions. An urging plate spring for urging the imaging unit toward the back wall portion in cooperation with the engaging claw is provided, and the edge plate of the upper side and the edge wall of the lower side of the sheet metal member are the pair of slides. It is set as a sliding contact portion that makes sliding contact with the contact rib,
The imaging unit according to claim 12 or 13 , wherein the imaging unit is attached to the camera body by moving the imaging unit in a direction in which the imaging unit is approached toward the side wall portion. apparatus. A fitting convex portion is provided on either the left side surface or the side wall portion of the housing, and a fitting concave portion that fits the fitting convex portion on either the side wall portion or the left side surface is provided. The imaging device according to claim 12 , wherein the imaging device is provided. A plurality of the fitting convex portions and the fitting concave portions are provided, and at least two fitting convex portions of the fitting convex portions are directed toward the imaging unit toward the side wall portion. Provided at intervals in a vertical direction, and at least two of the fitting recesses are spaced apart in a direction perpendicular to the direction in which the imaging unit approaches the side wall portion. The imaging apparatus according to claim 20 , wherein the imaging apparatus is provided. The imaging device according to claim 19 , wherein the engagement plate portion is formed with protrusions that engage with the pair of engagement claws adjacent to the urging spring. The imaging apparatus according to claim 12 , wherein a sheet metal member is provided on a back surface of the housing, and the pair of engaging claws are formed on the sheet metal member. A sheet metal unit composed of a sheet metal member and a resin plate is provided on the back surface of the housing, the pair of engaging claws are formed on the sheet metal member, and the pair of sliding contact ribs are formed on the resin plate. The imaging apparatus according to claim 19 . A back side recess is provided on the back side of the housing, a sheet metal unit comprising a sheet metal member and a resin plate is provided in the back side recess, and the pair of engaging claws are formed on the sheet metal member, and the resin The imaging device according to claim 19 , wherein the pair of sliding contact ribs are formed on a plate, and a contact surface portion that contacts a sheet metal member of the camera body is formed. The resin plate is provided with a hemispherical small protrusion that prevents the resin plate from warping due to dimensional tolerance on the surface opposite to the surface on which the pair of sliding contact ribs are formed. The imaging device according to claim 25 . 21. The imaging apparatus according to claim 20 , wherein an impact absorbing member is disposed in the fitting recess. The housing is provided with a connector portion connected to the body-side connector portion on the left side surface thereof, and an electrical board on which mounting components are mounted is provided inside the housing, and the electrical board is a first divided board. And the second divided substrate, and each of the first divided substrate and the second divided substrate is disposed along a direction parallel to the optical axis and perpendicular to the optical axis. The image pickup apparatus according to claim 12 , wherein the image pickup apparatus is arranged side by side in various directions. 29. The imaging apparatus according to claim 28 , wherein the first divided base and the second divided base are arranged so as to be vertically stacked such that mounting parts do not interfere with each other. 29. The imaging apparatus according to claim 28 , wherein a movable barrel is disposed between the first divided base and the second divided base. The image pickup apparatus according to claim 29 or 30 , wherein the image pickup device and the electrical base are connected via a flexible print base. The housing is provided with a connector base for attaching the connector portion, the first split base and the second split base are connected via a flexible print base, and the flexible print base and the connector base are movable. 31. The imaging apparatus according to claim 30 , wherein the imaging apparatus is disposed on opposite sides with respect to the lens barrel. At least an image processing chip is mounted on the first divided board, and at least circuit components constituting a power supply circuit are mounted on the second divided board. The connector board and the first divided board are connected via a flexible printed board. The image pickup apparatus according to claim 32 , wherein the connector base and the second divided base are connected via a lead wire. The camera body includes an imaging instruction receiving unit that receives an imaging instruction and a receiving unit that receives data, and the imaging unit includes a transmitting unit that transmits data.
Based on the imaging instruction the imaging instruction accepting unit accepts, claims the imaging unit into image data by capturing a subject image, wherein the transmission unit and transmits the image data to the receiving unit The imaging device according to any one of Items 12 to 33 . 35. The imaging apparatus according to claim 34 , wherein the camera body includes a display unit that displays the image data. The imaging device according to claim 34 , wherein the camera body includes a storage medium that stores the image data.

Images