JP2005252476A - Camera and accessory mount apparatus, and portable information device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an accessory mount apparatus capable of surely earthing static electricity intruded into the inside via an accessory mount member, and to provide a camera and a portable information device provided with the same. <P>SOLUTION: The camera is configured to include: the accessory mount member 14 with conductivity for fitting an external accessory; a fixing member 12 for fixing the accessory mount member; cover members 11, 13 with conductivity for protecting the inside of them; and a support member 35 for fixing the accessory mount member to the fixing member, and coming into contact with both the accessory mount member and the cover members to make the accessory mount member conductive to the cover members. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a grounding technology for an accessory mounting device in a camera, an accessory mounting device, and a portable information device, and more particularly to a portable electronic device, and an accessory mounting device capable of preventing an adverse effect on an internal electric circuit due to static electricity, The present invention relates to a camera and a portable information device to be applied.

  2. Description of the Related Art In recent years, various electronic devices that are equipped with an electronic circuit or the like and can be carried and used by users, such as portable information devices such as cameras, mobile phones, and small computers (hereinafter referred to as portable devices). Generically) is widely used.

  Since such a portable device is designed to be used by the user in hand, for example, static electricity charged to the user may be discharged toward the portable device in use. . In such a case, for example, static electricity is generated mainly through a conductive metal portion such as a fixing screw that is exposed and provided on the outer surface of an exterior member in a portable device or various accessory mounting portions that are mounted on the outer surface. It may flow into the mobile device. In this case, the electrical components included in the internal circuit of the portable device may be adversely affected.

  As an accessory attachment part in a conventional portable device, for example, there is a so-called hanging ring for attaching a strap or the like. In this hanging ring, for example, a member provided with an annular portion with respect to the portable device is fixed to the device main body in order to pass a string-shaped strap. And as an arrangement | positioning site | part of the said hanging ring, it is common to be provided in the side part etc. in the exterior member of a portable apparatus.

  A load corresponding to the weight of the portable device is applied to the strap suspension ring having such a configuration. For this reason, the suspension ring is often formed of, for example, a metal member to ensure a predetermined strength. Therefore, static electricity may flow into the interior of the portable device via an accessory mounting portion made of a metal member such as the hanging ring.

  Therefore, for example, Japanese Patent Application Laid-Open No. 2002-2002 discloses a technique for protecting an adverse effect on the electric circuits and electric components inside the portable device from the inflowing static electricity, particularly electric components such as an integrated circuit including a CPU (Central Processing Unit). Various proposals have been made and put to practical use according to Japanese Laid-Open Patent Publication No. -64281, Japanese Laid-Open Patent Publication No. 2001-7552, Japanese Laid-Open Patent Publication No. 11-261858, Japanese Laid-Open Patent Publication No. 2002-72317, and the like.

  A camera having a strap attachment device disclosed in Japanese Patent Application Laid-Open No. 2002-64281 includes a conductive elastic member for electrically connecting a columnar member constituting a suspension ring and a strap passing member, and the column The member and the ground terminal of the main board inside the camera are connected via a harness. As a result, static electricity flowing into the camera via the columnar member and the strap passing member is reliably guided to the ground terminal of the main board via the harness.

  The camera disclosed in Japanese Patent Application Laid-Open No. 2001-7552 is configured such that a holding plate of a tripod screw hole and a part of a strap fitting (hanging ring) are in direct contact with a ground pattern of a printed board. As a result, static electricity that flows into the camera through the holding plate of the tripod screw hole and the strap fitting is guided to the ground terminal on the substrate.

  In the camera disclosed in the above Japanese Patent Laid-Open No. 11-261858, a metal tripod screw hole or suspension ring, a metal exterior member, and an internal circuit board are fixed and held by screws or the like for electrical connection. Secured. According to this, static electricity flowing into the camera through the tripod screw hole or the suspension ring is guided to the ground terminal on the internal circuit board.

In the camera disclosed in JP-A-2002-72317, a leaf spring having elasticity and conductivity is provided between a conductive exterior member and a non-conductive inner cover member. The tip of the leaf spring is elastically brought into contact with the suspension ring through the hole in the inner cover. The tripod screw hole and the suspension ring are configured such that the exterior member and the inner cover member are fastened together with the internal fixing portion by a screw member. Furthermore, the suspension ring and the tripod screw hole are connected to the ground portion of the internal circuit board via a lug plate and a lead wire. According to this, static electricity flowing into the camera through the tripod screw hole and the suspension ring is guided to the ground terminal on the internal circuit board.
JP 2002-64281 A JP 2001-7552 A Japanese Patent Laid-Open No. 11-261858 JP 2002-72317 A

  However, in a conventional portable device, it is desired to reduce the size and weight of the device itself for the purpose of improving portability. However, as described above, in order to flow static electricity that enters from the outside of the device to the ground portion installed inside the device, it is complicated to newly arrange any mediating member or the like. At the same time, there is a need for a space for arranging the parts to be added at predetermined positions inside the device.

  When the tripod screw hole holding plate or strap bracket (suspension ring) is configured to directly contact the ground pattern of the internal circuit, the tripod screw hole retainer plate or strap bracket (suspension ring) It is necessary to form a member such as a special shape.

  Therefore, for the reasons described above, there arises a problem that the portable device itself is increased in size and a problem that it is difficult to reduce the manufacturing cost.

  The present invention has been made in view of the above-described points, and an object of the present invention is to reliably ground the static electricity flowing into the apparatus through the accessory mounting member with a simple structure. An accessory mounting device, and a camera and a portable information device including the accessory mounting device are provided.

  To achieve the above object, a camera according to the present invention is conductive and has an accessory mounting member for mounting an external accessory, a fixing member for fixing the accessory mounting member, and a conductive member for protecting the inside. A cover member and a holding member for fixing the accessory mounting member to the fixing member and contacting the accessory mounting member and the cover member by contacting both the accessory mounting member and the cover member. It is characterized by being configured.

  ADVANTAGE OF THE INVENTION According to this invention, the accessory mounting apparatus which can perform the earthing | grounding of the static electricity which flows into an apparatus inside via an accessory mounting member with a simple structure reliably, a camera provided with this accessory mounting apparatus, and portable information equipment Can be provided.

The present invention will be described below with reference to the illustrated embodiments.
1 and 2 are views showing a camera including an accessory mounting device according to an embodiment of the present invention. 1 is an external perspective view mainly showing the front side and the right side of the camera. FIG. 2 is an exploded perspective view showing main components of the camera shown in FIG.

  On the other hand, FIGS. 3 to 6 are views mainly showing an accessory mounting device provided in the camera of the present embodiment. Among these, FIG. 3 is a diagram showing a part of the camera (inner cover) of FIG. 1 taken out and showing only a part thereof, and is an enlarged perspective view of a main part showing an attachment site of the accessory attaching device to the inner cover. is there. 4 is a view showing a partial cross section of the camera of FIG. 1, and is a vertical cross sectional view in the vicinity of the attachment site of the accessory attachment device. 5 and 6 are cross-sectional views showing the attachment state of the accessory attachment device to the exterior member of the camera of FIG. Among these, FIG. 5 shows a state before the front cover is assembled to the middle cover and the rear cover. FIG. 6 shows a state after the front cover is assembled to the middle cover and the rear cover.

  One embodiment of the present invention described below shows an example in which the accessory mounting device of the present invention is applied to a camera as a portable device that acquires an optical image as an image.

  First, an outline of the configuration of a camera provided with the accessory mounting device of the present invention will be described below with reference to FIGS.

  The camera 1 of the present embodiment includes a front cover 11 that is a cover member that covers the front side and protects the inside, and a rear cover 13 that is a cover member that covers the back side and protects the inside. And the outer surface is covered and the inside is protected by the exterior member comprised in the form which combined three members with the middle cover 12 which is a cover member which covers and protects both side surfaces. In this case, the front cover 11 and the rear cover 13 are formed of a conductive member (made of metal) such as metal. Further, the inner cover 12 is formed of a molded member (made of resin) such as resin.

  In an internal space formed by these exterior members (11, 12, 13), as shown in FIG. 2, a photographing optical system for forming a subject image and a drive for moving the photographing optical system in a direction along its optical axis. A lens barrel unit 20 including an image sensor such as a CCD that photoelectrically converts an optical image formed by a member or a photographing optical system, a flexible printed circuit board that transmits an output signal from the image sensor, and the camera 1 holds a main board 21 on which various electrical components that form a control circuit etc. for overall control of 1 are mounted, a flash light emitting device, a photometric device, a power supply device, a liquid crystal display device (all not shown), and the like The main body frame 22 and the like constituting the main body portion of the camera 1 are disposed and fixedly held at predetermined positions.

  On the front side of the front cover 11, a photographic lens window 11a is provided at a position corresponding to the objective lens optical system in the photographic optical system of the lens barrel unit 20 and serves as an opening for allowing an external light beam to enter the photographic optical system. And a flash light emission window 11b which is provided at a position corresponding to the flash light emission part of the flash light emission device and serves as an opening for emitting flash light from the flash light emission part. Further, a tripod screw hole (not shown) for mounting accessory equipment such as a tripod is formed on the bottom surface side of the front cover 11.

  On the inner cover 12, a connector 18 (see FIG. 3) is fixedly held by a connector fixing screw 19 (fastening member) on the bottom side on the inner side. A battery chamber 12c (see FIG. 2) is provided on the bottom surface side of the inner cover 12. A battery chamber lid 15 is disposed at a portion facing the battery chamber 12c. The battery chamber lid 15 is pivotally supported with respect to the fixed portion of the middle cover 12 so as to be rotatable between a position where the battery chamber 12c is covered and shielded from the outside and a position where the inside of the battery chamber 12c is opened. Has been.

  Further, on the upper surface side of the middle cover 12, a shutter button 16 that is operated when performing a photographing operation and a setting dial 17 that is operated when performing various settings of the camera 1 (see FIG. 1; see FIG. 2). Operation members such as (not shown) are disposed at predetermined positions.

  The side surface of the inner cover 12, that is, the right side when viewed from the front side (front side) of the camera 1, is provided with a through hole 14 a that forms a closed substantially ring shape and has conductivity. The suspension ring 14 is fixed to the middle cover 12 so as to be integrated. For example, a hanging strap (strap) used when the camera 1 is carried can be passed through the through hole 14 a of the hanging ring 14. That is, the suspension ring 14 is an accessory attaching member for attaching an external accessory such as a strap having conductivity. Further, the middle cover 12 serves as a fixing member that fixes the suspension ring 14 that is an accessory mounting member.

  Next, the accessory mounting device provided in the camera 1 will be described in detail below with reference to FIGS. 2 and 3 to 6.

  As described above, the accessory mounting device in the camera 1 of the present embodiment includes, for example, the hanging ring 14 for attaching a hanging strap (strap) and the like, the middle cover 12 that is a fixing member for fixing the hanging ring 14, and the side surface of the middle cover 12. It is comprised by several members, such as the suspension ring holding member 35 (it mentions later for details) which is a holding member which fixes and holds the suspension ring 14 in a predetermined part.

  More specifically, the suspension ring 14 has a substantially half-moon shape as shown in FIG. 4 and is subjected to, for example, a mold metal plating process on the outer surface of a conductive member such as metal or a molded member such as resin. Thus, the conductive member is formed. A substantially oval through hole 14a is formed through the substantially central portion. In other words, the suspension ring 14 forms a substantially ring shape.

  A plurality of positioning projections 14d are provided on the flat surface portion of the suspension ring 14 so as to project outward. Further, a latching protrusion 14b having a circumferential groove 14c is projected from a substantially central portion of the plane portion.

  On the other hand, a predetermined part of the middle cover 12 where the suspension ring 14 is to be arranged, that is, the right side surface of the middle cover 12 has a shape in which the suspension ring 14 can be disposed and fixed. That is, the recess 12g having an internal method in which the length and width of the suspension ring 14 are approximately the same is formed. The suspension ring 14 is fitted in the recess 12g. In this case, the recess 12g corresponding to the locked protrusion 14b of the suspension ring 14 corresponds to the through hole 12h and a plurality of positioning protrusions 14d (two in the present embodiment) of the suspension ring 14. The same number (two in this embodiment) of positioning holes 12f are formed.

  On the other hand, on the right side surface of the middle cover 12, each of a predetermined portion near the top surface and a predetermined portion near the bottom surface around the portion where the suspension ring 14 is arranged penetrates the side wall of the middle cover 12. A through-hole 12e is formed.

  And the suspension ring 14 is fixed by the suspension ring restraining member 35 which is a holding member with respect to the predetermined part of the side surface of the inner cover 12. The suspension ring restraining member 35 is formed by bending a plate-like member having elasticity and made of metal or the like, such as a leaf spring. Therefore, the suspension ring restraining member 35 presses the inner cover 12 by its own elastic force and holds it.

  Further, in this case, the hanging ring restraining member 35 is bent so that a step is formed between the proximal end portion 35a (one end portion) and the distal end portion 35b (other end portion), and the distal end A substantially U-shaped notch 35c is formed in the portion 35b. The notch 35c is adapted to fit into the circumferential groove 14c of the locking projection 14b of the suspension ring 14 in a state where the suspension ring 14 is disposed at a predetermined portion of the middle cover 12. Therefore, the circumferential groove 14c is set so as to have a width dimension substantially equal to or slightly wider than the plate thickness of the suspension ring restraining member 35. Therefore, the suspension ring restraining member 35 thereby locks the suspension ring 14 with the side wall of the inner cover 12 interposed therebetween. Therefore, the suspension ring holding member 35 is locked so that the suspension ring 14 does not easily come off from the inner cover 12.

  In other words, the notch 35c of the suspension ring restraining member 35 (holding member) is a part of the suspension ring 14 (accessory attachment member) assembled to the outer surface side of the inner cover 12 (fixing member) (the periphery of the locked projection 14b). By locking the groove 14 c), it functions as a locking portion that locks the suspension ring 14 on the inner surface side of the inner cover 12. The notch 35c (locking portion) is connected to an opening 35cc that leads the suspension ring 14 (accessory mounting member) to a position where the suspension ring holding member 35 is locked.

  Furthermore, the stepped portion provided at the base end portion 35a and the tip end portion 35b of the suspension ring restraining member 35 has a fitting protrusion that protrudes in the vicinity of the side edge portion of the front cover 11 as shown in FIGS. The part 11f and the fitting protrusion 13f protruding near the side edge of the rear cover 13 are fitted to each other. Therefore, the fitting protrusion 13f of the rear cover 13 is fitted to the step of the distal end portion 35b of the hanging ring restraining member 35, and the fitting protrusion 11f of the front cover 11 is fitted to the base end portion 35a of the hanging ring restraining member 35. It fits into the step.

  In this case, each of the base end portion 35a and the tip end portion 35b is elastically brought into contact with each of the front cover 11 and the rear cover 13 which are cover members made of metal or the like to obtain conduction. That is, each step part of the base end part 35a and the front-end | tip part 35b in the suspension ring restraint member 35 is a contact part which contacts the two cover members elastically.

  In other words, the suspension ring restraining member 35 serves as a holding member that secures the suspension ring 14 (accessory attachment member) to the inner cover 12 (fixing member). At the same time, the suspension ring holding member 35 elastically contacts both the suspension ring 14 and the cover members (the front cover 11 and the rear cover 13), and the suspension ring 14 and the cover member (front cover). 11 and the rear cover 13).

  Further, in this state, as shown in FIG. 4, a plurality of tab portions 13 d integrally formed on the side edge portion of the rear cover 13 are in contact with the inner surface side of the side wall of the middle cover 12. Has been. Further, a plurality of fixed tab portions 11 d that are integrally formed on the side edge portion of the front cover 11 are arranged on the inner surface side of the tab portion 13 d of the rear cover 13.

  In other words, the tab portion 13 d of the rear cover 13 is formed with through holes 13 e at portions corresponding to the plurality of through holes 12 e of the middle cover 12. The plurality of fixing tab portions 11d of the front cover 11 are formed with through screw holes 11e at portions corresponding to the plurality of through holes 12e and the plurality of through holes 13e, respectively.

  And the fixing screw 36 is penetrated with respect to the through-hole 12e, the through-hole 13e, and the through-screw hole 11e, and, thereby, each exterior member (11, 12, 13) is fixed. In this case, the fixing screw 36 is first inserted into the through hole 12e from the outside of the side wall of the middle cover 12, and after passing through this, is inserted through the through hole 13e of the rear cover 13, and then through the front cover 11. Screwed into the screw hole 11e. Thus, the three exterior members (11, 12, 13) of the camera 1 are assembled together.

  In the camera 1 of this embodiment configured as described above, a procedure for assembling the vicinity of the accessory mounting apparatus will be briefly described below.

  First, the suspension ring 14 is fitted into a predetermined position on the side surface portion of the inner cover 12, that is, the recess 12g. In this case, the latching protrusion 14b of the suspension ring 14 is disposed in a portion penetrating the through hole 12h of the middle cover 12, and a plurality of positioning protrusions 14d are disposed in the corresponding positioning holes 12f of the middle cover 12. Fit.

  In this state, the notch 35c of the suspension ring restraining member 35 is engaged with the circumferential groove 14c of the latching protrusion 14b of the suspension ring 14 while sliding. As a result, the suspension ring 14 and the suspension ring restraining member 35 are engaged with each other with the side wall of the middle cover 12 interposed therebetween. Accordingly, the suspension ring 14 is fixed so as not to easily fall off at the side surface portion of the inner cover 12.

  The rear cover 13 is attached to the middle cover 12 in this state. In this case, as shown in FIG. 5, the fitting protrusion 13 f of the rear cover 13 is fitted into a gap formed by the step of the tip 35 b of the suspension ring restraining member 35 and the inner surface of the side wall of the middle cover 12. Then, the front-end | tip part 35b of the electroconductive suspension ring suppression member 35 will be in the state which contacted the back side cover 13 which has electroconductivity. Thereby, the suspension ring 14 (accessory attachment member) and the rear cover 13 (cover member) are electrically connected via the suspension ring restraining member 35 (holding member).

  In this state, the through hole 12e of the middle cover 12, the through hole 13e of the rear cover 13, and the through screw hole 11e of the front cover 11 are arranged at corresponding positions. Here, the fixing screw 36 is first inserted into the through hole 12 e from the outside of the side wall of the middle cover 12. The fixing screw 36 penetrating through the through hole 12e is then inserted into the through hole 13e of the rear cover 13 and penetrates therethrough. Further, the fixing screw 36 is screwed into the through screw hole 11 e of the front cover 11.

  In this way, the rear cover 13 and the middle cover 12 among the three exterior members (11, 12, 13) of the camera 1 are assembled together. At this time, as described above, the suspension ring 14 and the rear cover 13 are electrically connected via the suspension ring restraining member 35 (holding member).

  Next, the front cover 11 is attached to the middle cover 12 in this state. In this case, as shown in FIG. 6, the fitting protrusion 11 f of the front cover 11 is fitted into a gap formed by the step of the base end portion 35 a of the suspension ring restraining member 35 and the inner surface of the side wall of the middle cover 12. Then, the base end part 35a of the conductive suspension ring restraining member 35 comes into contact with the front cover 11 having conductivity. Thereby, the suspension ring 14 (accessory attachment member) and the front cover 11 (cover member) are electrically connected via the suspension ring restraining member 35 (holding member).

  In this state, the through hole 12e of the middle cover 12, the through screw hole 11e of the front cover 11, and the through screw hole 11e of the front cover 11 are arranged at corresponding positions. Here, the fixing screw 36 is first inserted into the through hole 12 e from the outside of the side wall of the middle cover 12. The fixing screw 36 penetrating through the through hole 12e is then inserted into the through hole 13e of the rear cover 13 and penetrates therethrough. Further, the fixing screw 36 is screwed into the through screw hole 11 e of the front cover 11.

  In this manner, the middle cover 12 and the front cover 11 of the three exterior members (11, 12, 13) of the camera 1 are assembled together. At this time, as described above, the suspension ring 14 and the front cover 11 are brought into a conductive state via the suspension ring restraining member 35 (holding member).

  As described above, according to the above-described embodiment, the holding member (the hanging ring restraining member 35) that fixes the accessory mounting member (the hanging ring 14) to the fixing member (the middle cover 12) is the The cover members (the front cover 11 and the rear cover 13) are arranged so as to come into contact with each other and to be conducted.

  Thereby, the camera 1 reliably grounds the static electricity flowing into the interior via the accessory mounting member (the suspension ring 14) without impairing the workability when assembling the exterior members (11, 12, 13). be able to. Accordingly, the electrical components and the like disposed inside the camera 1 can prevent adverse effects caused by static electricity flowing into the interior via the accessory mounting member.

  Since the holding member (suspending ring restraining member 35) is configured to be engaged with the peripheral groove 14c of the accessory mounting member (suspending ring 14) with the fixing member (inner cover 12) interposed therebetween, a screw or the like for fixing the holding member (suspending ring restraining member 35). This fixing member is not required and can contribute to simplification of the configuration.

  Furthermore, in this case, since the holding member (suspending ring restraining member 35) is configured to only fit into the peripheral groove 14c of the accessory mounting member (suspending ring 14), it contributes to the improvement of assembly workability. Can do.

  Further, since the holding member (the suspension ring restraining member 35) is in contact with the two cover members (the front cover 11 and the rear cover 13), reliable conduction can be ensured.

  In the above-described embodiment, the example in which the present invention is applied to the hanging ring for attaching the strap as the accessory attaching member has been described. However, the invention is not limited to this example. It can be easily applied to a tripod mounting portion, an external strobe mounting portion, or the like.

  Further, the configuration of the accessory mounting device of the above-described embodiment is applied to various small devices that can be carried and carried in the same manner as a camera, such as a portable information device, in addition to the camera shown in the embodiment. Needless to say, the present invention can be applied to the accessory mounting apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view mainly showing a front side and a right side of a camera including an accessory mounting device according to an embodiment of the present invention. The disassembled perspective view which shows the main structural members of the camera of FIG. The principal part expansion perspective view which is a part of structural member of the camera of FIG. 1, and shows the attachment site | part of the accessory attachment apparatus with respect to an inside cover. It is a figure which shows the cross section of a part of camera of FIG. 1, Comprising: The longitudinal cross-sectional view of the attachment site | part vicinity of an accessory attachment apparatus. FIG. 2 is a cross-sectional view illustrating a state in which the accessory mounting device is attached to the exterior member of the camera in FIG. 1 and illustrates a state before the front cover is assembled to the middle cover and the rear cover. FIG. 2 is a cross-sectional view showing a state of attachment of the accessory attachment device to the exterior member of the camera of FIG. 1, showing a state after the front cover is assembled to the middle cover and the rear cover.

Explanation of symbols

1 …… Camera 11 …… Front cover 11d …… Fixing tab 11e …… Through screw hole 11f …… Fitting projection 12 …… Medium cover 12e …… Through hole 12f …… Positioning hole 12g …… Recess 12h …… Through hole 13 …… Rear cover 13d …… Tab portion 13e …… Through hole 13f …… Fitting projection 14 …… Suspension ring 14a …… Through hole 14b …… Locked projection 14c …… Circumferential groove 14d ... Positioning projection 20 ... Lens barrel unit 21 ... Main substrate 22 ... Main body frame 35 ... Suspension ring restraining member 35a ... Base end 35b ... Tip 35c ... Notch 36 ... Fixed screw agent Patent Attorney Susumu Ito

Claims (11)

An accessory mounting member for attaching an external accessory having electrical conductivity;
A fixing member for fixing the accessory mounting member;
A cover member having electrical conductivity and protecting the interior;
The accessory mounting member is fixed to the fixing member, and the holding member for bringing the accessory mounting member and the cover member into conduction by contacting both the accessory mounting member and the cover member;
A camera characterized by being configured to include. The holding member is formed to have a locking portion that locks a part of the accessory mounting member assembled on the outer surface side of the fixing member on the inner surface side of the fixing member. 1. The camera according to 1. The camera according to claim 1, wherein the holding member has a contact portion that elastically contacts the cover member. 4. The camera according to claim 2, wherein the holding member is formed with an opening through which the locking portion leads to a position where the accessory mounting member is locked. 5. The holding member includes the contact portions at both ends of the locking portion,
The cover member comprises a front cover that covers and protects the front side of the camera and a rear cover that covers and protects the back side of the camera,
The camera according to claim 3, wherein one end of the contact portion is in contact with the front cover, and the other end is in contact with the rear cover. The camera according to claim 5, wherein the fixing member is a resin cover member that is sandwiched between the front cover and the rear cover and forms a side surface of the camera. The camera according to any one of claims 1 to 6, wherein the accessory attaching member attaches a strap as an external accessory. An accessory mounting member for attaching an external accessory having electrical conductivity;
A fixing member for fixing the accessory mounting member;
The accessory attachment member is fixed to the fixing member, and the accessory attachment member and the cover member are electrically connected to each other and electrically connected to the cover member that is electrically conductive with the accessory attachment member and protects the inside. Members,
An accessory mounting device comprising: The accessory mounting apparatus according to claim 8, wherein the holding member includes a contact portion that elastically contacts the cover member. An accessory mounting member for mounting an external accessory having conductivity;
A fixing member for fixing the accessory mounting member;
A cover member having electrical conductivity and protecting the interior;
The accessory attachment member is fixed to the fixing member, and the accessory attachment member and the cover member are electrically connected to each other and electrically connected to the cover member that is electrically conductive with the accessory attachment member and protects the inside. Members,
A portable information device characterized by comprising: The portable information device according to claim 10, wherein the holding member includes a contact portion that elastically contacts the cover member.

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