JP2005283756A - Camera mount cap and head mount cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera mount cap and a head mount cap, with which the removal of an oxide film formed on the surface of a contact is coped with. <P>SOLUTION: A camera main body has a main-body side mount section on which a camera head having a photographic optical system and an imaging element is freely attachably/detachably mounted and which is provided with a contact for electrically connecting to the camera head. Also, the camera main body receives and processes an image signal from the camera head. The camera mount cap is freely attachably/detachably attached to the camera main body side mount section and protects the contact and the inside of the camera main body. The camera mount cap has a projection which slides against the contact when the camera head is attached to or detached from the main body side mount section. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a camera mount cap and a head mount cap that are respectively attached to a main body side mount portion and a head side mount portion in a system in which a camera head is detachably attached to a camera body.

  In recent years, a camera system including a camera head including a photographing optical system and an image sensor, and a camera body on which the camera head is detachably mounted and receives image signals from the mounted camera head and performs signal processing has been studied. ing.

  In such a camera system, when the camera head is mounted on the camera body, the contacts provided on both the camera body and the camera head come into contact, and between the camera body and the camera head, Electric power is supplied and signals are transmitted and received through this contact.

  FIG. 1 is an external perspective view of a camera body and a camera head constituting the above-described camera system.

  FIG. 1 shows a camera main body 100 and a camera head 110, and the camera main body 100 is provided with a main body side mount portion 101 to which the camera head 110 is attached on the front side. The main body side mount portion 101 has a contact 1011 and a main body claw 1012.

  The camera head 110 is provided with a head-side mount 111 that contacts the camera body 100, and the head-side mount 111 has a contact 1111 and a head claw 1112.

  These attachments engage the main body claw 1012 and the head claw 1112 by inserting and rotating the head claw 1112 closer to the inside of the camera body than the main body claw 1012 in accordance with the recess 1013 between the main body claws 1012. Has been done. Thereby, the contact 1011 on the camera body side and the contact 1111 on the camera head side come into contact with each other. A release button 103 is shown on the upper surface of the camera body 100 shown in FIG.

  By the way, in such a camera system, if the camera head is removed from the camera body and both contacts are left exposed, power supply failure and communication failure due to contamination of these contacts or formation of an oxide film, etc. May be caused.

  In view of this, it has been proposed to cover the contacts with a cap so that the contacts are not left uncovered (see, for example, Patent Document 1), and this may be incorporated into the camera.

  FIG. 2 is an external perspective view of the caps of the camera body and the camera head.

  FIG. 2A shows a camera mount cap 105 that is a cap that is attached to the main body side mount portion 101 of the camera main body 100.

  FIG. 2B shows a head mount cap 115 that is a cap attached to the head side mount portion 111 of the camera head 110. The camera mount cap 105 and the head mount cap 115 are provided with a camera cap claw 1052 and a head cap claw 1152 for fixing them to the camera body 100 and the camera head 110, respectively.

By attaching / detaching the camera mount cap 105 and the head mount cap 115 to / from the camera body 100 and the camera head 110, the contacts provided on the camera body 100 and the camera head 110 are connected to the camera mount cap 105 and the head mount cap, respectively. 115 plane portions 1051 and 1152 are contacted.
Japanese Utility Model Publication No. 5-65389

  According to Patent Document 1, it is said that even with this configuration, the contact can be protected from fouling and the oxide film formed on the contact surface can be removed. It is difficult to remove the film sufficiently.

  In view of the above circumstances, an object of the present invention is to provide a camera mount cap and a head mount cap that are devised for removing an oxide film formed on a contact surface.

To achieve the above object, the camera mount cap of the present invention comprises:
A camera head equipped with a photographic optical system and an image sensor is detachably mounted. The camera head includes a body-side mount portion provided with a contact point for electrical connection with the camera head. Image signals are output from the camera head. A camera mount cap that is detachably attached to the body-side mount portion of the camera body that receives and performs signal processing, and protects the contacts and the camera body inside,
A protrusion is provided that slides on the contact when attaching to and detaching from the main body side mount.

  The camera mount cap of the present invention is provided with a protrusion that rubs a contact disposed on the body-side mount when the camera body is attached to or detached from the body-side mount. Thereby, the rubbing range with respect to the contact surface can be made wider than before. Therefore, according to the camera mount cap of the present invention, it is possible to reliably remove the oxide film formed on the contact surface.

The head mount cap of the present invention for achieving the above object is
A head-side mount that includes a photographing optical system and an image sensor, and is detachably attached to a camera body that receives an image signal and performs signal processing, and is provided with a contact point for electrical connection with the camera body. A head mount cap that is attached to the camera body and transmits an image signal to the camera body, and is detachably attached to the head-side mount section to protect the contact and the camera head. There,
A protrusion is provided that slides on the contact when the head-side mount is attached or detached.

  The head mount cap of the present invention is provided with a protrusion that rubs a contact provided on the head side mount when the camera head is attached to or detached from the head side mount. Thereby, the rubbing range with respect to the contact surface can be made wider than before. Therefore, according to the head mount cap of the present invention, it is possible to reliably remove the oxide film formed on the contact surface.

  Here, the camera mount cap may have a structure in which the camera mount cap is attached to and detached from the main body side mount portion while rotating. The head mount cap is attached to the head side mount portion. You may have a structure which attaches and detaches, rotating this head mount cap.

  The camera mount cap preferably includes a first member having the protrusion and a second member that supports the first member, and the head mount cap includes the protrusion. It is also a preferable aspect to have a first member having a second member and a second member that supports the first member.

  For example, in the case where the protrusion is made of metal that is resistant to wear, an increase in the weight of the cap can be suppressed by using plastic for the second member as compared with the case where the whole is made of metal.

  According to the camera mount cap of the present invention and the head mount cap of the present invention, it is possible to more reliably remove the oxide film formed on the contact surface. Thereby, generation | occurrence | production of a power supply failure and a communication failure can be suppressed.

  Hereinafter, embodiments of the present invention will be described.

  FIG. 3 is an external perspective view of a camera system in which the camera mount cap of the present invention and the head mount cap of the present invention are used.

  FIG. 3 shows a camera head 1a comprising a photographic optical system and an image sensor that constitutes the camera system 1, and the camera head 1a is detachably mounted to receive an image signal from the camera head 1a and perform signal processing. A camera body 1b is shown. In this camera system 1, when a camera head 1a in which an image sensor and a photographing optical system are integrated is mounted on a camera body 1b, information on the camera head 1a is transmitted to the camera body 1b, and the camera head 1a The photographing optical system provided in the camera can be used for photographing.

  In the center of the front surface of the housing 14b of the camera body 1b, a body-side mount portion 10b to which a large number of contacts are attached is provided.

  The camera head 1a is also provided with a head-side mount portion 10a (see FIG. 6) to which a contact is attached. The camera head 1a is attached to the camera body 1b and rotated by a predetermined angle along the dashed line in the figure. By doing so, both contact points are connected to each other, and the camera head 1a and the camera body 1b are electrically connected. Each of these multiple contacts is assigned for communication or power supply.

  In the camera main body 1b shown in FIG. 3, an AWB sensor 11b is provided above the main body side mount portion 10b, and a light source type at the time of photographing is detected by the AWB sensor 11b. This light source type is, for example, whether it is sunlight or a fluorescent lamp. This light source type is detected by the AWB sensor 11b, and an appropriate color temperature is set in a digital signal processing unit described later, which is optimal. White balance adjustment. A flash light emission window 12b is provided beside the AWB sensor 11b, and a flash light emission device that emits flash light through the flash light emission window 12b is provided in the camera body 1b. Furthermore, a release button 13b is provided on the upper surface of the housing 14b of the camera body 1b.

  FIG. 4 is an external perspective view of the first embodiment of the camera mount cap of the present invention.

  FIG. 4 shows a camera mount cap 2b of the present embodiment that is attached to a main body side mount portion 10b arranged in the camera main body 1b. The camera mount cap 2b includes a cap main body portion 20b and a protruding portion. 21b and a claw portion 22b.

  The camera mount cap 2b is attached to the camera body 1b by inserting the claw portion 22b of the camera mount cap 2b into the recess 101b of the camera body mount portion 10b of the camera body 1b and then inserting the camera mount cap 2b into the camera body 1b. This is done by rotating 2b. Release of the camera mount cap 2b from the camera body 1b is performed in the reverse procedure.

  FIG. 5 is a view of the camera mount cap as viewed from the upper side of the camera when the claw portion of the camera mount cap is inserted into the concave portion of the main body side mount portion of the camera body and rotated.

  FIG. 5 shows a housing 14b and a body-side mount 10b of the camera body 1b, and a cap body 20b of the camera mount cap 2b. The housing 14b and the body-side mount 10b of the camera body 1b include A state in which the contact 100b is attached is also shown.

  FIG. 5 also shows a protrusion 21b of the camera mount cap 2b.

  The contact 100b is housed together with the spring 1000b in the contact housing hole 103b provided in the housing 14b and the body side mount portion 10b of the camera body 1b, and when a certain upward force in FIG. 5 acts on the contact, The spring 1000b contracts and the contact moves upward. When the upward force is released, the spring 1000b returns to the state shown in FIG.

  After inserting the claw portion 22b of the camera mount cap 2b into the recess 101b of the main body side mount portion 10b of the camera main body 1b, if the camera mount cap 2b is rotated with respect to the camera main body 1b, before being rubbed against the protrusion 21b The contact surface starts to be rubbed by a predetermined pressure already applied by the cap body 20b. Accordingly, FIG. 5 shows a state in which the contact 100b is slightly lifted in the contact receiving hole 103b. Thereafter, the protrusion 21b provided on the camera mount cap 2b collides with the contact 100b of the camera body 1b. As a result, the oxide film formed on the surface of the contact 100b is removed in a wider range than before when the camera mount cap 2b is attached or detached.

  FIG. 6 is an external perspective view of the first embodiment of the head mount cap of the present invention.

  FIG. 6 shows the head mount cap 2a of the present embodiment that is attached to the head side mount portion 10a that is the portion of the camera head 1a that is attached to the camera body 1b. The head side mount portion 10a side is shown in FIG. The camera head 1a viewed from the side is also shown.

  The head mount cap 2a includes a cap body 20a, a protrusion 21a, and a claw 22a.

  The head-side mount portion 10a of the camera head 1a is provided with a claw portion 102a and a contact point 100a. As described above, the claw portion 102a is inserted in accordance with the recess 101b of the camera body 1b shown in FIG. The camera head 1a is attached to the camera body 1b by rotating the camera head 1a. The contact 100a shown in FIG. 6 is also provided in the camera head 1a with the structure shown in FIG.

  Since the attachment / detachment of the head mount cap 2a to / from the camera head 1a is the same as the attachment / detachment of the camera mount cap 2b to / from the camera body 1b, description thereof will be omitted.

  As shown in FIG. 6, after inserting the claw portion 22a of the head mount cap 2a into the concave portion 101a between the claw portion 102a and the claw portion 102a of the head side mount portion 10a of the camera head 1a, When the head mount cap 2a is rotated with respect to 1a, the protrusion 21a provided on the head mount cap 2a collides with the contact 100a of the camera head 1a. As a result, the oxide film formed on the surface of the contact 100a of the camera head 1a is removed in a wider range than before when the head mount cap 2a is attached or detached.

  FIG. 7 is an external perspective view of a second embodiment of the camera mount cap of the present invention. 7 that have the same functions as those shown in FIG. 4 are given the same reference numerals as those shown in FIG.

  FIG. 7 shows the camera mount cap 4b of the present embodiment that is mounted on the main body side mount portion 30b provided in the camera main body 3b. The camera mount cap 4b includes a cap main body 40b and a protruding portion 41b. , And a protrusion 42b provided around the protrusion 41b.

  FIG. 8 is a view when the camera mount cap is attached to the main body side mount portion of the camera main body shown in FIG. 7 when viewed from the left side of the camera main body.

  FIG. 8 shows a state in which the protrusion 41b of the camera mount cap starts to enter the main body side mount 30b provided in the camera main body, and accordingly, the protrusion provided in the camera mount cap 4b. 42b advances to the back side of the main body side mount portion 30b while colliding with the contact point 300b attached to the main body side mount portion 30b. The contact point 300b is formed in a curved shape at the center portion, which is housed in the contact housing space 303b provided in the body side mount portion 30b of the camera body 3b, and is the end shown on the right side of FIG. The part is fixed by a fastener 3031b in the contact storage space 303b. Further, since the contact 300b has a right end fixed by a fastener 3031b in the contact storage space 303b, the contact 300b is applied with a pressure higher than a certain level by colliding with the protrusion 41b that advances from the left in FIG. When received, the end opposite to the fixed end is deformed so as to escape to the left in the contact storage space 303b.

  In this way, the camera mount cap 4b is attached to the camera body 3b by rubbing the contact point 300b provided on the body-side mount part 30b with the protrusion 42b, while the projecting part 41b of the camera mount cap 4b is attached to the camera body 3b. This is done by inserting into the main body side mount portion 30b. Therefore, also by the camera mount cap 4b of this embodiment, the oxide film formed on the surface of the contact 300b is removed in a wider range than before every time the camera mount cap 4b is attached or detached. Note that, with the configuration of the camera body 3b shown in FIG. 7, the head mount cap of the camera head used in the camera body 3b is only shown in a reverse relationship, and thus illustration and description thereof are omitted.

  FIG. 9 is a view showing a third embodiment of the camera mount cap of the present invention.

  The function of the protrusion 21b in the camera mount cap 2b of the first embodiment shown in FIG. 4 is the same as that of the cap main body 50b and the claw 52b in the camera mount cap 5b of the third embodiment shown in FIG. It is carried by a protruding plate 51b formed of a different material.

  The protrusion plate 51b shown in FIG. 9B has a protrusion 511b formed by making a notch in a member formed by punching a metal plate and raising it as shown in FIG. 9C. It is attached to the mount cap 5b. Since the protruding portion 511b is raised by a cut made in the metal plate, the protruding portion 511b functions as a metal spring, so that appropriate sliding friction can be ensured between the protruding portion 511b and the contact point. In this way, wear due to rubbing with the contact is suppressed by making the protrusions made of metal. For this reason, it is possible to improve the rubbing force while suppressing an increase in the weight of the camera mount cap as well as widening the rubbing range of the contact surface.

  FIG. 10 is a diagram showing a second embodiment of the head mount cap of the present invention.

  The difference between the head mount cap 3a of the present embodiment shown in FIG. 10 and the camera mount cap 2a of the first embodiment shown in FIG. 6 is that the head mount cap 3a of the present embodiment is raised by cutting a metal plate. Since only the projection plate 31a having the projection portion 311a formed by this is used, detailed description thereof is omitted.

  As described above, since the lens mount cap of the present invention and the camera mount cap of the present invention are provided with the protrusions, the sliding range of the contact surface can be made wider than before. Therefore, according to the present invention, it is possible to reliably remove the oxide film formed on the contact surface.

It is an external appearance perspective view of the camera main body and camera head which comprise the above-mentioned camera system. It is an external appearance perspective view of a camera main body and each cap of a camera head. It is an external perspective view of a camera system in which the camera mount cap of the present invention and the head mount cap of the present invention are used. It is an external appearance perspective view of 1st Embodiment of the camera mount cap of this invention. It is a figure at the time of seeing a mode that the nail | claw part of a camera mount cap is inserted and matched with the recessed part of the main body side mount part of a camera main body from the camera upper side. It is an external appearance perspective view of 1st Embodiment of the head mount cap of this invention. It is an external appearance perspective view of 2nd Embodiment of the camera mount cap of this invention. It is a figure at the time of seeing attachment of the camera mount cap to the main body side mount part of the camera main body shown in FIG. 7 from the left side surface side of the camera main body. It is a figure which shows 3rd Embodiment of the camera mount cap of this invention. It is a figure which shows 2nd Embodiment of the head mount cap of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Camera system 1a Camera head 1b Camera main body 2a, 3a Head mount cap 2b, 4b, 5b Camera mount cap 20b, 40b Cap main body part 21b, 42b Protrusion part 22b Claw part 10a Head side mounting part 10b, 30b Main body side mounting part 100b , 300b Contact point 101b Recessed part 102b Claw part 1000b Spring 51b Projection plate 511b Projection part

Claims (6)

A camera head having an imaging optical system and an image sensor is detachably mounted, and a body-side mount portion provided with a contact point for electrical connection with the camera head is provided. An image signal is output from the camera head. A camera mount cap that receives and processes signals and is detachably attached to the body side mount portion to protect the contact and the camera body inside,
A camera mount cap, comprising: a protrusion that slides on the contact point when attached to and detached from the main body side mount portion. A head-side mount provided with a photographing optical system and an image pickup device, and detachably attached to a camera body that receives an image signal and performs signal processing, and is provided with a contact point for electrical connection with the camera body A head mount cap that is attached to the camera body and transmits an image signal to the camera body, and is detachably attached to the head side mount part to protect the contacts and the inside of the camera head. And
A head mount cap comprising: a protrusion that slides on the contact when the head side mount is attached to or detached from the head side mount.   The camera mount cap according to claim 1, wherein the camera mount cap has a structure in which the camera mount cap is attached to and detached from the main body side mount portion while rotating.   The head mount cap according to claim 2, wherein the head mount cap has a structure in which the head mount cap is attached to and detached from the head side mount portion while rotating the head mount cap.   The camera mount cap according to claim 1, wherein the camera mount cap includes a first member having the protrusion and a second member that supports the first member.   The head mount cap according to claim 2, wherein the head mount cap includes a first member having the protrusion and a second member that supports the first member.

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