JP3603022B2 - Image reading device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image reading device provided with a hand scanner.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as an image reading apparatus provided with a hand scanner which is mechanically and electrically detachably provided to an apparatus main body, as shown in FIG. Guide member 101, a holding spring 102 for holding the hand scanner in a state of being attached to the apparatus main body, a connector 103 for electrically connecting the hand scanner to the apparatus main body, and a sensor for detecting the state of attachment of the hand scanner to the apparatus main body. On the hand scanner side, a guide groove 105 in which the guide member 101 is fitted and the holding spring 102 is provided is provided on the hand scanner side. FIGS. 9 and 10 show a configuration in which the hand scanner is mechanically and electrically attached and detached. As described above, the apparatus main body has a first guide member 201 for guiding insertion and ejection of the hand scanner and a connector 202 for electrically connecting the hand scanner to the apparatus main body. And a second guide member 204 for guiding insertion and ejection of the hand scanner and holding the hand scanner in an attached state with respect to the apparatus main body, while the first and second hand scanners are provided on the hand scanner side. An L-shaped guide groove 205 into which the guide members 201 and 204 are inserted is provided, and the hand scanner is attached to and detached from the apparatus main body by moving a part of the hand scanner in the horizontal direction while being inclined. The hand scanner is electrically connected to the device by releasing the tilt of the hand scanner after inserting it That has a structure that has been proposed.
[0003]
[Problems to be solved by the invention]
However, in the case where the hand scanner is attached to and detached from the apparatus main body by moving the hand scanner in the horizontal direction with respect to the apparatus main body as in the former case, the hand scanner is not completely attached to the apparatus main body. Even in the state, since the state is held by the holding spring 102, it is necessary to provide the sensor 104 for detecting that the hand scanner is completely attached to the apparatus main body, and the number of parts and the circuit scale are increased. However, as described in the latter case, the hand scanner is configured to attach and detach the hand scanner to and from the apparatus main body by moving the hand scanner in a horizontal direction while tilting a part of the hand scanner. The hand scanner is electrically connected to the main unit when it is completely attached to the main unit. However, a sensor for detecting that the hand scanner is completely attached to the apparatus main body is not required, but the hand scanner holding housing 202 needs to be provided separately from the apparatus main body. However, there is a problem that the performance of the hand scanner is deteriorated and the attaching / detaching operation of the hand scanner becomes complicated.
[0004]
SUMMARY OF THE INVENTION It is an object of the present invention to provide an image reading apparatus capable of attaching and detaching a hand scanner to and from the apparatus main body without increasing the number of parts and the circuit scale and deteriorating the attaching / detaching operation of the hand scanner. is there.
[0005]
[Means for Solving the Problems]
The present invention relates to an image reading apparatus including a hand scanner detachably provided to an apparatus main body, wherein an urging means for urging the hand scanner in a discharge direction with respect to the apparatus main body;
Holding means for holding the hand scanner in a mounted state with respect to the apparatus main body against the urging by the urging means;
Release means for releasing the holding by the holding means,
The image reading apparatus is characterized in that the urging means is constituted by a conductive member connected to the ground.
[0007]
Further, according to the present invention, in addition to the above configuration, the urging means is arranged near a connector for electrically connecting the hand scanner and the apparatus main body.
[0008]
Further, according to the present invention, in addition to the above configuration, the holding means is constituted by a rotatable holding claw having a projection and a guide groove having a locking portion with which the projection of the holding claw is engaged. On the other hand, the release means is constituted by a lever for rotating the holding claw.
[0009]
Therefore, according to the present invention, the hand scanner can be held in the state of attachment to the apparatus main body by the holding means by inserting the hand scanner to the state of attachment to the apparatus main body against the urging by the urging means. By releasing the holding by the holding means by the releasing means when the hand scanner is in the mounted state with respect to the apparatus main body, the hand scanner is discharged in the discharge direction with respect to the apparatus main body by the urging force of the urging means, and the hand scanner is released. It is possible to make the apparatus main body detachable.
[0010]
Further, according to the present invention, by forming the urging means by a conductive member connected to the ground, it is possible to prevent generation of static electricity due to attachment and detachment of the hand scanner and the apparatus main body.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0012]
FIG. 1 is a perspective view showing an external configuration of a facsimile apparatus according to an embodiment of the image reading apparatus of the present invention, FIGS. 2 to 4 are perspective views showing main components of the facsimile apparatus, and FIG. 5 is a facsimile apparatus. FIGS. 3A and 3B are side views showing a configuration of a main part of FIG. 3A, wherein FIG. FIG. 6 is a perspective view showing a main part configuration of the apparatus main body in the facsimile apparatus, and FIG. 7 is a side view showing a main part configuration of the apparatus main body in the facsimile apparatus.
[0013]
Hereinafter, a facsimile apparatus according to an embodiment of the present invention will be described with reference to FIGS.
[0014]
1 to 7, the hand scanner A has a concave connector 1 used for electrical connection with the device main body B on a surface to be inserted into the device main body B, and a rectangular shape arranged to surround the concave connector 1. Guide grooves 3 each having an opening on the surface to be inserted into the apparatus main body B are provided on both side surfaces of the conductive metal part 2 having the shape of a circle in the direction of insertion into the apparatus main body B, respectively.
[0015]
The guide groove 3 has an insertion portion 3a formed in a parallelogram inclined downward from the device main body insertion side toward the discharge side, and has an apex upward in an upper portion of the device main body discharge side of the insertion portion 3a. It has a locking portion 3b formed in a triangular shape, and a guide portion 3c formed in a rectangular shape toward the discharge side at the upper portion of the insertion portion 3a on the apparatus main body side.
[0016]
A hand scanner storage section C is formed in the apparatus main body B, and a guide 4 and a holding claw 5 inserted into the guide groove 3 are provided on both inner side surfaces thereof, and a convex type inserted into the concave connector 1 is provided on the inner insertion surface. A leaf spring 7 that urges the connector 6 and the hand scanner A in the discharge direction and that comes into contact with the conductive metal part 2 at the time of the urging is provided.
[0017]
The holding claw 5 has a projection 5a that engages with the locking portion 3b of the guide groove 3. The holding claw 5 is attached so as to be rotatable about the fulcrum 5b and urged upward. The other end of the lever 9 having one end attached to the lower position of the release button 8 is attached at a position farther than 5b. Although the lever 9 is attached to only one of the two holding claws 5, the two holding claws 5 are connected by a connecting mechanism (not shown), and are configured to rotate in synchronization with each other.
[0018]
Further, the leaf spring 7 has a portion protruding into the hand scanner storage section C having a rectangular shape, and at least one of the leaf springs 7 is arranged so as to surround the convex connector 6 and is made of a conductive member. It is connected to a ground wire 12 via a roller shaft 10 and a coil spring 11.
[0019]
First, an operation of the facsimile apparatus configured as described above when the hand scanner A is mounted on the apparatus main body B will be described.
[0020]
When the hand scanner A removed from the apparatus main body B is horizontally inserted into the apparatus main body B, first, the guide 4 and the holding claw 5 are inserted into the insertion portion 3a of the guide groove 3, and when the hand scanner A is continuously inserted, the guide The holding claw 5 is inserted while rotating downward about the fulcrum 5b along the inclination of the insertion portion 3a, and when further inserted, the insertion surface of the hand scanner A and the leaf spring 7 come into contact with each other and the hand scanner A When the guide 4 is continuously inserted against the urging force, the guide 4 is engaged with the guide portion 3c of the guide groove 3, and the projection 5a of the holding claw 5 is engaged with the guide groove 3. The convex connector 6 is inserted into the concave connector 1 into the stop 3b, and the mounting of the hand scanner A on the apparatus main body B is completed.
[0021]
On the other hand, when the convex connector 6 is inserted into the concave connector 1 and before the projection 5a of the holding claw 5 is inserted into the locking portion 3b of the guide groove 3, the hand scanner A is When the insertion is released, the hand scanner A is moved in the discharging direction by the urging force of the leaf spring 7, the convex connector 6 is disengaged from the concave connector 1, and the mounting of the hand scanner A on the apparatus main body B is completed. do not do.
[0022]
Next, an operation for removing the hand scanner A from the apparatus main body B will be described.
[0023]
When the release button 8 is pressed while the hand scanner A is mounted on the apparatus main body B, the pressing force on the release button 8 is transmitted to the holding claw 5 via the lever 9 and the holding claw 5 is centered on the fulcrum 5b. Pivot downward. At this time, the holding claw 5 on the other side to which the lever 9 is not attached also rotates downward about the fulcrum 5b by the operation of a connecting mechanism (not shown).
[0024]
When the holding claw 5 rotates downward about the fulcrum 5b, the connection between the projection 5a of the holding claw 5 and the locking portion 3b of the guide groove 3 is released, and the hand scanner A is pressed by the urging force of the leaf spring 7. Is moved in the discharge direction, and the convex connector 6 escapes from the concave connector 1.
[0025]
Therefore, according to the above configuration, by inserting the hand scanner A horizontally into the apparatus main body B, the mounting operation of the hand scanner A on the apparatus main body B can be performed, and by pressing the release button 8 The operation of removing the hand scanner A from the apparatus main body B can be performed, and the convex connector 6 is inserted into the concave connector 1 only when the hand scanner A is completely attached to the apparatus main body B. The mounting state of the hand scanner A and the apparatus main body B can be detected only by electrically checking the connection state between the convex connector 6 and the concave connector 1.
[0026]
That is, it is possible to detect that the hand scanner A is completely attached to the apparatus main body B without separately providing a sensor for detecting that the hand scanner A is completely attached to the apparatus main body B.
[0027]
Further, according to the above configuration, when the convex connector 5 is inserted into and removed from the concave connector 1, static electricity may be generated between the concave connector 1 and the convex connector 6; Since the current flows to the ground wire via the metal part 2, the leaf spring 7, the roller shaft 10, and the coil spring 11, it is possible to prevent the electric circuit from being broken by the generated static electricity.
[0028]
That is, the static electricity generated between the connector 1 and the convex connector 6 can flow to the ground wire by using the leaf spring 7 for discharging the hand scanner A.
[0029]
【The invention's effect】
As described above, according to the present invention, the hand scanner is held in the mounted state with respect to the apparatus main body by inserting the hand scanner into the mounted state with respect to the apparatus main body, and when the hand scanner is not inserted into the mounted state with respect to the apparatus main body. The hand scanner can be ejected to the apparatus main body without requiring a sensor for detecting that the hand scanner is completely attached to the apparatus main body or a complicated configuration and complicated operation. Can be detached.
[0030]
Further, according to the present invention, the member for ejecting the hand scanner when the hand scanner is not inserted to the state of being attached to the main body of the apparatus is constituted by a conductive member connected to the ground, so that the hand scanner and the apparatus can be used. Since generation of static electricity due to attachment and detachment to and from the main body can be prevented, destruction of an electric circuit due to the generated static electricity can be prevented.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating an external configuration of a facsimile apparatus as an embodiment of an image reading apparatus according to the present invention.
FIG. 2 is a perspective view showing a main configuration of the facsimile machine.
FIG. 3 is a perspective view showing a main configuration of the facsimile machine.
FIG. 4 is a perspective view showing a main part configuration of the facsimile machine.
FIGS. 5A and 5B are side views showing a configuration of a main part of the facsimile machine, wherein FIG. 5A shows a detached state, and FIG.
FIG. 6 is a perspective view showing a configuration of a main part of an apparatus main body in the facsimile apparatus.
FIG. 7 is a side view showing a configuration of a main part of the apparatus main body in the facsimile apparatus.
FIG. 8 is a perspective view illustrating a configuration of a main part of a conventional image reading apparatus.
FIG. 9 is a perspective view illustrating a configuration of a main part of a conventional image reading apparatus.
FIG. 10 is a side view showing a configuration of a main part of a conventional image reading apparatus.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 concave connector 2 conductive metal part 3 guide groove 4 guide 5 holding claw 6 convex connector 7 leaf spring 8 release button 9 lever 10 roller shaft 11 coil spring 12 ground wire

Claims (3)

In an image reading apparatus provided with a hand scanner detachably provided to the apparatus main body, an urging means for urging the hand scanner in a discharge direction with respect to the apparatus main body;
Holding means for holding the hand scanner in a mounted state with respect to the apparatus main body against the urging by the urging means;
Release means for releasing the holding by the holding means,
An image reading apparatus according to claim 1, wherein said urging means is constituted by a conductive member connected to a ground. 2. An image reading apparatus according to claim 1, wherein said urging means is arranged near a connector for electrically connecting the hand scanner and the apparatus main body. The holding means comprises a rotatable holding claw having a projection, and a guide groove having a locking portion with which the projection of the holding claw is engaged.
3. The image reading device according to claim 1, wherein the release unit is configured by a lever that rotates the holding claw.

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