CN110198602B - Electronic machine - Google Patents
Electronic machine Download PDFInfo
- Publication number
- CN110198602B CN110198602B CN201811509323.8A CN201811509323A CN110198602B CN 110198602 B CN110198602 B CN 110198602B CN 201811509323 A CN201811509323 A CN 201811509323A CN 110198602 B CN110198602 B CN 110198602B
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- Prior art keywords
- cover
- shaft
- pair
- stopper
- shaft portion
- Prior art date
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/03—Covers
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Pivots And Pivotal Connections (AREA)
- Programmable Controllers (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention provides an electronic machine which can make a hinge mechanism have a small structure, thereby making a cover thin. The electronic apparatus of the present invention includes a housing (2), and a cover (30) rotatably assembled to the housing (2). The housing (2) includes a shaft (23a), the shaft (23a) defines a rotation axis (O) of the cover (30), and the cover (30) has a bearing recess (31a) that accommodates the shaft (23a) and is open to the outside on a surface (30a) of the cover (30). The anti-drop mechanism for preventing the cover (30) from dropping from the frame (2) is composed of at least a shaft portion (23a), an opposite wall portion of the frame (2) opposite to the shaft portion (23a), and a stopper portion of a bearing portion (31) sandwiched by the shaft portion (23a) and the opposite wall portion.
Description
Technical Field
The present invention relates to an electronic apparatus in which a cover (cover) is rotatably attached to a housing.
Background
A building block Programmable Logic Controller (PLC) as an example of an electronic device is configured by combining a plurality of unit cells so as to be connected to each other. For example, a remote terminal device of a PLC is configured by connecting one or more Input/Output (I/O) units to one communication unit, and the one or more I/O units can communicate with the communication unit via a serial bus line (serial bus line) and a unidirectional communication line, respectively.
A housing of a PLC unit cell may be provided with a lid that can be opened and closed as needed. For example, japanese patent laid-open No. 2007-66085 (patent document 1) discloses an I/O unit in which a lid is openably and closably provided on a housing. In the I/O unit disclosed in patent document 1, hinge projections are provided at predetermined positions at the upper and lower ends of the lid, and a rail-shaped recessed portion for rotatably holding the hinge projections is provided in the housing.
[ Prior art documents ]
[ patent document ]
[ patent document 1] Japanese patent laid-open No. 2007-and 66085
Disclosure of Invention
[ problems to be solved by the invention ]
In general, electronic devices are strongly required to be miniaturized. The unit cell of the PLC is a relatively small electronic device, but further miniaturization is strongly demanded. Therefore, it is sometimes necessary to achieve thinning of the cover.
In particular, in order to reduce the thickness of the cover, the structure of the compression space (space) is a hinge mechanism for rotatably mounting the cover to the housing. In general, the hinge mechanism is constituted by a shaft portion provided in the housing and a bearing hole provided in the cover, but the bearing hole needs to be formed so as to surround the shaft portion to prevent the cover from coming off the housing, and as a result, a large space is required to a considerable extent. Therefore, the space for providing the bearing hole is a factor that hinders the thinning of the cover.
In view of the above, it is an object of the present disclosure to provide an electronic device in which a hinge mechanism can be configured to be small-sized, and a cover can be thinned.
[ means for solving problems ]
An electronic apparatus according to an aspect of the present disclosure includes a housing and a cover rotatably attached to the housing. The cover includes an inner surface disposed on the frame side in a closed state, and a surface located on a side opposite to the inner surface in a thickness direction of the cover. The frame includes a shaft portion that defines a rotation axis of the cover, and the rotation axis is disposed so as to extend in a direction orthogonal to a thickness direction of the cover. The cover includes a bearing portion pivotally supporting the shaft portion, and the bearing portion has a bearing recess portion that accommodates the shaft portion and is open to the outside in the surface. In the electronic apparatus according to the present disclosure, the drop preventing mechanism for preventing the lid from dropping off from the housing is constituted by at least a stopper mechanism including the shaft portion, an opposing wall portion that is a portion of the wall portion of the housing that opposes the shaft portion, and a stopper portion that is a portion of the bearing portion that defines the bearing recess and is sandwiched between the shaft portion and the opposing wall portion.
With this configuration, the cover is prevented from falling off the housing, and the hinge mechanism including the shaft portion provided in the housing and the bearing portion provided in the cover can be downsized. That is, by providing the stopper mechanism having the above-described structure, the bearing recess defined by the bearing portion and accommodating the shaft portion can be opened on the surface of the cover, and therefore, there is no need to provide the bearing portion on the surface side of the cover. Accordingly, the hinge mechanism can be miniaturized accordingly, and as a result, the cover can be thinned.
In the electronic apparatus according to the aspect of the present disclosure, the drop preventing mechanism may further include an additional stopper mechanism that prevents the lid from dropping in a state where the stopper portion is dropped from between the shaft portion and the opposing wall portion due to rotation of the lid.
Thus, by providing not only the stopper mechanism but also an additional stopper mechanism, the cover can be prevented from falling off the housing, and the rotation range of the cover can be enlarged. Therefore, the cover can be set to a more convenient cover with a wider rotation range.
In the electronic device according to the above aspect of the present disclosure, the additional stopper mechanism may be configured by an auxiliary shaft portion provided in the housing and an auxiliary stopper portion provided in the cover, in addition to the shaft portion and the stopper portion. In this case, it is preferable that the auxiliary stopper portion is arranged in a direction opposite to the direction in which the stopper portion is arranged when viewed from the auxiliary shaft portion, so that the shaft portion and the auxiliary shaft portion are sandwiched between the stopper portion and the auxiliary stopper portion in the thickness direction of the cover.
With this configuration, the additional stopper mechanism can be easily configured simply by providing the auxiliary shaft portion in the housing and the auxiliary stopper portion in the cover. Therefore, a simple structure can be maintained, and the rotation range of the cover can be enlarged.
In the electronic device according to the above aspect of the present disclosure, it is preferable that a mounting hole portion for inserting the shaft portion into the bearing recess portion when the cover is assembled to the housing is provided in a wall surface of the cover at a portion adjacent to the stopper portion in a direction in which the rotation shaft extends.
With this configuration, since the mounting hole is present adjacent to the stopper, the stopper is thin, and the cover including the stopper can be easily elastically deformed. Therefore, when the cover is assembled to the housing, the shaft portion provided in the housing can be easily inserted into the bearing recess provided in the cover.
In the electronic device according to the above aspect of the present disclosure, the light-emitting portion may be provided in the housing so as to be exposed to the outside, and the cover may be configured to cover the housing including the portion of the light-emitting portion in the closed state and to expose the housing including the portion of the light-emitting portion in the open state. In this case, the cover may be formed of a translucent member.
With this configuration, the light emitting section can be seen from the outside even when the cover is closed, and therefore, the display section can be provided in the cover. Therefore, an electronic apparatus having excellent space efficiency can be realized.
In the electronic device according to the above aspect of the present disclosure, the pair of shaft portions may be provided in the housing. The lid may be provided with a pair of the bearing portions.
By applying the above-described structure to both of the pair of hinge mechanisms each including the shaft portion and the bearing portion, both of the pair of hinge mechanisms can be downsized, and as a result, the cover as a whole can be thinned.
[ Effect of the invention ]
According to an aspect of the present disclosure, it is possible to provide an electronic apparatus in which a hinge mechanism can be configured to be small-sized, and thus a cover can be thinned.
Drawings
Fig. 1 is a perspective view of a communication unit according to an embodiment in a state where a front cover is closed.
Fig. 2 is a perspective view of the communication unit shown in fig. 1 in a state where a front cover is opened.
Fig. 3 is an exploded perspective view showing an assembly structure of a front cover facing a housing of the communication unit shown in fig. 1.
Fig. 4 is a front view of the communication unit shown in fig. 1 in a state where the front cover is closed.
Fig. 5 is a perspective view of a display operation portion of a front panel of the communication unit shown in fig. 1.
Fig. 6 is a perspective view of a front cover of the communication unit shown in fig. 1.
Fig. 7(a) and 7(B) are schematic cross-sectional views showing a part of the communication unit shown in fig. 1 including a hinge mechanism provided in the front panel and the front cover.
Fig. 8(a) and 8(B) are schematic cross-sectional views of a portion of the communication unit shown in fig. 1 including an additional stopper mechanism provided on the front panel and the front cover.
Fig. 9(a) and 9(B) are schematic cross-sectional views of a portion of the communication unit shown in fig. 1 including a second lock mechanism provided on the front panel and the front cover.
Fig. 10(a) to 10(C) are enlarged cross-sectional views of the regions XA to XC shown in fig. 7(a), 7(B), and 8 (B).
Description of the symbols
1: communication unit
2: frame body
3: display unit
10: body shell
11: concave part for installation
12: light emitting part
13 a: a first operation part
13 b: second operation part
14: media insertion part
20: front panel
21: terminal connection part
22: display operation unit
22 a: major face
22 b: facing wall parts
23: mounting part
23 a: shaft part
24: auxiliary shaft part
25: second stop part
26: first clamping part
30: front cover
30 a: surface of
30 b: inner face
30 c: light projecting part
30 d: decorative part
31: bearing part
31 a: bearing recess
31 b: stopper part
32: auxiliary stop part
33: second locked part
34: first locked part
38: mounting hole
O: rotating shaft
Detailed Description
Hereinafter, embodiments will be described in detail with reference to the drawings. The embodiments described below exemplify a case where the present disclosure is applied to a communication unit of a remote terminal device of a PLC as an electronic apparatus. In the embodiments described below, the same or common components are denoted by the same reference numerals in the drawings, and the description thereof will not be repeated.
General Structure
Fig. 1 is a perspective view of a communication unit according to an embodiment in a state where a front cover is closed, and fig. 2 is a perspective view of the communication unit shown in fig. 1 in a state where the front cover is opened. Fig. 3 is an exploded perspective view showing an assembly structure of a front cover facing a housing of the communication unit shown in fig. 1, and fig. 4 is a front view of the communication unit shown in fig. 1 in a closed state. First, the overall configuration of the communication unit 1 according to the present embodiment will be described with reference to fig. 1 to 4.
As shown in fig. 1 and 2, the communication unit 1 has a substantially rectangular parallelepiped shape and includes a housing 2 in which various electronic components are housed. The frame 2 includes a box-shaped main body case 10 and a front panel 20 fixed to the main body case 10 so as to cover a front surface of the main body case 10.
Here, the X axis, the Y axis, and the Z axis are used for the front-back direction of the frame 2, the left-right direction of the frame 2, and the up-down direction of the frame 2, respectively, and in the following description, these X axis, Y axis, and Z axis are used as necessary. Further, directions along the X axis, i.e., rearward and forward directions, are defined as an X1 direction and an X2 direction, respectively, shown in the drawing, directions along the Y axis, i.e., rightward and leftward directions, are defined as a Y1 direction and a Y2 direction, respectively, shown in the drawing, and directions along the Z axis, i.e., upward and downward directions, are defined as a Z1 direction and a Z2 direction, respectively, shown in the drawing.
A recess 11 for installation is provided on the back surface of the main body case 10. The installation recess 11 is a portion for accommodating a german industrial standard (Deutsche industry norman, DIN) rail when the communication unit 1 is fixed to the DIN rail, and a fixing member for fixing the communication unit 1 is provided in the installation recess 11. Although not described here, the fixing member is configured to be attachable to and detachable from the DIN rail, and holds the DIN rail in a state where the communication unit 1 is fixed to the DIN rail.
The front panel 20 includes a terminal connection portion 21 and a display operation portion 22. The terminal connection portion 21 is located at the front left of the communication unit 1, and the display operation portion 22 is located at the front right of the communication unit 1. The terminal connection portion 21 is a portion to which a connection terminal of a connection cable (cable) for connecting the communication unit 1 and various external units is connected, and three ports are provided along the vertical direction (i.e., the Z-axis direction) in the communication unit 1 of the present embodiment. The display operation unit 22 is a part for displaying information on the communication unit 1 or receiving an operation by a user.
As shown in fig. 1 and 2, the communication unit 1 includes a front cover 30 in addition to the housing 2 including the main body case 10 and the front panel 20. The front cover 30 is rotatably assembled to the front panel 20 via a hinge mechanism described later so as to cover the display operation portion 22 in the closed state and expose the display operation portion 22 in the open state.
Here, the front cover 30 has a rotation axis O extending in the vertical direction (i.e., the Z-axis direction) at the left front end portion of the display operation portion 22, and is configured to be rotatable in the arrow a direction shown in fig. 2 with the rotation axis O as a rotation center. Thereby, the communication unit 1 can take the closed state of the front cover 30 shown in fig. 1 and the open state of the front cover 30 shown in fig. 2. The structure for assembling the front cover 30 to the front panel 20 will be described in detail later.
As shown in fig. 2, the main surface 22a of the display operation portion 22 covered by the front cover 30 in the closed state is exposed to include the plurality of light emitting portions 12, the first operation portion 13a and the second operation portion 13b, and the medium insertion portion 14. These plurality of light emitting sections 12, first operating section 13a, second operating section 13b, and medium insertion section 14 are mounted on a wiring board housed inside the housing 2, and are exposed to the outside of the housing 2 through a cutout provided in the front cover 30.
The plurality of light emitting units 12 are arranged in a dot array along the vertical direction (i.e., the Z-axis direction). These light emitting units 12 constitute a display unit 3 (see fig. 4) together with a front cover 30 of a portion facing the light emitting units 12 in a closed state, and this display unit 3 is used to notify a user of various information (presence or absence of energization, presence or absence of an error, a communication state with an I/O unit, and the like) of a remote terminal device configured to include the communication unit 1 of the present embodiment.
The first operation unit 13a and the second operation unit 13b are constituted by a Dual In-line Package switch (dip switch) or a push switch (push switch), and are used for various settings of the communication unit 1. The media insertion unit 14 is a slot (slot) for inserting various media such as a Secure Digital card (SD card).
As shown in fig. 1 to 4, the front cover 30 has a thin plate shape. More specifically, the front cover 30 has an elongated thin plate shape having a smaller dimension in the left-right direction (i.e., Y-axis direction) than in the up-down direction (i.e., Z-axis direction) in the closed state. The front cover 30 includes a light-transmitting member, and is preferably made of a resin such as acrylic resin or polycarbonate resin.
The front cover 30 has a front surface 30a and an inner surface 30b (see fig. 3) which are opposed to each other in the X-axis direction in a closed state. The front surface 30a is exposed to the outside in the closed state, and the inner surface 30b is positioned on the housing 2 side (i.e., on the main surface 22a side of the display operation portion 22 of the front panel 20) in the closed state.
The front cover 30 is provided with a light projecting section 30c (see fig. 2) at a portion facing the plurality of light emitting sections 12 in the closed state. The light projector 30c is a portion for passing light emitted from the plurality of light emitters 12. In the present embodiment, the light projecting section 30c is formed in a slit shape extending in the vertical direction (i.e., the Z-axis direction) in accordance with the layout of the plurality of light emitting sections 12.
Thus, the light emitted from the plurality of light emitting units 12 passes through the light projecting unit 30c, and is projected to the outside. That is, the display unit 3 is configured by a light projecting unit 30c provided in the front cover 30.
Here, as shown in fig. 4, in the present embodiment, a decorative portion 30d is formed by providing a decorative layer on the surface of the front cover 30 except for the light projecting portion 30 c. The decorative portion 30d is for shielding the shape of the inner surface 30b of the front cover 30 and the shape of the main surface 22a of the display operation portion 22, which are portions other than the light projecting portion 30c, from the outside, thereby enhancing the design of the communication unit 1. As shown in the drawing, the decorative portion 30d is marked with an index (index) corresponding to each of the plurality of light-emitting portions 12.
As shown in fig. 4, a bearing 31 described later is provided at each of the upper left end and the lower left end of the front cover 30 in the closed state, and a bearing recess 31a provided in each of the pair of bearings 31 is open to the outside on the surface 30a of the front cover 30.
On the other hand, at the upper left end and the lower left end of the display operation portion 22 of the front panel 20, there are mounting portions 23 described later, respectively, and shaft portions 23a provided at the respective mounting portions 23 are exposed to the outside through open portions provided at the pair of bearing recesses 31a of the front cover 30.
These pair of shaft portions 23a provided on the front panel 20 and the pair of bearing recesses 31a provided on the front cover 30 constitute a pair of hinge mechanisms for rotatably assembling the front cover 30 to the front panel 20, and as described in detail below.
The communication unit 1 described above displays the operation state of the communication unit 1 and the like on the display unit 3 in the closed state of the front cover 30, so that the user can see from the outside, and the user can perform various operations on the communication unit 1 in the open state of the front cover 30. The opening and closing operation of the front cover 30 is performed by the user gripping the front cover 30 with a hand and rotating it.
Assembling structure of front cover to front panel
Fig. 5 is a perspective view of a display operation portion of a front panel of the communication unit shown in fig. 1, and fig. 6 is a perspective view of a front cover of the communication unit shown in fig. 1. Next, referring to fig. 5 and 6, the structure of the front cover 30 of the communication unit 1 of the present embodiment assembled to the front panel 20 will be described in detail.
As shown in fig. 5, a pair of mounting portions 23, a pair of auxiliary shaft portions 24, a pair of second locking portions 25, and a pair of first locking portions 26 are provided on the main surface 22a of the display operation portion 22 of the front panel 20, in addition to the plurality of light emitting portions 12, the first operation portion 13a, the second operation portion 13b, and the medium insertion portion 14.
The pair of mounting portions 23 are arranged in the left front portion of the display operation portion 22 along the vertical direction (i.e., the Z-axis direction). The upper end portion of one of the pair of mounting portions 23 provided at the left front portion of the display operation portion 22 has an L-shaped shape in side view that projects forward (i.e., in the X2 direction) from the main surface 22a of the display operation portion 22 and the front end thereof projects further upward (i.e., in the Z1 direction). The other of the pair of mounting portions 23, which is provided at the lower end portion of the left front portion of the display operation portion 22, has an L-shaped side view shape that projects forward (i.e., in the X2 direction) from the main surface 22a of the display operation portion 22 and projects further downward (i.e., in the Z2 direction).
The tip ends of the pair of attachment portions 23 extending in the vertical direction have a substantially cylindrical shape, and the shaft portion 23a is formed by this portion. The shaft portion 23a defines a rotation axis O of the front cover 30, and constitutes a hinge mechanism together with a pair of bearings 31 (see fig. 6 and the like) provided in the front cover 30, which will be described later.
The pair of auxiliary shaft portions 24 are arranged along the vertical direction (i.e., the Z-axis direction) at a position between the pair of mounting portions 23 in the left front portion of the display operation portion 22. Each of the pair of auxiliary shaft portions 24 has a protruding shape that protrudes forward (i.e., in the X2 direction) from the main surface 22a of the display operation portion 22 and the tip thereof protrudes leftward (i.e., in the Y2 direction). These pair of auxiliary shaft portions 24 constitute an additional stopper mechanism mainly together with a pair of auxiliary stoppers 32 (see fig. 6 and the like) provided on the front cover 30, which will be described later.
The pair of second locking portions 25 are arranged along the vertical direction (i.e., the Z-axis direction) at a position between the pair of auxiliary shaft portions 24 in the left front portion of the display operation portion 22. Each of the pair of second locking portions 25 has a protrusion shape protruding forward (i.e., in the X2 direction) from the main surface 22a of the display operation portion 22. These pair of second locking portions 25 constitute a second locking mechanism together with a second to-be-locked portion 33 (see fig. 6 and the like) provided in the front cover 30, which will be described later.
The pair of first locking portions 26 are arranged in the right front portion of the display operation portion 22 along the vertical direction (i.e., the Z-axis direction). Each of the pair of first locking portions 26 has a hook shape protruding forward (i.e., in the X2 direction) from the main surface 22a of the display operation portion 22. These pair of first locking portions 26 constitute a first locking mechanism together with a first to-be-locked portion 34 (see fig. 6 and the like) provided in the front cover 30, which will be described later.
On the other hand, as shown in fig. 6, the front cover 30 is provided with a pair of bearing portions 31, a pair of auxiliary stopper portions 32, a pair of second engaged portions 33, and a pair of first engaged portions 34, in addition to the light projecting portion 30 c.
The pair of bearing portions 31 are disposed at the left end (right end in fig. 6) of the front cover 30 in the closed state so as to face each other in the vertical direction (i.e., the Z-axis direction). Each of the pair of bearing portions 31 is formed of a substantially U-shaped portion defining a bearing recess 31a open on the front surface 30a side of the front cover 30 in a plan view. The pair of bearing recesses 31a are configured to accommodate the shaft portions 23a of the pair of mounting portions 23 provided in the display operation portion 22 of the front panel 20, respectively, and thereby surround the shaft portions 23 a. The pair of bearing portions 31 together with the pair of shaft portions 23a constitute a hinge mechanism.
The pair of auxiliary stoppers 32 are arranged in the vertical direction (i.e., the Z-axis direction) between the pair of bearing portions 31 at the left end of the front cover 30 in the closed state. The pair of auxiliary stoppers 32 are wall portions provided at the left end portion of the front cover 30 in the closed state. The pair of auxiliary stoppers 32 mainly constitute an additional stopper mechanism together with the pair of auxiliary shaft portions 24.
The pair of second engaged portions 33 are arranged along the vertical direction (i.e., the Z-axis direction) at positions between the pair of auxiliary stoppers 32 at the left end portion of the front cover 30 in the closed state. The pair of second engaged portions 33 are formed by a ridge-shaped portion formed by providing a notch at the left end portion of the front cover 30 in the closed state and a concave portion having a groove shape at the top surface of the pair of second engaged portions 33. The pair of second engaged portions 33 constitutes a second locking mechanism together with the pair of second locking portions 25, and the pair of second locking portions 25 are respectively accommodated in the recessed portions of the groove shape provided on the top surfaces of the pair of second engaged portions 33 in the open state of the front cover 30, whereby the front cover 30 can be lightly held.
The pair of first engaged portions 34 are arranged along the vertical direction (i.e., the Z-axis direction) at the right end portion of the front cover 30 in the closed state. The pair of first engaged portions 34 are formed by providing projecting pieces having a predetermined shape at the right end portion of the front cover 30 in the closed state. The pair of first locking portions 34 and the pair of first locking portions 26 together constitute a first locking mechanism, and the front cover 30 can be lightly held by engaging with the pair of first locking portions 26 in the closed state of the front cover 30.
The front panel 20 and the front cover 30 are provided with a stopper mechanism in addition to the hinge mechanism, the additional stopper mechanism, the first lock mechanism, and the second lock mechanism. The stopper mechanism and the additional stopper mechanism constitute a drop-off prevention mechanism for preventing the front cover 30 from dropping off from the front panel 20. The stopper mechanism is composed of a portion of the front panel 20 near the mounting portion 23 and the bearing portion 31 of the front cover 30, and will be described later in detail.
As shown in fig. 6, a pair of mounting holes 38 are provided in the front cover 30 adjacent to the positions where the pair of bearing portions 31 are provided in the left end portion of the front cover 30 in the closed state. The pair of mounting holes 38 communicate with the pair of bearing recesses 31a, and are used when the front cover 30 is assembled to the front panel 20.
That is, the front cover 30 can be assembled to the front panel 20 by inserting the pair of shaft portions 23a into the pair of bearing recesses 31a through the pair of mounting holes 38. More specifically, one of the pair of shaft portions 23a is first inserted into one of the pair of bearing concave portions 31a through the mounting hole portion 38 provided corresponding to the corresponding one of the pair of bearing concave portions 31a, and then the other of the pair of shaft portions 23a is inserted into the other of the pair of bearing concave portions 31a through the mounting hole portion 38 provided corresponding to the corresponding other of the pair of bearing concave portions 31 a. Thereby, the bearing portions 31 of the front cover 30 are elastically deformed, and the pair of shaft portions 23a are inserted into the pair of bearing recesses 31a, respectively, whereby the front cover 30 is rotatably assembled to the front panel 20.
Rotation of the front cover >
Fig. 7(a) and 7(B) are schematic cross-sectional views of a portion of the communication unit shown in fig. 1 including a hinge mechanism provided in the front panel and the front cover, fig. 8(a) and 8(B) are schematic cross-sectional views of a portion including an additional stopper mechanism, and fig. 9(a) and 9(B) are schematic cross-sectional views of a portion including a second lock mechanism. Fig. 10(a) and 10(B) are enlarged cross-sectional views of the region XA and the region XB shown in fig. 7(a) and 7(B), respectively, and fig. 10(C) is an enlarged cross-sectional view of the region XC shown in fig. 8 (B). Hereinafter, the turning operation of the front cover 30 in the communication unit 1 of the present embodiment will be described in detail with reference to fig. 7(a) to 10 (C).
Here, fig. 7(a), 8(a), and 9(a) each show a closed state of the front cover 30, and fig. 7(B), 8(B), and 9(B) each show an open state of the front cover 30. In fig. 7(a) to 9(B), various electronic components disposed in the vicinity of the display operation section 22 of the front panel 20 are not illustrated.
As shown in fig. 7(a) and 7(B), the shaft portion 23a provided in the mounting portion 23 of the front panel 20 is surrounded by the bearing portion 31 provided in the front cover 30. More specifically, the shaft portion 23a is inserted into a bearing recess 31a defined by the bearing 31, and the bearing recess 31a located on the front surface 30a side of the front cover 30 is surrounded by the bearing 31 except for an open portion. In other words, the shaft portion 23a is exposed to the outside only in the portion of the bearing recess 31a where the open portion is provided. A slight gap (clearance) is provided between the shaft portion 23a and the bearing portion 31 constituting the hinge mechanism, whereby the front cover 30 is configured to be rotatable.
In the closed state of the front cover 30 shown in fig. 7(a), 8(a), and 9(a), the main surface 22a of the display operation portion 22 of the front panel 20 is covered with the front cover 30. In this state, the first locking portion 26 provided on the front panel 20 locks the first locked portion 34 provided on the front cover 30, thereby lightly holding the closed state of the front cover 30.
Here, as shown in fig. 10(a), in the closed state of the front cover 30, a part of the bearing portion 31 provided in the front cover 30 exists in a state of being sandwiched between the shaft portion 23a provided in the front panel 20 and the facing wall portion 22b which is a portion of the wall portion of the front panel 20 that faces the shaft portion 23 a. The shaft portion 23a and the bearing portion 31 of the portion sandwiched between the opposing wall portions 22b constitute a stopper portion 31b, and the stopper portion 31b, the shaft portion 23a and the opposing wall portions 22b constitute a stopper mechanism.
The stopper mechanism prevents the front cover 30 from falling out within a range from a position of the closed state to a position rotated by substantially 90 ° within a rotational range of the front cover 30. Therefore, the stopper 31b is formed by a region of the bearing 31 that is rotated counterclockwise in the drawing from the portion sandwiched between the shaft portion 23a and the opposing wall portion 22b in the closed state to the left front end portion of the front cover 30.
On the other hand, in the closed state of the front cover 30, as shown in fig. 8(a), the auxiliary shaft portion 24 provided on the front panel 20 and the auxiliary stopper portion 32 provided on the front cover 30 are in a state of being substantially opposed to each other, and as shown in fig. 9(a), the second locking portion 25 provided on the front panel 20 is in a state of not being accommodated in the second locked portion 33 provided on the front cover 30.
When the front cover 30 is rotated forward from the above state (i.e., in the direction of arrow a1 shown in the figure), the front cover 30 is rotated about the rotation axis O defined by the shaft portion 23a, and is moved to the open state shown in fig. 7(B), 8(B), and 9 (B).
In the open state of the front cover 30 shown in fig. 7(B), 8(B), and 9(B), the main surface 22a of the display operation portion 22 of the front panel 20 is exposed to the outside. In this state, as shown in fig. 9(B), the second locking portion 25 provided on the front panel 20 is accommodated in the second locked portion 33 provided on the front cover 30.
That is, the tip of the second locking portion 25 having a protrusion shape provided on the front panel 20 is fitted into a concave portion having a groove shape formed on the top surface of the second locked portion 33 provided on the front cover 30, and the second locked portion 33 is locked by the second locking portion 25, thereby lightly maintaining the open state of the front cover 30.
Here, as shown in fig. 10(B), in the open state of the front cover 30, the stopper portion 31B is in a state of not being substantially positioned between the shaft portion 23a and the opposing wall portion 22B. That is, the front cover 30 rotates to bring the stopper portion 31b into a substantially disengaged state from between the shaft portion 23a and the opposing wall portion 22 b. Therefore, if the front cover 30 is configured to be rotated by substantially 90 ° or more from the position in the closed state, it is not sufficient to provide only the stopper mechanism, and a separate stopper mechanism is required.
Specifically, the additional stopper mechanism is constituted by the shaft portion 23a and the stopper portion 31b in addition to the auxiliary shaft portion 24 and the auxiliary stopper portion 32, and these auxiliary shaft portion 24, the auxiliary stopper portion 32, the shaft portion 23a, and the stopper portion 31b prevent the front cover 30 from coming off together.
More specifically, as shown in fig. 10(B) and 10(C), the arrangement direction of the auxiliary stopper portion 32 as viewed from the auxiliary shaft portion 24 is opposite to the arrangement direction of the stopper portion 31B (particularly, the portion sandwiched between the shaft portion 23a and the opposing wall portion 22B in the closed state) as viewed from the shaft portion 23 a. Thereby, the shaft portion 23a and the auxiliary shaft portion 24 are sandwiched by the stopper portion 31b and the auxiliary stopper portion 32 in the thickness direction of the front cover 30.
Therefore, the additional stopper mechanism prevents the front cover 30 from falling out within the range from the position rotated by substantially 90 ° to the position in the open state within the rotation range of the front cover 30. Here, strictly speaking, in the range from the position in the closed state to the position rotated by substantially 90 ° in the rotational range of the front cover 30, the shaft portion 23a and the auxiliary shaft portion 24 are sandwiched by the stopper portion 31b and the auxiliary stopper portion 32 in the thickness direction of the front cover 30, and therefore the additional stopper mechanism prevents the front cover 30 from falling off over the entire rotational range of the front cover 30.
Further, in order to shift the front cover 30 from the open state to the closed state, the front cover 30 is turned rearward (i.e., toward the side opposite to the arrow a1 shown in the figure), and the front cover 30 is turned around the turning axis O defined by the shaft portion 23a as the turning center, thereby shifting.
< D. nodule >
As described above, the communication unit 1 according to the present embodiment prevents the front cover 30 from coming off the housing 2, and can reduce the size of the hinge mechanism including the shaft portion 23a provided in the housing 2 and the bearing portion 31 provided in the front cover 30. That is, by providing the stopper mechanism including the above-described structure and the drop-off prevention mechanism including the additional stopper mechanism, the bearing recess 31a defined by the bearing 31 and accommodating the shaft portion 23a can be opened on the surface 30a of the front cover 30, and therefore, it is not necessary to provide the bearing 31 on the surface 30a side of the front cover 30. Accordingly, the miniaturization of the hinge mechanism can be achieved accordingly, and as a result, the front cover 30 can be thinned.
Further, since the communication unit 1 of the present embodiment is configured to include an additional stopper mechanism in addition to the stopper mechanism, the rotation range of the front cover 30 can be extended (that is, the front cover 30 is rotated more than 90 ° from the position in the closed state) while preventing the front cover 30 from falling off the housing 2. Therefore, the front cover 30 can be set to a wider rotation range and can be used conveniently.
Further, the additional stopper mechanism is constituted by the auxiliary shaft portion 24, the auxiliary stopper portion 32, the shaft portion 23a, and the stopper portion 31b as described above, whereby the additional stopper mechanism can be easily provided. Therefore, it is possible to maintain a simple structure and to expand the rotation range of the front cover 30.
In the communication unit 1 of the present embodiment, since the front cover 30 is formed of a translucent member, the light emitting unit 12 can be seen from the outside even when the front cover 30 is closed. Therefore, by adopting the above configuration, the display section 3 can be provided in the front cover 30, and thus the communication unit 1 excellent in space efficiency can be made.
In the communication unit 1 of the present embodiment, the pair of attachment holes 38 are provided in the wall surface of the front cover 30 at the portion adjacent to the stopper portion 31b in the direction in which the rotation axis O of the front cover 30 extends, and the pair of shaft portions 23a are inserted into the pair of bearing recesses 31a when the front cover 30 is assembled to the front panel 20, respectively, by the attachment holes 38.
With this configuration, the mounting hole 38 is present adjacent to the stopper 31b, and as a result, the thickness of the stopper 31b is reduced, and the front cover 30 including the stopper 31b is easily elastically deformed. Therefore, when the front cover 30 is assembled to the front panel 20, the shaft portion 23a provided in the front panel 20 can be easily inserted into the bearing recess 31a provided in the front cover 30.
< E, attached notes >
The embodiment includes the following technical ideas.
[ Structure 1]
An electronic machine, comprising:
a frame body 2; and
a cover 30 rotatably assembled to the frame body 2,
the lid 30 includes an inner surface 30b arranged on the frame 2 side in the closed state, and a surface 30a located on the opposite side of the inner surface 30b in the thickness direction of the lid 30,
the housing 2 includes a shaft portion 23a, the shaft portion 23a defining a rotation axis O of the cover 30,
the rotation axis O is disposed so as to extend in a direction orthogonal to the thickness direction of the cover 30,
the cover 30 includes a bearing portion 31 pivotally supporting the shaft portion 23a,
the bearing portion 31 has a bearing recess 31a which accommodates the shaft portion 23a and is open to the outside in the front surface 30a,
the anti-drop mechanism for preventing the lid 30 from dropping off from the housing 2 is constituted by a stopper mechanism including at least the shaft portion 23a, an opposing wall portion 22b, and a stopper portion 31b, the opposing wall portion 22b being a portion of the wall portion of the housing 2 opposing the shaft portion 23a, and the stopper portion 31b being a portion of the bearing portion defining the bearing recess 31a and being sandwiched between the shaft portion 23a and the opposing wall portion 22 b.
[ Structure 2]
The electronic apparatus according to claim 1, wherein the drop preventing mechanism further includes an additional stopper mechanism for preventing the lid 30 from dropping in a state where the stopper portion 31b is dropped out from between the shaft portion 23a and the opposing wall portion 22b by the rotation of the lid 30.
[ Structure 3]
The electronic device according to configuration 2, wherein said additional stopper means is constituted by an auxiliary shaft portion 24 provided in said housing 2 and an auxiliary stopper portion 32 provided in said cover 30 in addition to said shaft portion 23a and said stopper portion 31b,
the arrangement direction of the auxiliary stopper portion 32 when viewed from the auxiliary shaft portion 24 is set to be opposite to the arrangement direction of the stopper portion 31b when viewed from the shaft portion 23a so that the shaft portion 23a and the auxiliary shaft portion 24 are sandwiched by the stopper portion 31b and the auxiliary stopper portion 32 in the thickness direction of the cover 30.
[ Structure 4]
The electronic device according to any one of configurations 1 to 3, wherein a mounting hole 38 is provided in a wall surface of the cover 30 at a portion adjacent to the stopper 31b in a direction in which the rotation axis O extends, the mounting hole 38 being used to insert the shaft portion 23a into the bearing recess 31a when the cover 30 is assembled to the housing 2.
[ Structure 5]
The electronic device according to any one of configurations 1 to 4, wherein the light emitting unit 12 is provided to the housing 2 so as to be exposed to the outside,
the cover 30 is configured to cover the frame 2 including the portion of the light-emitting unit 12 in a closed state and to expose the frame 2 including the portion of the light-emitting unit 12 in an open state,
the cover 30 includes a light-transmitting member.
[ Structure 6]
The electronic apparatus according to any one of configurations 1 to 5, wherein a pair of the shaft portions 23a is provided in the housing 2,
the lid 30 is provided with a pair of the bearing portions 31.
< F, other >
In the above-described embodiment, the case where the additional stopper mechanism is provided in addition to the stopper mechanism as the drop-off prevention mechanism for preventing the lid from dropping off from the housing has been described as an example, but when it is not necessary to rotate the lid more than 90 ° from the position in the closed state, the additional stopper mechanism is not necessary. In this case, the cover is prevented from falling off from the housing, and the hinge mechanism can be downsized, and the cover can be thinned.
In the above-described embodiment, the case where the second locking mechanism including the second locking portion and the second portion-to-be-locked is used to restrict the rotational range of the cover has been described as an example, but the auxiliary shaft portion may be configured to abut against the auxiliary stopper portion in a state where the second locking portion and the second portion-to-be-locked are engaged, so that the rotational range of the cover is restricted by the auxiliary shaft portion and the auxiliary stopper portion in addition to the second locking portion. In the case of such a configuration, the auxiliary shaft portion and the auxiliary stopper portion function as a stopper mechanism, and therefore the range of rotation of the cover can be more reliably limited.
In the above-described embodiment, the case where the cover is formed of the light-transmitting member and the display portion is provided in the cover has been described as an example, but when the display portion is not required to be provided in the cover, the cover is not required to be formed of the light-transmitting member. Further, even when the display portion is provided in the cover, the cover is not necessarily formed of a light-transmitting member, and for example, the display portion may be provided in the cover by forming the cover with a light-shielding member and providing a light-projecting window therein.
In the above embodiment, the case where the cover is provided on the front surface of the housing has been described as an example, but the position where the cover is provided is not limited at all, and the position can be set arbitrarily.
Further, in the above-described embodiment, the case where the present disclosure is applied to the communication unit of the remote terminal device of the PLC has been described as an example, but the application object of the present disclosure is not limited thereto, and the present disclosure can be applied to various electronic apparatuses.
As described above, the embodiments disclosed herein are illustrative and not restrictive in all respects. The technical scope of the present invention is defined by the claims, and includes all modifications within the meaning and scope equivalent to the description of the claims.
Claims (9)
1. An electronic device, comprising:
a frame body; and
a cover rotatably assembled to the frame body,
the lid includes an inner surface arranged on the frame side in a closed state, and a surface located on a side opposite to the inner surface in a thickness direction of the lid,
the frame includes a shaft portion constituted by a mounting portion, the shaft portion defining a rotation axis of the cover,
the rotating shaft is disposed so as to extend in a direction orthogonal to the thickness direction of the cover,
the cover includes a bearing portion pivotally supporting the shaft portion,
the bearing portion has a bearing recess portion that accommodates the shaft portion and is open to the outside in the surface, the bearing recess portion accommodates the shaft portion of the mounting portion, thereby surrounding the shaft portion and constituting a hinge mechanism together with the shaft portion,
the stopper mechanism is configured to include at least the shaft portion, an opposing wall portion that is a portion of the wall portion of the housing that opposes the shaft portion, and a stopper portion that is a portion of the bearing portion that defines the bearing recess and is sandwiched between the shaft portion and the opposing wall portion.
2. The electronic device according to claim 1, wherein the drop-preventing mechanism further includes an additional stopper mechanism that prevents the lid from dropping in a state where the stopper portion is dropped out from between the shaft portion and the opposing wall portion due to rotation of the lid,
the additional stopper mechanism is composed of an auxiliary shaft portion provided in the frame body and an auxiliary stopper portion provided in the cover, in addition to the shaft portion and the stopper portion,
the auxiliary stopper portion is disposed in a direction opposite to a direction in which the stopper portion is disposed when viewed from the auxiliary shaft portion, such that the shaft portion and the auxiliary shaft portion are sandwiched between the stopper portion and the auxiliary stopper portion in a thickness direction of the cover.
3. The electronic device according to claim 1 or 2, wherein a mounting hole is provided in a wall surface of the cover at a portion adjacent to the stopper in a direction in which the rotation shaft extends, the mounting hole being used to insert the shaft portion into the bearing recess when the cover is assembled to the housing.
4. The electronic device according to claim 1 or 2, wherein the light emitting section is provided in the housing so as to be exposed to the outside,
the cover is configured to cover the frame including the portion of the light-emitting section in the closed state and to expose the frame including the portion of the light-emitting section in the open state,
the cover includes a light transmissive member.
5. The electronic device according to claim 3, wherein the light emitting section is provided in the housing so as to be exposed to the outside,
the cover is configured to cover the frame including the portion of the light-emitting section in the closed state and to expose the frame including the portion of the light-emitting section in the open state,
the cover includes a light transmissive member.
6. The electronic device according to claim 1 or 2, wherein a pair of the shaft portions are provided in the housing,
the cover is provided with a pair of the bearing portions.
7. The electronic device according to claim 3, wherein a pair of the shaft portions are provided in the housing,
the cover is provided with a pair of the bearing portions.
8. The electronic device according to claim 4, wherein a pair of the shaft portions are provided in the housing,
the cover is provided with a pair of the bearing portions.
9. The electronic device according to claim 5, wherein a pair of the shaft portions are provided in the housing,
the cover is provided with a pair of the bearing portions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018032179A JP6874716B2 (en) | 2018-02-26 | 2018-02-26 | Electronics |
| JP2018-032179 | 2018-02-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110198602A CN110198602A (en) | 2019-09-03 |
| CN110198602B true CN110198602B (en) | 2020-12-22 |
Family
ID=67751132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811509323.8A Active CN110198602B (en) | 2018-02-26 | 2018-12-11 | Electronic machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6874716B2 (en) |
| CN (1) | CN110198602B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6836093B1 (en) * | 2020-07-29 | 2021-02-24 | 富士通クライアントコンピューティング株式会社 | Electronics |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110198602A (en) | 2019-09-03 |
| JP2019149413A (en) | 2019-09-05 |
| JP6874716B2 (en) | 2021-05-19 |
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