JP2018072562A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability of removal work when removing a detachable unit, as compared with the case where movement stop cancellation work and detachable unit removal work are carried out separately.SOLUTION: Provided is an electronic apparatus (U) comprising: a retained part (34) stopped at a retaining part (41) of a device body (U1) when a detachable unit (31) is mounted to the device body (U1); and a detachable unit removal member (16) supported on the device body (U1) and movable between a separate position separate from the retained part (34) and a contact position at which it is contacted with the retained part (34), the removable member (16) including a first contact part (21) inclined to a direction in which the retained part (34) comes off from the retaining part (41) and a direction in which the detachable unit (31) comes off from the device body (U1) and a second contact part (22) which, upon contact with the retained part (34), pushes it to a direction in which the retained part (34) comes off from the retaining part (41).SELECTED DRAWING: Figure 8

Description

  The present invention relates to an electronic device.

  In an image forming apparatus such as a copying machine or a printer, or an electronic device such as a personal computer, a technique described in Patent Document 1 below relates to a configuration for attaching and detaching a detachable body when replacing members or adding a function. Conventionally known.

  In Japanese Patent Application Laid-Open No. 2004-54967 as Patent Document 1, when the electronic device unit (400) is pulled out from the enclosure (300), when the operation button (407) is pressed, the lever (402) is engaged, so-called lock. Is released, and the lever (402) is rotated to move the electronic device unit (400) in the direction of being pulled out of the enclosure (300). Thereafter, the lever (402) is held and the electronic device unit (400 ) Is drawn out of the enclosure (300).

JP 2004-54967 A ("0070" to "0076")

  This invention makes it a technical subject to improve workability | operativity of a removal operation | work compared with the case where the cancellation | release operation | movement of a movement stop and the removal operation | work of a removal body are performed separately, when removing a removal body.

In order to solve the technical problem, an electronic device according to claim 1 is provided.
A detachable body that is detachably attached to the apparatus body;
A retaining portion provided in the apparatus body;
Provided in the detachable body, and when the detachable body is mounted on the apparatus main body, a to-be-retained portion that is stopped by the retaining portion;
A detachable member that is supported by the apparatus main body and is movable between a separation position separated from the removal prevention portion and a contact position that contacts the removal prevention portion, wherein the removal prevention portion is provided. A first contact portion that is inclined with respect to a direction in which the removable body is removed from the retaining portion and a direction in which the detachable body is detached from the apparatus main body; A second contact portion that pushes in a direction away from the portion, and the removal member,
It is provided with.

The invention according to claim 2 is the electronic apparatus according to claim 1,
Formed into a leaf spring shape having a base end portion and a free end portion, and the free end portion where the free end portion is stopped by the stop portion;
The first contact portion capable of contacting the base end portion;
The second contact portion capable of contacting the free end;
It is provided with.

The invention according to claim 3 is the electronic device according to claim 1 or 2,
An opening formed in the apparatus main body through which the removal preventing portion passes, and having a width that allows the removal preventing portion to pass through in a state of being elastically deformed when the detachable body is along an attachment / detachment direction;
It is provided with.

The invention according to claim 4 is the electronic device according to any one of claims 1 to 3,
An opening and closing member supported to be openable and closable by the apparatus body;
The detachable member disposed inside covered by the opening and closing member and operable when the opening and closing member is opened; and
It is provided with.

The invention according to claim 5 is the electronic device according to claim 4,
A locking passage formed on the opening and closing member;
In the apparatus main body, a locking attachment portion formed at a position corresponding to the locking passage portion of the opening / closing member, wherein the locking member for preventing theft of the electronic device can be attached in a state of passing through the locking passage portion. A locking attachment;
It is provided with.

The invention according to claim 6 is the electronic device according to any one of claims 1 to 5,
The apparatus main body configured by the main body of the image forming apparatus;
The detachable body constituted by an additional unit for adding a function to the main body of the image forming apparatus;
It is provided with.

According to the first aspect of the present invention, when removing the detachable body, it is possible to improve the workability of the detachment work as compared with the case where the movement stop releasing operation and the detachable body take-out operation are performed individually. .
According to the invention described in claim 2, the detachable body can be reliably removed as compared with the case where the first contact portion does not contact the base end portion.
According to the invention described in claim 3, when the detachable body is removed, the removable stopper can be brought into contact with the opening in an elastically deformed state, and the detachable body compared to the case without the configuration of the present invention. Can be reduced.

According to invention of Claim 4, compared with the case where the removal member is arrange | positioned on the outer side of an opening-and-closing member, the theft of a detachable body can be reduced.
According to the fifth aspect of the present invention, the theft of the detachable body can be reduced as compared with the case where the opening / closing member does not have the lock passage portion.
According to the sixth aspect of the present invention, it is possible to improve the workability of the detachment work of the detachable body attached to and detached from the image forming apparatus.

FIG. 1 is an overall explanatory view of an image forming apparatus according to a first embodiment. FIG. 2 is an explanatory diagram of the image forming apparatus according to the first exemplary embodiment, and is a left side view. 3A and 3B are explanatory views showing a state in which the opening / closing member is removed in the image forming apparatus of Embodiment 1, FIG. 3A is a perspective view, and FIG. 3B is a perspective view showing a state in which the detachable body is removed. 4 is an enlarged view of FIG. 3, FIG. 4A is a perspective view, and FIG. 4B is a left side view. FIG. 5 is an enlarged view of the main part of the left side view of the image forming apparatus with the exterior member removed. 6A and 6B are explanatory views of the removing member of the first embodiment, FIG. 6A is a perspective view, FIG. 6B is a view seen from the direction of arrow VIB in FIG. 6A, and FIG. 6C is a view seen from the direction of arrow VIC in FIG. 6D is a view seen from the direction of the arrow VID in FIG. 6A. 7 is an explanatory diagram of the detachable body of Example 1, FIG. 7A is a perspective view, and FIG. 7B is a view as seen from the VIIB direction of FIG. 7A. 8A and 8B are explanatory views when the detachable body of Example 1 is removed, FIG. 8A is an explanatory view showing a state where the detaching member is not operated, and FIG. 8B is a case where the detaching member is operated and the first contact portion is removed. FIG. 8C is an explanatory diagram of a state in which the stopper is in contact with the stopper, FIG. 8C is an explanatory diagram of a state in which the removal member is further operated from the state of FIG. FIG. 8E is an explanatory view of a state where the removal member is further operated from the state of FIG. 8D, and the removal preventing portion starts elastic deformation. FIG. 8E is an explanatory view of a state where the removal member is further operated from the state of FIG. 8F is an explanatory diagram of a state in which the removal preventing portion has come outside from the state of FIG. 8E.

Next, examples as specific examples of embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following examples.
In order to facilitate understanding of the following description, in the drawings, the front-rear direction is the X-axis direction, the left-right direction is the Y-axis direction, the up-down direction is the Z-axis direction, and arrows X, -X, Y, -Y, The direction indicated by Z and -Z or the indicated side is defined as the front side, the rear side, the right side, the left side, the upper side, the lower side, or the front side, the rear side, the right side, the left side, the upper side, and the lower side, respectively.
In the figure, “•” in “○” means an arrow heading from the back of the page to the front, and “×” in “○” is the front of the page. It means an arrow pointing from the back to the back.
In the following description using the drawings, illustrations other than members necessary for the description are omitted as appropriate for easy understanding.

FIG. 1 is an overall explanatory view of an image forming apparatus according to a first embodiment.
In FIG. 1, a printer U as an example of an electronic apparatus according to the first exemplary embodiment of the present invention, which is an example of an image forming apparatus, is an example of an apparatus main body, and includes a printer main body U1 as an example of an image forming apparatus main body. Have. A front cover U1a as an example of an opening / closing member is disposed on the front surface of the printer body U1. The front cover U1a is supported so as to be openable and closable around the center of rotation. Further, a discharge tray TRh as an example of a discharge unit is formed on the upper surface of the printer U. Further, a rear cover U1b as an example of an opening / closing member is rotatably supported on the rear surface of the printer body U1. The rear cover U1b is rotatably supported between a closed position indicated by a solid line and an open position indicated by a broken line. The rear cover U1b as an example of an opening / closing member can open the rear surface of the printer main body U1 when a paper jam or an internal inspection is performed.

The printer U according to the first embodiment includes a controller C as an example of a control unit. The controller C is electrically connected to an image processing unit IPS, a laser drive circuit DL as an example of a latent image forming circuit, and a power supply circuit E. Therefore, the controller C can output a control signal to the image processing unit IPS and the like.
At the rear of the printer U, a photosensitive member PR as an example of an image holding member that is rotationally driven is supported. Around the photoconductor PR as an example of the rotating member, along the rotation direction of the photoconductor PR, the charging roll CR, the latent image forming device LH, the developing device G, the transfer roll Tr as an example of the transfer member, and the image holding A photoconductor cleaner CL as an example of a body cleaner is disposed.

In FIG. 1, a charging roll cleaner CRc, which is an example of a cleaning device for a charging device, is disposed opposite to and in contact with the charging roll CR.
The latent image forming apparatus LH according to the first embodiment is an apparatus in which LEDs (Light Emitting Diodes) as an example of a latent image writing element are linearly arranged at predetermined intervals along a horizontal direction, a so-called LED head. It is configured.
The developing device G has a developing container V in which a developer is accommodated. In the developing container V, a developing roll Ga as an example of a developer holding member is disposed to face the photosensitive member PR. In the developing container V, a pair of circulation conveyance members Gb and Gc and a supply member Gd are disposed in order from the developing roll Ga. Further, a layer thickness regulating member Ge is disposed in the developing container V so as to face the developing roll Ga.

  A developer replenishing port V1 as an example of a replenishing portion is formed on the front upper surface of the developing container V. A developer supply path V3 as an example of a developer transport path is connected to the developer supply port V1. The developer supply path V3 is formed in a cylindrical shape extending forward. A supply auger V4 as an example of a developer conveying member is rotatably supported in the developer supply path V3. A toner cartridge TC as an example of a developer container is detachably supported at the front end of the developer supply path V3. The toner cartridge TC is formed with an outlet TC1 so that the developer can flow into the developer supply path V3 from the toner cartridge TC.

In FIG. 1, a paper feed tray TR <b> 1 as an example of a medium storage unit is disposed below the printer U. A pickup roll Rp as an example of a medium take-out member is disposed at the rear of the paper feed tray TR1. A separation roll Rs as an example of a medium separation member is disposed behind the pickup roll Rp. Above the separating roll Rs, a registration roll Rr as an example of a timing adjusting member is disposed.
A fixing device F is disposed above the transfer region Q4 where the photoconductor PR and the transfer roll Tr face each other. The fixing device F has a pair of fixing rolls Fh and Fp as an example of a fixing member, and a fixing region Q6 is formed by a pressure contact region of the pair of fixing rolls Fh and Fp.
Above the fixing device F, sheet guides SG1 and SG2 as examples of medium guide members are arranged. A discharge roll R1 as an example of a discharge member is disposed in front of the sheet guides SG1 and SG2.

(Description of image forming operation)
Print information is transmitted to the controller C of the printer U from a host computer or the like as an example of an external information transmission apparatus. When the controller C receives the print information, the image forming operation is started. The controller C outputs print information to the image processing unit IPS. The image processing unit IPS converts the print information into image information for forming a latent image, and outputs it to a laser driving circuit DL as an example of an image writing circuit at a preset time, that is, at a timing. The laser drive circuit DL outputs a drive signal to the latent image forming apparatus LH according to the input image information.

When the image forming operation is started, the photoconductor PR starts to rotate.
A charging voltage is applied from the power supply circuit E to the charging roll CR. In the charging region Q1 where the charging roll CR and the photoconductor PR face each other, the charging roll CR charges the surface of the photoconductor PR.
The charging roll cleaner CRc cleans the surface of the charging roll CR.
The latent image forming apparatus LH forms an electrostatic latent image corresponding to the image information on the surface of the photoconductor PR in the writing area Q2.

In the developing device G, the pair of circulation conveyance members Gb and Gc circulate and convey the developer inside the developing container V while stirring. The supply member Gd conveys the developer stirred by the circulation conveyance members Gb and Gc to the developing roll Ga. When the developer on the surface of the developing roll Ga passes through a region facing the layer thickness regulating member Ge, the layer thickness is regulated. A developing voltage is applied from the power supply circuit E to the developing roll Ga. In the developing region Q3 where the developing roll Ga and the photoconductor PR face each other, the electrostatic latent image on the photoconductor PR is developed into a visible image with the developer of the developing roll Ga.
The replenishment auger V4 is driven according to the amount of developer consumed in the developing device G, and the developer is replenished from the toner cartridge TC to the developing device G.

The pickup roll Rp sends out the recording sheet S accommodated in the paper feed tray TR1.
The separation rolls Rs are separated one by one when the pickup roll Rp sends out a plurality of recording sheets S. The recording sheets S separated one by one by the separating roll Rs are sent to the registration roll Rr. The registration roll Rr conveys the recording sheet S to the transfer area Q4 at a preset timing.
A transfer voltage is applied from the power supply circuit E to the transfer roll Tr. The transfer roll Tr transfers the toner image on the photoreceptor PR to the recording sheet S that passes through the transfer region Q4.
The photoconductor cleaner CL removes residual toner on the surface of the photoconductor PR in a cleaning region Q5 as an example of a cleaning region set on the downstream side of the transfer region Q4.

The recording sheet S on which the toner image is transferred in the transfer area Q4 is conveyed to the fixing device F in a state where the toner image is not fixed.
In the fixing device F, a fixing region Q6 is formed by the pressure contact region of the fixing rolls Fh and Fp. The recording sheet S conveyed to the fixing device F is fixed with a toner image by a pair of fixing rolls Fh and Fp in the fixing region Q6.
The recording sheet S on which the toner image is fixed is guided by sheet guides SG1 and SG2.
The discharge roll R1 discharges the recording sheet S to the discharge tray TRh.

(Description of appearance of image forming apparatus)
FIG. 2 is an explanatory diagram of the image forming apparatus according to the first exemplary embodiment, and is a left side view.
3A and 3B are explanatory views showing a state in which the opening / closing member is removed in the image forming apparatus of Embodiment 1, FIG. 3A is a perspective view, and FIG. 3B is a perspective view showing a state in which the detachable body is removed.
4 is an enlarged view of FIG. 3, FIG. 4A is a perspective view, and FIG. 4B is a left side view.

  2 and 3, in the printer U according to the first embodiment, a cover 1 as an example of an opening / closing member is supported on the left side rear portion of the printer body U1. 3A, the cover 1 includes a left plate 2 that covers the left side surface of the printer body U1, and a rear plate 3 that extends rightward from the rear end of the left plate 2. A plurality of hooks 2 a are formed on the inner surface of the left plate 2 as an example of a supported portion. The rear plate 3 is formed with a screw through hole 3a as an example of a fixed portion. In addition, a plurality of terminal ports 3b as an example of a passing portion of the connection member are formed above the screw through holes 3a. A lock passage port 3c as an example of a lock passage portion is formed below the screw through hole 3a.

  3 and 4, the printer main body U1 is formed with an option accommodating portion 6 as an example of a space inside the left plate 2 of the cover 1. For example, a memory or a hard disk (not shown) as an example of a detachable body that expands the function of the printer U can be added to the option storage unit 6. A hook mounting groove 7 is formed above and below the option accommodating portion 6 as an example of a support portion for the opening / closing member. The hook mounting groove 7 is formed at a position corresponding to the hook 2a.

A screw hole 11 is formed on the rear surface of the printer body U1 corresponding to the screw through hole 3a of the rear plate 3. Accordingly, the cover 1 can be attached to and detached from the printer body U1 with the screw 11a that passes through the screw through hole 3a and is fastened to the screw hole 11 in a state where the hook 2a of the cover 1 is mounted in the hook mounting groove 7. Installed. Therefore, as the cover 1 is attached / detached, the option accommodating portion 6 is opened or closed.
The external connection terminal 12 is disposed at a position corresponding to the terminal port 3b. The external connection terminal 12 of the first embodiment is configured by a USB terminal and a LAN terminal as an example, but may be configured by an arbitrary terminal according to the specifications of the printer U such as a parallel terminal (IEEE1284) or IEEE1394. It is.

Further, a lock attachment hole 13 as an example of a lock attachment portion is formed at a position corresponding to the lock passage port 3c. The lock attachment hole 13 of the first embodiment is formed based on a Kensington (trademark) security slot as an example, and a commercially available security wire as an example of a locking member for preventing theft can be attached. When the security lock is attached, it can be attached to the lock attachment hole 13 through the lock passage 3c with the cover 1 attached.
In FIG. 3B, a lock passage port 14 as an example of an opening is formed above the external connection terminal 12. A connector passage 15 as an example of an opening is formed on the right side of the lock passage 14.

FIG. 5 is an enlarged view of the main part of the left side view of the image forming apparatus with the exterior member removed.
3 to 5, a release lever 16 as an example of a detaching member is disposed at the rear upper end of the option accommodating portion 6. Therefore, the release lever 16 of the first embodiment is configured to be inoperable from the outside when the cover 1 is closed and the option accommodating portion 6 is covered with the cover 1.

6A and 6B are explanatory views of the removing member of the first embodiment, FIG. 6A is a perspective view, FIG. 6B is a view seen from the direction of arrow VIB in FIG. 6A, and FIG. 6C is a view seen from the direction of arrow VIC in FIG. 6D is a view seen from the direction of the arrow VID in FIG. 6A.
In FIG. 6, the release lever 16 has a handle portion 17 at the lower end. Above the handle portion 17, a pair of front and rear rotating shaft portions 18 are formed as an example of a rotation center. The release lever 16 is rotatably supported by the printer main body U1 with the rotation shaft portion 18. An arm portion 19 extending rearward is formed above the rotating shaft portion 18 as an example of a contact portion. On the front side of the arm part 19, an extrusion part 21 as an example of a first contact part is formed. The extruding part 21 has an inclined surface 21a that inclines to the right as it goes forward. A release portion 22 as an example of a second contact portion is formed behind the extrusion portion 21. The release part 22 of Example 1 has an inner surface along the front-rear direction.

7 is an explanatory diagram of the detachable body of Example 1, FIG. 7A is a perspective view, and FIG. 7B is a view as seen from the VIIB direction of FIG. 7A.
2 to 5 and 7, a wireless communication unit 31 as an example of a detachable body is detachably attached to the printer body U1 of the first embodiment. The wireless communication unit 31 of the first embodiment incorporates a circuit board (not shown) and a small wireless communication device for performing wireless communication with a personal computer, a server, and the like as an example of an image information transmission apparatus. That is, the wireless communication unit 31 according to the first embodiment is an additional unit for adding a wireless communication function to the printer U.

  A connector 32 as an example of a connection member is formed on the front surface of the wireless communication unit 31 so as to protrude forward. The connector 32 is electrically connected to a circuit board (not shown) inside the wireless communication unit 31. 7B, the connector 32 is configured to be connectable to the connector (33) disposed inside the printer main body U1 through the connector passage 15 when the wireless communication unit 31 is attached to the printer main body U1. Has been. In the first embodiment, the wireless communication unit 31 is positioned with respect to the printer body U1 by connecting the connectors 32 (33).

  On the left side of the connector 32, a lock protrusion 34 is provided as an example of a stopper portion. The lock protrusion 34 has a plate-like base portion 36 extending forward. At the front end of the base portion 36, a curved portion 37 that curves backward is formed as an example of a base end portion. The bending portion 37 is formed with a leaf spring portion 38 extending rearward as an example of an elastic deformation portion. A lock claw 39, which is an example of a free end portion and an example of a stopped portion, is formed at the rear portion of the leaf spring portion 38. The lock claw 39 is formed with a lock guide 39a as an example of a guide portion. The lock guide 39a is configured by an inclined surface that inclines to the left as it goes rearward. A lock surface 39b extending rightward is formed at the rear end of the lock guide 39a as an example of the surface to be stopped.

(Operation of Example 1)
In the printer U according to the first embodiment having the above-described configuration, the lock protrusion 34 passes through the lock passage port 14 when the wireless communication unit 31 is attached to the printer body U1. At this time, the width of the lock passage port 14 is formed narrower than the width between the base portion 36 and the outer end of the lock claw 39. Therefore, when the wireless communication unit 31 is mounted, the lock guide 39a is guided to the edge of the lock passing port 14, and the leaf spring portion 38 is mounted while being elastically deformed. When the rear end of the lock guide 39a passes through the lock passage port 14, the leaf spring portion 38 is elastically restored. Therefore, the lock surface 39b contacts a retaining surface (41) as an example of a retaining portion on the front side of the lock passage port 14. Therefore, in the state where the wireless communication unit 31 is mounted, even if the wireless communication unit 31 is pulled out backward, the wireless communication unit 31 cannot be removed due to the contact between the lock surface 39b and the retaining surface (41). Yes.

  8A and 8B are explanatory views when the detachable body of Example 1 is removed, FIG. 8A is an explanatory view showing a state where the detaching member is not operated, and FIG. 8B is a case where the detaching member is operated and the first contact portion is removed. FIG. 8C is an explanatory diagram of a state in which the stopper is in contact with the stopper, FIG. 8C is an explanatory diagram of a state in which the removal member is further operated from the state of FIG. FIG. 8E is an explanatory view of a state where the removal member is further operated from the state of FIG. 8D, and the removal preventing portion starts elastic deformation. FIG. 8E is an explanatory view of a state where the removal member is further operated from the state of FIG. 8F is an explanatory diagram of a state in which the removal preventing portion has come outside from the state of FIG. 8E.

  When removing the wireless communication unit 31, the security wire attached to the lock attachment hole 13 is removed, the cover 1 is removed, and the release lever 16 is operable. Then, the handle 17 of the release lever 16 is operated from the separated position shown in FIG. 8A to the front, that is, to the left. In FIG. 8, as the handle portion 17 is operated to the left, the arm portion 19 starts to move rightward about the rotation shaft 18. Therefore, as in the state shown in FIG. 8B from the state shown in FIG. 8A, first, the inclined surface 21 a of the pushing portion 21 contacts the curved portion 37. Here, the inclined surface 21a of the first embodiment is inclined with respect to the right, which is the direction in which the lock surface 39b is removed from the retaining surface 41, and the rear, which is the direction in which the wireless communication unit 31 is removed from the printer body U1. Yes. Therefore, as shown by the arrow Ya in FIG. 8B, a force directed diagonally to the right acts on the lock protrusion 34. Therefore, not only the force of the direction component in which the lock surface 39b comes off the retaining surface 41 but also the force of the direction component that tries to push the wireless communication unit 31 backward acts on the lock protrusion 34.

In FIG. 8B and FIG. 8C, when the release lever 16 is further operated, the release portion 22 contacts the lock claw 39. As shown by the arrow Yb in FIG. 8C, the release unit 22 applies a force that pushes the lock claw 39 to the right, that is, in a direction to release from the retaining surface 41.
In FIG. 8C and FIG. 8D, when the release lever 16 is further operated, the lock claw 39 is pushed and the leaf spring portion 38 is elastically deformed.
8D and 8E, when the release lever 16 is further operated, the leaf spring portion 38 is elastically deformed, and the outer end (left end) of the lock claw 39 is detached from the retaining surface 41. At this time, the pushing portion 21 applies a component force toward the rear, and the wireless communication unit 31 is pushed in the rear side, that is, in a direction away from the printer body U1. At this time, the connectors 32 and 33 start to come off. Therefore, the wireless communication unit 31 of the first embodiment is detached so that the right end rotates around the left end.

  8E and 8F, when the release lever 16 moves to the contact position shown in FIG. 8F and the connectors 32 and 33 come out, the leaf spring portion 38 is elastically restored to the state shown in FIG. 8F. At this time, the lock protrusion 34 is inclined with respect to the front-rear direction which is the attaching / detaching direction. Therefore, the width between the outer surfaces of the base portion 36 and the leaf spring portion 38 is larger than the width of the lock passage port 14, and the base portion 36 and the leaf spring portion 38 are not connected to the edge of the lock passage port 14. It becomes a pressed state. Therefore, the wireless communication unit 31 pushed backward is stopped by friction between the lock protrusion 34 and the lock passage port 14. Then, the operator can grasp and remove the wireless communication unit 31.

Therefore, in the printer U according to the first embodiment, by simply operating the release lever 16, the wireless communication unit 31 is released from being prevented from being detached, so-called lock is released, and the printer U is released from the printer body U1. Therefore, as in the technique described in Patent Document 1, unlocking, unlocking of the unit by rotating the lever, and unlocking compared to the case where each process is executed individually, such as pulling out the unit, The unit can be removed with a single operation, improving workability.
In the first embodiment, when the release lever 16 is operated, the wireless communication unit 31 moves backward. Therefore, it is possible for the operator to easily recognize that the worker has come off. Therefore, as compared with the case where it is difficult to know whether or not it has come off, unnecessary work such as confirmation work or re-operation of the release lever 16 is reduced, and workability is improved.

Further, in the printer U according to the first embodiment, when the release lever 16 is operated, the wireless communication unit 31 stops in a state where it is detached due to friction between the lock protrusion 34 and the lock passage port 14. Therefore, the wireless communication unit 31 removed from the printer body U1 does not fall. Therefore, it is reduced that the wireless communication unit 31 is dropped and damaged as compared with the case where the wireless communication unit 31 is detached and does not stop.
Further, in the printer U according to the first embodiment, the release lever 16 is disposed inside the cover 1. In the configuration in which the release lever 16 can be operated without removing the cover 1, only the wireless communication unit 31 can be easily removed from the printer U, and the wireless communication unit 31 may be stolen. Therefore, in the first embodiment, the theft of the wireless communication unit 31 is reduced compared to the configuration in which the release lever 16 can be operated without removing the cover 1.

Further, in the printer U of the first embodiment, a security wire is attached to the cover 1. Therefore, unless the security wire is removed, the cover 1 cannot be removed, and the wireless communication unit 31 cannot be removed. Therefore, in the first embodiment in which the lock passing port 3c is provided in the cover 1 and the lock mounting hole 13 is provided in the printer main body U1, theft can be suppressed as compared with the case where the lock passing port 3c and the like are not provided.
In the first embodiment, the pushing portion 21 is in contact with the bending portion 37. When pushing the position close to the free end of the leaf spring portion 38 with the push-out portion 21, the force in the oblique direction may be absorbed by the leaf spring portion 38 by elastic deformation, and the force of the component pushing backward may be reduced. Therefore, in Example 1, the pushing part 21 is pushing the curved part 37 of the base end side of a leaf | plate spring with few elastic deformations, and it can ensure the force of the component pushed backward.

(Example of change)
As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various change is performed within the range of the summary of this invention described in the claim. It is possible. Modification examples (H01) to (H09) of the present invention are exemplified below.
(H01) In the above-described embodiment, the printer U as an example of the image forming apparatus is illustrated. However, the present invention is not limited to this. For example, the printer U is configured by a copying machine, a FAX, or a multifunction machine having a plurality or all of these functions. It is also possible to do.
(H02) In the above embodiment, the printer U is exemplified by a configuration in which a single color developer is used. However, the present invention is not limited to this. For example, the printer U can be applied to a multicolor image forming apparatus of two or more colors. is there.

(H03) In the embodiment described above, the release lever 16 is preferably disposed inside the cover 1, but may be disposed at an operable position without opening the cover 1.
(H04) In the above-described embodiment, when the release lever 16 is operated, it is desirable to stop the wireless communication unit 31 at a position where it is detached, but it is also possible to have a structure that does not stop.
(H05) In the above embodiment, it is desirable that the cover 1 is provided with the lock passage port 3c and the printer body U1 is provided with the lock attachment hole 13 so that the security wire can be attached. The printer body U1 may be formed at another location.

(H06) In the above-described embodiment, the position where the extruding portion 21 contacts is not limited to the bending portion 37, and can be disposed at any position where the wireless communication unit 31 can be pushed out.
(H07) In the above-described embodiment, the configuration in which the release portion 22 contacts the lock claw 39 after the push-out portion 21 contacts the curved portion 37 is exemplified, but the present invention is not limited to this. It is also possible to adopt a configuration in which the pushing portion 21 comes into contact with the releasing portion 22 at the same time, or the pushing portion 21 comes into contact with the curved portion 37 after the releasing portion.
(H08) In the above embodiment, the image forming apparatus is exemplified as the electronic apparatus, but the present invention is not limited to this. The present invention can be applied to electronic devices such as personal computers and servers, as well as any electronic device to which a detachable body is attached and detached, such as a scanner device, an external hard disk, a television, and a recording device.

(H09) In the above-described embodiment, the wireless communication unit 31 as an example of the detachable body is illustrated, but the present invention is not limited to this. For example, the present invention can be applied to an arbitrary detachable body such as a large screen user interface, a charging unit of a coin-type copying machine, an IC card reader or camera for user authentication, a human sensor, or a brightness sensor.

1 ... Opening / closing member,
3c: Locking passage part,
13: Locking attachment part,
14 ... Opening,
16 ... removal member,
21 ... 1st contact part,
22 ... second contact part,
31 ... Additional unit, removable body,
34 ... Spot prevention part,
37 ... proximal end,
39 ... Free end,
41 .. retaining part,
U ... electronic equipment,
U1... Main body of the apparatus and main body of the image forming apparatus.

Claims (6)

A detachable body that is detachably attached to the apparatus body;
A retaining portion provided in the apparatus body;
Provided in the detachable body, and when the detachable body is mounted on the apparatus main body, a to-be-retained portion that is stopped by the retaining portion;
A detachable member that is supported by the apparatus main body and is movable between a separation position separated from the removal prevention portion and a contact position that contacts the removal prevention portion, wherein the removal prevention portion is provided. A first contact portion that is inclined with respect to a direction in which the removable body is removed from the retaining portion and a direction in which the detachable body is detached from the apparatus main body; A second contact portion that pushes in a direction away from the portion, and the removal member,
An electronic device characterized by comprising: Formed into a leaf spring shape having a base end portion and a free end portion, and the free end portion where the free end portion is stopped by the stop portion;
The first contact portion capable of contacting the base end portion;
The second contact portion capable of contacting the free end;
The electronic apparatus according to claim 1, further comprising: An opening formed in the apparatus main body through which the removal preventing portion passes, and having a width that allows the removal preventing portion to pass through in a state of being elastically deformed when the detachable body is along an attachment / detachment direction;
The electronic apparatus according to claim 1, further comprising: An opening and closing member supported to be openable and closable by the apparatus body;
The detachable member disposed inside covered by the opening and closing member and operable when the opening and closing member is opened; and
The electronic apparatus according to claim 1, further comprising: A locking passage formed on the opening and closing member;
In the apparatus main body, a locking attachment portion formed at a position corresponding to the locking passage portion of the opening / closing member, wherein the locking member for preventing theft of the electronic device can be attached in a state of passing through the locking passage portion. A locking attachment;
The electronic apparatus according to claim 4, further comprising: The apparatus main body configured by the main body of the image forming apparatus;
The detachable body constituted by an additional unit for adding a function to the main body of the image forming apparatus;
The electronic apparatus according to claim 1, further comprising:

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