JP2016039159A - Cover opening/closing device and image recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover opening/closing device which does not allow a cover and a housing to be separated and is easily recovered to an original state even when an excessive load is applied to the cover.SOLUTION: A cover opening/closing device 20 includes: a housing 10; a cover 22 which covers a part of the housing 10 and may open and close relative to the housing 10; and a connection member 40 which connects the housing 10 with the cover 22. The connection member 40 includes: a first connection part 41 connected with the housing 10; and a second connection part 43 connected with the cover 22. The second connection part 43 may change a coupling state while keeping the cover 22 and the connection member 40 connecting with each other.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cover opening / closing device and an image recording apparatus including the cover opening / closing device.

  2. Description of the Related Art Conventionally, a cover opening / closing device that covers an upper portion of a housing has been known in order to perform maintenance inside the device. For example, an image recording apparatus such as an ink jet printer has a cover opening / closing device for exchanging ink cartridges and removing jammed recording media. The scanner is provided with a cover opening / closing device for shielding external light when holding the original or reading the original. These consumer devices incorporate a mechanism that prevents the cover from being easily damaged when an excessive load is applied to the cover. Patent Document 1 discloses a printing apparatus including a cover opening / closing mechanism that allows a cover to be easily removed when a load is further applied in the opening direction when the cover is in an open position.

JP 2010-238851 A

  The cover opening / closing device described in Patent Document 1 is a mechanism in which a notch portion is provided in a housing-side bearing into which a shaft portion of a connecting portion (hinge) provided in the cover is fitted, and the cover is easily detached from the bearing portion. It has. As a result, the cover can be prevented from being damaged when an excessive load is applied to the cover. However, the user has to refit the shaft portion of the removed cover to the bearing portion on the housing side, and labor is required for returning the cover to the original joining position.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A cover opening / closing device according to this application example includes a housing, a cover that covers a part of the housing and that can be opened and closed with respect to the housing, and a connecting member that connects the housing and the cover. And the connecting member includes a first connecting part that is connected to the housing and a second connecting part that is connected to the cover. The coupling state can be changed while the cover and the coupling member are coupled to each other.

  According to this application example, the cover of the cover opening / closing device is coupled to the housing via the coupling member. Specifically, the cover is connected to the connecting member by a second connecting portion provided in the connecting member, and the housing is connected to the connecting member by a first connecting portion provided in the connecting member. In the cover opening and closing device, when an excessive load is applied in the opening direction of the cover, the coupling state of the second connecting portion that connects the cover and the connecting member is changed, and an excessive load is applied to the first connecting portion. It has a mechanism for mitigating transmission. Thereby, it can prevent that a connection member remove | deviates by a 1st connection part, and the cover and housing | casing which are connected with the connection member isolate | separate. In addition, even when the coupling state of the second coupling part is changed, the second coupling part maintains the coupling between the cover and the coupling member, so that the user can change the coupling state of the second coupling part before the change. The cover can be easily returned to the original joining position by simply returning it. Therefore, even if an excessive load is applied to the cover, it is possible to provide a cover opening / closing device that can easily return the cover to the original joining position without separating the cover and the housing.

  Application Example 2 In the cover opening / closing apparatus according to the application example described above, when the opening / closing angle of the cover with respect to the casing is equal to or less than a predetermined angle, the cover rotates about the first connecting portion, and the casing When the opening / closing angle of the cover with respect to is larger than the predetermined angle, the cover preferably rotates about the second connecting portion.

  According to this application example, when the cover opening / closing apparatus opens the cover from the casing in a state where the cover is closed, the cover and the casing are within a range in which the angle formed by the casing and the cover is equal to or less than a predetermined angle. Rotates around the first connecting portion of the connecting member. In a range where the angle formed by the housing and the cover is larger than the predetermined angle, the cover and the housing rotate around the second connecting portion of the connecting member. For example, when the cover and the housing are connected only by the first connecting portion, and the movable range of the first connecting portion is a predetermined angle formed by the housing and the cover, the cover exceeds the predetermined angle from the housing. If a force for opening is applied, an excessive load is applied to the first connecting portion. The apparatus of this application example includes a second connecting portion that connects the connecting member and the cover. When the cover is opened larger than a predetermined angle, the cover rotates about the second connecting portion. It is possible to prevent an excessive load from being applied to the part.

  Application Example 3 In the cover opening and closing device according to the application example, the connection member further includes a connection part that joins the cover and the connection member in a region different from the second connection part, When the opening / closing angle of the cover is larger than the predetermined angle, the cover is preferably detached from the coupling member at the connection portion.

  According to this application example, the cover and the connecting member are connected by the second connecting portion and the connecting portion. When an excessive force to open the cover beyond a predetermined angle is applied to the cover, the cover is detached from the connection member at the connection portion, and the connection state between the cover and the connection member at the second connection portion where the connection is maintained It is possible to escape excessive power by changing.

  Application Example 4 In the cover opening / closing device described in the application example, it is preferable that the connection portion has an engagement shape.

  According to this application example, since the connecting portion connects the cover and the connecting member in an engagement shape, an excessive force is applied to the cover to open beyond a predetermined angle, and the cover is connected at the connecting portion. Even if it is detached from the member, it can be easily returned to the original joining position. Further, when the opening / closing angle of the cover with respect to the housing is equal to or smaller than a predetermined angle, it is possible to prevent the coupling state between the cover and the connecting member at the second connecting portion from being changed unnecessarily.

  Application Example 5 In the cover opening / closing device described in the application example, it is preferable that the connection portion is a hook.

  According to this application example, the cover is connected to the coupling member by the hook at the connection portion. The hook can attach and detach the cover and the connecting member at the connection portion. Thereby, even when an excessive force is applied to the cover and the connection between the cover and the connecting member at the connecting portion is disconnected, and the coupling state between the cover and the connecting member at the second connecting portion is changed, the cover can be easily removed. The original joining position can be returned.

  Application Example 6 In the cover opening / closing device described in the application example, it is preferable that the connection portion has a ball shape.

  According to this application example, the cover is connected to the coupling member in a ball shape at the connection portion. The cover and the connecting member can be attached and detached at the connection portion by providing the ball and the concave portion that follows the outer shape of the ball. Thereby, even when an excessive force is applied to the cover and the connection between the cover and the connecting member at the connecting portion is disconnected, and the coupling state between the cover and the connecting member at the second connecting portion is changed, the cover can be easily removed. The original joining position can be returned.

  Application Example 7 In the cover opening / closing apparatus according to the application example described above, the connection portion includes a magnet in at least one of the connection member and the cover at a joint position between the connection member and the cover. Are preferred.

  According to this application example, the cover is connected to the coupling member and the magnet at the connection portion. The magnet can attach and detach the cover and the connecting member at the connection portion. Thereby, even when an excessive force is applied to the cover and the connection between the cover and the connecting member at the connecting portion is disconnected, and the coupling state between the cover and the connecting member at the second connecting portion is changed, the cover can be easily removed. The original joining position can be returned.

  Application Example 8 In the cover opening / closing apparatus according to the application example described above, it is preferable that the connection portion does not come off when the load is less than a predetermined amount.

  According to this application example, even if a load is applied to the cover, the connection between the cover and the connecting member at the connecting portion is not removed if the load applied to the connecting portion is less than a predetermined load amount. Thereby, it can prevent that a cover and a connection member remove | deviate unnecessarily in a connection part, and the connection state of the cover and a connection member in a 2nd connection part is changed.

  Application Example 9 An image recording apparatus according to this application example includes the cover opening / closing device according to the application example described above, and an image recording unit that records an image on a recording medium provided in the housing. It is characterized by this.

  According to this application example, since the image recording unit is provided inside the housing of the cover opening / closing device, the cover and the housing are protected even if an excessive load is applied to the cover when performing maintenance inside the device. Thus, it is possible to provide an image recording apparatus including a cover opening / closing device that can easily return the cover to the original joining position without being separated.

  Application Example 10 In the image recording apparatus according to the application example, the image recording unit includes an ink tank that stores ink, and a recording head that discharges the ink onto the recording medium and records an image on the recording medium. And are preferably provided.

  According to this application example, an image recording unit including an ink tank and a recording head that discharges ink to a recording medium is provided inside the housing of the cover opening / closing device. An inkjet image recording apparatus having a cover opening / closing device that can easily return the cover to the original joining position without separating the cover and the housing even when an excessive load is applied to the cover. Can be provided.

1 is a perspective view illustrating a schematic configuration of an image recording apparatus including an openable cover according to an embodiment. The perspective view which shows schematic structure of a cover opening / closing apparatus. The perspective view which expands and shows the principal part of a cover opening / closing apparatus. Sectional drawing in the AA in FIG. Sectional drawing of the switchgear which concerns on the modification 1. FIG. Sectional drawing of the switchgear concerning the modification 2.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scale of each layer and each member is different from the actual scale so that each layer and each member can be recognized.
In each figure, for convenience of explanation, the X axis, the Y axis, and the Z axis are shown as three axes orthogonal to each other, the tip side of the arrow showing the axial direction is “+ side”, and the base end side is shown. “− Side”. In the following, the direction parallel to the X axis is the “X axis direction” or “main scanning direction”, the direction parallel to the Y axis is “Y axis direction” or “sub-scanning direction”, and the direction parallel to the Z axis is It is called “Z-axis direction”. Further, the side surface viewed from the + Y-axis side is referred to as “front”, and the opposite side is referred to as “back”.

(Embodiment)
<Schematic configuration of image recording apparatus>
FIG. 1 is a perspective view illustrating a schematic configuration of an image recording apparatus 1 including a cover opening / closing device 20 according to the embodiment.
First, a schematic configuration of the image recording apparatus 1 according to the embodiment will be described with reference to FIG.

  FIG. 1 shows an image recording apparatus 1 as an example of an apparatus provided with a cover opening / closing device 20. The image recording apparatus 1 includes a substantially rectangular parallelepiped casing 10 extending along the X-axis direction, and a cover 22 that covers a part of the casing 10 and can be opened and closed with respect to the casing 10. An opening / closing device 20 is provided. On the front side of the housing 10, an operation panel 16 having a plurality of operation buttons, a cassette 12 for supplying a recording medium, and a discharge port 14 for discharging the recording medium are provided.

  The cassette 12 has a structure that can be pulled out to the front side (+ Y-axis direction), and can accommodate a plurality of recording media (not shown) in a stacked manner. A transport mechanism (not shown) for transporting the recording medium fed from the cassette 12 to the discharge port 14 along the transport path is provided in the housing 10.

  The image recording apparatus 1 includes an image recording unit 30 that performs recording on a recording medium inside the housing 10. The image recording unit 30 includes an ink tank 34 that stores ink, and a recording head 32 that discharges ink onto a recording medium and records an image on the recording medium. Specifically, at a position facing the recording medium conveyance path in the image recording unit 30 in the housing 10, the carriage 31 intersects the sub-scanning direction (+ Y-axis direction) in which the recording medium is conveyed (in the main scanning direction). (± X-axis direction) is provided so as to be reciprocally movable.

  An ink tank 34 that stores ink such as cyan, magenta, yellow, and black is provided on the upper portion (+ Z-axis side) of the carriage 31, and ink is disposed on the lower surface of the carriage (-Z-axis side surface). A recording head 32 having nozzles for discharging ink supplied from the tank 34 toward the recording medium into ink droplets is provided.

  When the user operates the operation panel 16, the recording medium is conveyed from the cassette 12 to the image recording unit 30. In the image recording unit 30, the recording head 32 reciprocates in the main scanning direction together with the carriage 31 while ejecting ink from the nozzles toward the recording medium, and the recording medium is conveyed in the sub-scanning direction. Etc. are recorded. The recording medium is conveyed to the discharge port 14, and the recording medium on which an image or the like is recorded is discharged from the discharge port 14.

<Configuration of cover opening / closing device>
FIG. 2 is a perspective view showing a schematic configuration of the cover opening / closing device 20. FIG. 3 is an enlarged perspective view showing a main part of the cover opening / closing device 20. FIG. 4 is a cross-sectional view of the cover opening / closing device 20. FIG. 4B is a cross-sectional view taken along line AA in a state where the cover 22 shown in FIG. 2 is opened. FIG. 4A is a cross-sectional view showing a state in which the cover is closed. FIG. 4C is a cross-sectional view of a state where the coupling state between the cover 22 and the connecting member 40 is changed.

  As shown in FIGS. 2 and 3, the cover opening / closing device 20 includes a housing 10, a cover 22 that covers a part of the housing 10, and that can be opened and closed with respect to the housing 10, and the housing 10 and the cover 22. And a connecting member 40 to be connected. The cover 22 is connected to the housing 10 via a pair of connecting members 40 arranged in the X-axis direction on the back side of the housing 10.

  As illustrated in FIGS. 3 and 4, the connecting member 40 includes a first connecting portion 41 that is connected to the housing 10 and a second connecting portion 43 that is connected to the cover 22. In a cross-sectional (side view) view from the + X-axis direction, the connecting member 40 has a semicircular semicircular portion 46 and a rectangular portion 48 that extends from one end of the semicircular portion 46 in the normal direction of the semicircular arc. And has a P-shape. A cavity that prevents interference with the housing 10 when the connecting member 40 rotates around the first connecting portion 41 is provided on the rectangular portion 48 side of the semicircular portion 46. In addition, the shape and connection position of the connection member 40 are examples, and are not limited thereto.

  The first connecting portion 41 includes a support shaft 42 projecting in the ± X-axis direction from the center of the circle of the semicircular portion 46 and a support shaft 42 provided inside the housing 10 so as to be rotatable. And a support portion 18. Thereby, the connection member 40 is connected with the housing | casing 10 so that rotation is possible about the 1st connection part 41 as a fulcrum. The second connecting portion 43 rotatably supports a support shaft 44 projecting in the ± X axis direction from one end side of the semicircular portion 46 and a support shaft 44 provided on the cover 22 side. And a support portion 24. Thereby, the cover 22 is connected with the connection member 40 so that rotation is possible about the 2nd connection part 43 as a fulcrum. The 1st connection part 41 and the 2nd connection part 43 function as what is called a hinge.

  As shown in FIG. 4, the connecting member 40 further includes a connecting portion 25 that joins the cover 22 and the connecting member 40 in a region different from the second connecting portion 43. The connecting portion 25 has an engagement shape that engages the cover 22 and the connecting member 40. Specifically, the connecting portion 25 is a so-called hook 49, and a hooked portion 49 that locks the hook 49 provided at the tip of the rectangular portion 48 of the connecting member 40 and the hook 49 provided on the cover 22 side. 26. The connecting portion 25 that locks the hook 49 and the locked portion 26 is locked so that the cover 22 is not detached from the connecting member 40 when the load is less than a predetermined load.

<Opening and closing the cover>
When the opening / closing angle θ of the cover 22 with respect to the housing 10 is equal to or smaller than a predetermined angle, the cover 22 rotates about the first connecting portion 41. Specifically, the range of the opening / closing angle θ equal to or smaller than the predetermined angle is a range in which the first connecting portion 41 can be rotated. Therefore, for the maintenance of the image recording apparatus 1 by the user, the cover 22 extends from the closed state shown in FIG. 4A to the position shown in FIG. 4B where the opening / closing angle θ is a predetermined angle. When the cover is opened, the load applied to the connecting portion 25 becomes less than a predetermined load amount, and the cover 22 is connected to the connecting member 40 by the second connecting portion 43 and the connecting portion 25. As a result, the cover 22 rotates about the support shaft 42 of the first connecting portion 41.

  When the opening / closing angle θ of the cover 22 with respect to the housing 10 is larger than a predetermined angle, the cover 22 is detached from the connecting member 40 at the connection portion 25. Specifically, when the opening / closing angle θ of the cover 22 with respect to the housing 10 is equal to or less than a predetermined angle, the cover 22 is connected to the connecting member 40 by the second connecting portion 43 and the connecting portion 25. When an excessive load is further applied in the opening direction of the cover 22 (−Y-axis direction) from the state shown in FIG. 4B, which is the rotation limit of the first connecting portion 41, the first connecting portion 41 rotates. Since it does not move, a load of a predetermined load amount or more is applied to the connecting portion 25, the hook 49 of the connecting portion 25 and the locked portion 26 are separated from each other, and the cover 22 is detached from the connecting member 40 at the connecting portion 25.

  On the other hand, the coupling state of the second coupling part 43 can be changed while the cover 22 and the coupling member 40 are coupled. Since the cover 22 is rotatably connected to the connecting member 40 at the second connecting portion 43, the cover 22 rotates around the support shaft 44 of the second connecting portion 43 along the opening direction in which a load is applied. Move. As a result, when an excessive load is applied to the cover 22, the load transmitted to the first connecting portion 41 that connects the connecting member 40 and the housing 10 is alleviated, so that the cover 22 is connected to the connecting member 40. It is possible to prevent the cover 22 and the housing 10 from being separated. Further, even if the coupling state of the second coupling part 43 is changed, the second coupling part 43 maintains the coupling between the cover 22 and the coupling member 40, so that the user can engage with the hook 49 of the coupling part 25. By re-engagement with the part 26, it can be easily returned to the original joining position.

As described above, according to the cover opening / closing device 20 and the image recording apparatus 1 according to the present embodiment, the following effects can be obtained.
The cover opening / closing device 20 includes a housing 10, a cover 22, a connecting member 40, and a connecting portion 25, and the connecting member 40 is a first connecting portion 41 that is connected to the housing 10 and a second connecting portion 43 that is connected to the cover 22. have. The cover 22 is connected to the connecting member 40 connected to the housing 10 via the first connecting portion 41 via the second connecting portion 43, and the cover 22 is a hook provided on the connecting portion 25. 49 and the locked portion 26 are locked to the connecting member 40. When an excessive load is applied in the opening direction of the cover 22, the cover opening / closing device 20 rotates the cover 22 around the second connecting portion 43 by separating the connecting member 40 and the cover 22 at the connecting portion 25. Thus, the coupling state of the cover 22 and the connecting member 40 in the second connecting portion 43 is changed. Thereby, since the load transmitted to the 1st connection part 41 is relieved, the connection of the connection member 40 and the housing | casing 10 remove | deviates by the 1st connection part 41, and the cover 22 and the housing | casing 10 isolate | separate. Can be prevented.

  Further, even when the connection between the cover 22 and the connecting member 40 in the connecting portion 25 is released and the coupling state between the cover 22 and the connecting member 40 in the second connecting portion 43 is changed, the hook 49 of the connecting portion 25 By locking the locked portion 26, the cover 22 can be easily returned to the original joining position. Accordingly, there is provided a cover opening / closing device 20 that can easily return the cover 22 to the original joining position without separating the cover 22 and the housing 10 even when an excessive load is applied to the cover 22. be able to.

  Further, in the image recording apparatus 1 provided with the cover opening / closing device 20, even when an excessive load is applied to the cover 22 during maintenance inside the device, the cover 22 and the housing 10 are not separated. The image recording apparatus 1 that can easily return the cover 22 to the original joining position can be provided.

  In addition, this invention is not limited to embodiment mentioned above, A various change, improvement, etc. can be added to embodiment. A modification will be described below.

(Modification 1)
In the cover opening / closing device 120 according to the first modification, the shape of the connecting portion 125 is different from that of the embodiment.
FIG. 5 is a cross-sectional view of the cover opening / closing device 120 according to the first modification. FIG. 5A is a cross-sectional view taken along line AA in a state where the cover 122 shown in FIG. 2 is opened. FIG. 5B is a cross-sectional view of a state where the coupling state of the cover 122 and the connecting member 140 is changed.
As shown in FIG. 5, the cover opening and closing device 120 covers the housing 10, a cover 122 that covers a part of the housing 10, and that can be opened and closed with respect to the housing 10, and a connecting member that connects the housing 10 and the cover 122. 140. The cover 122 is connected to the housing 10 via a pair of connecting members 40 arranged in the X-axis direction on the back side of the housing 10. The connecting member 140 is formed by a semicircular portion 46 and a rectangular portion 148.

  The connecting member 140 further includes a connecting portion 125 that connects the cover 122 and the connecting member 140 in a region different from the second connecting portion 43. The connecting portion 125 has a ball shape that engages the cover 122 and the connecting member 140. Specifically, the connecting portion 125 is a so-called ball catch, and has a concave shape that follows the outer shape of the ball 149 embedded in the distal end portion of the rectangular portion 148 of the connecting member 140 and the ball 149 provided on the cover 122 side. It is comprised with the to-be-latched part 126. FIG. The connecting portion 125 that locks the ball 149 and the locked portion 126 is locked so that the cover 122 does not come off the connecting member 140 when the load is less than a predetermined load.

  The cover 122 is connected to the connecting member 140 by the second connecting portion 43 and the connecting portion 125. When an excessive load is applied to the cover 122 and a load of a predetermined load amount or more is applied to the connecting portion 125, the cover 122 is detached from the connecting member 140 at the connecting portion 125. The cover opening / closing device 120 rotates the cover 122 around the second connecting portion 43 that maintains the connection between the cover 122 and the connecting member 140, so that the cover 122 and the connecting member 140 in the second connecting portion 43 Change the binding state of.

As described above, according to the cover opening / closing device 120 according to the first modification, in addition to the effects in the above-described embodiment, the following effects can be obtained.
The cover opening / closing device 120 includes a housing 10, a cover 122, a connecting member 140, and a connecting portion 125. Even when an excessive load is applied to the cover 122 and the engagement between the cover 122 and the connecting member 140 is released at the connecting portion 125 and the coupling state between the cover 122 and the connecting member 140 at the second connecting portion 43 is changed, the connection is maintained. The cover 122 can be easily returned to the original joining position by locking the ball 149 of the portion 125 and the locked portion 126. Accordingly, there is provided a cover opening / closing device 120 capable of easily returning the cover 122 to the original joining position without separating the cover 122 and the housing 10 even when an excessive load is applied to the cover 122. be able to.

(Modification 2)
In the cover opening / closing device 220 according to Modification 2, the shape of the connecting portion 225 is different from that of the embodiment.
FIG. 6 is a cross-sectional view of the cover opening / closing device 220 according to the second modification. FIG. 6A is a cross-sectional view taken along line AA in a state where the cover 222 shown in FIG. 2 is opened. FIG. 6B is a cross-sectional view of a state where the coupling state of the cover 222 and the connecting member 240 is changed.
As shown in FIG. 6, the cover opening / closing device 220 covers the casing 10, a cover 222 that covers a part of the casing 10 and that can be opened / closed with respect to the casing 10, and a connection that connects the casing 10 and the cover 222. And a member 240. The cover 222 is connected to the housing 10 via a pair of connecting members 240 arranged in the X-axis direction on the back side of the housing 10 (see FIG. 2). The connecting member 240 is formed by a semicircular portion 46 and a rectangular portion 248.

  The connecting member 240 further includes a connecting portion 225 that connects the cover 222 and the connecting member 240 in a region different from the second connecting portion 43. The connecting portion 225 includes a magnet on at least one of the connecting member 240 and the cover 222 at the joint position between the connecting member 240 and the cover 222. In the present modification, a magnet 249 as a rectangular magnetic body is provided at the joining position of the connecting member 240, and a rectangular magnet 226 is provided at the joining position of the cover 222. The magnet 249 and the magnet 226 have a polarity in which a pulling force (attractive force) acts. Thereby, the connection part 225 is locked so that the cover 222 is not detached from the connecting member 240 when the load is less than a predetermined load.

  The cover 222 is connected to the connecting member 240 by the second connecting portion 43 and the connecting portion 225. When an excessive load is applied to the cover 222 and a load of a predetermined load amount or more is applied to the connection portion 225, the cover 222 is detached from the connecting member 240 at the connection portion 225. The cover opening / closing device 220 rotates the cover 222 around the second connecting portion 43 that maintains the connection between the cover 222 and the connecting member 240, so that the cover 222 and the connecting member 240 in the second connecting portion 43 Change the binding state of. In addition, in this modification, although demonstrated that the magnet was provided in both the connection member 240 and the cover 222, it is not limited to this. One of the connecting member 240 and the cover 222 may be formed of a material containing a magnetic body, and a magnet may be provided at the other connection position.

As described above, according to the cover opening / closing device 220 according to the second modification, in addition to the effects in the above-described embodiment, the following effects can be obtained.
The cover opening / closing device 220 includes a housing 10, a cover 222, a connecting member 240, and a connection portion 225. Even when an excessive load is applied to the cover 222 and the engagement between the cover 222 and the connecting member 240 is released at the connecting portion 225 and the coupling state between the cover 222 and the connecting member 240 at the second connecting portion 43 is changed, the connection is maintained. The cover 222 can be easily returned to the original joining position by the attractive force of the magnets 226 and 249 provided on the cover 222 and the connecting member 240 in the portion. Accordingly, there is provided a cover opening / closing device 220 capable of easily returning the cover 222 to the original joining position without separating the cover 222 and the housing 10 even when an excessive load is applied to the cover 222. be able to.

  The magnet may be an electromagnet, and the magnetic force of the magnet can be changed by this configuration. Therefore, it is possible to provide the cover opening / closing device 220 that can be easily returned to the original joining position by increasing the magnetic force after the engagement between the cover 222 and the connecting member 240 is released. Further, the load can be adjusted when the cover 222 and the connecting member 240 are unlocked.

  DESCRIPTION OF SYMBOLS 1 ... Image recording device, 10 ... Housing | casing, 12 ... Cassette, 14 ... Ejection port, 16 ... Operation panel, 18, 24 ... Support part, 20, 120, 220 ... Cover opening / closing device, 22, 122, 222 ... Cover, 25, 125, 225 ... connection part, 26 ... locked part, 30 ... image recording part, 31 ... carriage, 32 ... recording head, 34 ... ink tank, 40, 140, 240 ... connection member, 41 ... first connection Part, 42, 44 ... support shaft, 43 ... second connecting part, 49 ... hook, 126 ... locked part, 149 ... ball, 226, 249 ... magnet.

Claims (10)

A housing,
A cover that covers a part of the housing and is openable and closable with respect to the housing;
A connecting member for connecting the housing and the cover;
A cover opening and closing device comprising:
The connecting member includes a first connecting portion that is connected to the housing, and a second connecting portion that is connected to the cover.
The cover opening and closing device characterized in that the second connecting portion can change a coupling state while the cover and the connecting member are connected. The cover opening and closing device according to claim 1,
When the opening / closing angle of the cover with respect to the housing is equal to or less than a predetermined angle, the cover rotates around the first connecting portion,
The cover opening / closing apparatus, wherein the cover rotates about the second connecting portion when an opening / closing angle of the cover with respect to the housing is larger than the predetermined angle. The cover opening and closing device according to claim 2,
The connecting member further includes a connecting portion that joins the cover and the connecting member in a region different from the second connecting portion,
The cover opening / closing apparatus, wherein when the opening / closing angle of the cover with respect to the housing is larger than the predetermined angle, the cover is detached from the connecting member at the connection portion. The cover opening and closing device according to claim 3,
The cover opening and closing device characterized in that the connection portion has an engagement shape. The cover opening / closing device according to claim 3 or 4,
The cover opening and closing device, wherein the connecting portion is a hook. The cover opening / closing device according to claim 3 or 4,
The cover opening and closing device characterized in that the connection portion has a ball shape. The cover opening / closing device according to any one of claims 3 to 6,
The connection opening / closing device, wherein at least one of the connection member and the cover is provided with a magnet at a joint position between the connection member and the cover. The cover opening / closing device according to any one of claims 3 to 7,
The cover opening and closing device characterized in that the connection portion does not come off when less than a predetermined load amount. The cover opening and closing device according to any one of claims 1 to 8,
An image recording unit for recording an image on a recording medium provided in the housing;
An image recording apparatus characterized by comprising: The image recording apparatus according to claim 9, wherein
The image recording unit includes an ink tank for storing ink;
A recording head that records the image on the recording medium by discharging the ink onto the recording medium;
An image recording apparatus comprising:

Images