JP2015225944A - Electronic apparatus and method of mounting cover for the electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stabilize the integration of a cover and an electronic apparatus body in simple structure.SOLUTION: An electronic apparatus (projection device 1) includes: a projection device body 2; a cover 3 that covers one side surface of the projection device body 2; and a first fixing tool for fixing the electronic apparatus body (projection device body 2) and the cover 3. The electronic apparatus body includes: a housing body 5 of which a back surface is open; and a back surface part 6 that covers the back surface of the housing body 5. In the back surface part 6, an insertion hole 61a into which a second fixing tool is inserted is provided at one corner on a side of at least one side surface 52. A first engaging part 55 with which the first fixing tool is engaged is formed at the other corner on the side of the one side surface 52 of the housing body 5. The cover 3 includes: a hook 7 which is engaged into the insertion hole 61a to open/close the cover 3 relatively to the electronic apparatus body; and a second engaging part 34 which is enabled to be engaged with the first fixing tool together with the first engaging part 55 when the cover 3 is brought into a closed state by the hook 7.

Description

  The present invention relates to an electronic device and a method for attaching a cover of the electronic device.

  2. Description of the Related Art Conventionally, as a wiring cover attached to a wiring opening, for example, a cover that is attached by applying the wiring cover frame structure disclosed in Patent Document 1 is known. It is also considered that such a frame structure is applied to a wiring portion of an electronic device and a wiring cover is attached to the electronic device.

JP 2010-125213 A

Here, in order to prevent the wiring cover from dropping (dropping out), it is necessary to fix the wiring cover to the electronic device body with a plurality of cover fixing screws (fixing tools). However, it is also desired to reduce the number of fixing tools for fixing the cover as much as possible in order to increase the work efficiency when the cover is attached and detached.
An object of the present invention is to stabilize the integrity of the cover and the electronic device main body with a simple structure.

In invention of Claim 1,
An electronic device having an electronic device body, a cover that covers one side surface of the electronic device body, and a first fixture that fixes the electronic device body and the cover,
The electronic device main body includes a housing main body whose back surface is open, and a back surface portion that covers the back surface of the housing main body,
In the back surface portion, an insertion hole into which a second fixing tool for fixing the back surface portion to the housing body is inserted is provided in at least one corner portion on the one side surface side,
A first engagement portion that engages with the first fixture is formed at the other corner of the one side of the housing body,
The cover is
A hook provided at one end of the cover so as to engage with the insertion hole provided in the one corner, and rotating the cover so as to open and close the electronic device main body;
A second engagement portion that is provided at the other end of the cover and that is capable of engaging with the first fixture together with the first engagement portion when the cover is closed by the hook; With
The first fixing tool is engaged with the first engagement portion and the second engagement portion, thereby fixing the cover to the electronic device main body.

  According to the present invention, the integrity of the cover and the electronic device main body can be stabilized with a simple structure.

It is a perspective view which shows schematic structure of the projection apparatus which concerns on this embodiment from the main surface side. It is a perspective view which shows schematic structure of the projection apparatus which concerns on this embodiment from the back side. It is the exploded view which showed typically the projection apparatus main body and cover which concern on this embodiment, (A) is a rear view, (B) is a side view. It is a perspective view which shows schematic structure of the projection apparatus main body which concerns on this embodiment from the main surface side. It is a perspective view which shows schematic structure of the projection apparatus main body which concerns on this embodiment from the back side. It is a perspective view showing a schematic structure of a cover concerning this embodiment. It is a front view which shows schematic structure of the cover which concerns on this embodiment. It is a perspective view which expands and shows the state just before engagement of the insertion hole provided in one corner | angular part which concerns on this embodiment, and a hook. It is explanatory drawing which shows 1 process of the attachment method of the cover which concerns on this embodiment. It is a figure which shows the state by which the projection apparatus main body which concerns on this embodiment was suspended from the ceiling.

  Hereinafter, an example of an embodiment when an electronic apparatus according to the invention is applied to a projection apparatus will be described in detail with reference to the accompanying drawings. However, the scope of the invention is not limited to the illustrated examples.

  FIG. 1 is a perspective view showing a schematic configuration of the projection apparatus 1 from the main surface side. FIG. 2 is a perspective view showing a schematic configuration of the projection apparatus 1 from the back side. The projection device 1 according to the present embodiment is a projection device capable of being suspended from the ceiling (suspended on a wall) installed on a ceiling, and here a surface facing downward in a suspended state is a main surface, The surface facing upward is defined as the back surface. Further, when the projection apparatus 1 is placed on a desk or a table with the back side down, the main surface is directed upward. That is, regardless of whether the projector is placed or suspended from the ceiling, the rear surface of the projection device 1 is a surface that is less visible to the user than the main surface (see FIG. 10 described later).

  As shown in FIGS. 1 and 2, the projection apparatus 1 is fixed to the projection apparatus body 2 that is an electronic apparatus body, a cover 3 that covers one side of the projection apparatus body 2, and the projection apparatus body 2 and the cover 3. A first fixture 4 such as a screw is provided.

FIG. 3 is an exploded view schematically showing the projection apparatus main body 2 and the cover 3, (A) is a rear view, and (B) is a side view. FIG. 4 is a perspective view showing a schematic configuration of the projection apparatus main body 2 from the main surface side. FIG. 5 is a perspective view showing a schematic configuration of the projection apparatus main body 2 from the back side.
As shown in FIGS. 3 to 5, in the projection apparatus main body 2, the terminal group 51 to which the wiring is connected is exposed at one side surface 52 and the rear surface of the housing main body 5 is opened. A back surface portion 6 is provided.

  The housing body 5 incorporates a projection unit (not shown) for projecting an image. The image light emitted from the projection unit is projected through the projection port 58. A concave portion 53 is formed over the entire width of the main surface of the housing body 5 so as not to obstruct the image light. A pair of fitting holes 54 recessed inward are formed on the main surface side edge of one side surface 52 of the housing body 5.

A plurality of insertion holes 61 are provided in the peripheral portion and the central portion of the back surface portion 6. A second fixing tool 62 such as a screw for fixing the back surface portion 6 to the housing body 5 is inserted into the insertion hole 61. Of the plurality of insertion holes 61, one insertion hole 61a is provided at one corner on the side surface 52 side.
Further, a screw hole 64 for fixing a jig for connecting a ceiling hanging jig 101 (see FIG. 10 described later) is provided at the center of the back surface part 6.
A first engagement portion 55 with which the first fixture 4 is engaged is formed at the other corner portion on the side surface 52 side of the housing body 5. Specifically, the first engaging portion 55 is formed so as to be recessed with respect to the side surface 56 that forms the other corner portion together with the one side surface 52, and the female screw portion 57 with which the first fixing tool 4 engages with the bottom surface. Is formed.

FIG. 6 is a perspective view showing a schematic configuration of the cover 3. FIG. 7 is a front view showing a schematic configuration of the cover 3.
As shown in FIGS. 3, 6, and 7, an opening 31 is provided on the back surface of the cover 3 for drawing the wiring connected to the terminal group 51 to the outside. When the cover 3 is attached to the housing body 5, the portion other than the opening 31 is continuous with the housing body 5.
In addition, a concave portion 32 that is continuous with the concave portion 53 is formed on the main surface of the cover 3 so as not to interfere with the image light emitted from the projection portion together with the concave portion 53 of the housing body 5. The recess 53 and the recess 32 may have any shape as long as they do not interfere with the image light.

  A hook 7 that engages with an insertion hole 61 a provided at one corner of the back surface portion 6 and rotates the projection device main body 2 to open and close the cover 3 at one end portion on the back surface side of the cover 3. Is provided.

FIG. 8 is an enlarged perspective view showing a state immediately before the engagement between the insertion hole 61 a provided at one corner and the hook 7.
As shown in FIG. 8, the hook 7 is provided with a pedestal 71 protruding outward and a protrusion 72 protruding from the pedestal 71 toward the main surface. The protrusion 72 enters the insertion hole 61a and engages with the insertion hole 61a. Since the protrusion 72 rotates along the inner peripheral surface of the insertion hole 61 a, the protrusion 72 serves as the rotation axis of the cover 3.
Here, the surface in which each insertion hole 61 is provided with respect to a plane D perpendicular to a rotation axis (indicated by a one-dot chain line in FIG. 8) formed by the protrusion 72 in a state where the cover 3 is mounted on the projection apparatus main body 2. E is inclined to approach the main surface as it goes outward. The inclination angle α is approximately 45 degrees with respect to the plane D.
On the other hand, in the vicinity of the insertion hole 61, a recess 63 into which the base 71 is fitted when the cover 3 is mounted on the projection apparatus main body 2 is formed.

A pair of fitting protrusions 33 (fourth engaging portions) that respectively fit in the pair of fitting holes 54 (third engaging portions) of the housing body 5 are provided on the edge on the main surface side of the cover 3. It has been.
At the other end of the cover 3, when the cover 3 is closed by the hook 7, there is a second engagement portion 34 that can be engaged with the first fixture 4 together with the first engagement portion 55. Is formed. Specifically, the second engagement portion 34 protrudes in a shape that fits in the first engagement portion 55. The second engagement portion 34 is provided with a through hole 35 communicating with the female thread portion 57 of the first engagement portion 55. When the second engagement portion 34 is accommodated in the first engagement portion 55, the female screw portion 57 and the through hole 35 communicate with each other. This state is a state in which the first fixture 4 can be engaged. When the first fixture 4 is screwed into the female screw portion 57 from the through hole 35, the first fixture 4 is engaged with the first engagement portion 55 and the second engagement portion 34, so that the cover 3 is projected. It is fixed to the apparatus main body 2.

Next, a method for attaching the cover 3 will be specifically described. FIG. 9 is an explanatory view showing one step of the attaching method.
First, as shown in FIG. 8, the operator aligns the cover 3 with the projection apparatus main body 2 so that the protrusion 72 of the hook 7 engages with the insertion hole 61a.
Then, after the protrusion 72 is engaged with the insertion hole 61a, the operator rotates the cover 3 with the hook 7 so that the cover 3 is closed as shown in FIG.
In the closed state, the pedestal 71 of the hook 7 is fitted into the recess 63 of the back surface portion 6, and the fitting projection 33 is fitted into the fitting hole 54 of the housing body 5. In the closed state, the second engagement portion 34 is accommodated in the first engagement portion 55 so that the first engagement portion 55 and the second engagement portion 34 can engage with the first fixture 4. It becomes.
Thereafter, the operator screws the first fixture 4 from the through hole 35 to the female screw portion 57 to fix the cover 3 to the projection apparatus main body 2. As a result, the state shown in FIGS. 1 and 2 is obtained.

As described above, according to the present embodiment, since the hook 7 of the cover 3 is engaged with the insertion hole 61a of the projection apparatus main body 2, the cover 3 and the projection apparatus are engaged by the engagement of the hook 7 and the insertion hole 61a. The integrity with the main body 2 can be maintained. On the opposite side, the first fixture 4 engages with the second engagement portion 34 of the cover 3 and the first engagement portion 55 of the projection apparatus main body 2, and the cover 3 is fixed to the projection apparatus main body 2. The
Therefore, even if there is only one first fixing tool 4 for fixing the cover, the integrity of the cover 3 and the projection apparatus main body 2 can be stabilized.
In addition, a second fixing tool 62 for fixing the back surface portion 6 to the housing body 5 is inserted into the insertion hole 61a, and a protrusion 72 of the hook 7 is also inserted. That is, the insertion hole 61a has both a function for fixing the back surface portion 6 to the housing body 5 and a function for engaging the cover 3. As a result, the structure can be simplified as compared with the case where they are provided individually.
In addition, since the first fixing tool 4 for fixing the cover is one, the attaching / detaching work of the cover 3 is facilitated.

If priority is given to the stability of the cover 3, it is desirable to engage a part of the cover 3 with the projection apparatus main body 2 on the side surface facing the second engagement portion 34. On the other hand, if priority is given to the rotation of the cover 3, it is desirable that the surface of the portion where the insertion hole 61 a with which the hook 7 is engaged is formed parallel to a plane perpendicular to the rotation axis of the hook 7. Thus, the stability and the rotation of the cover 3 are mutually contradictory properties.
However, in the present embodiment, the angle between the surface of the back surface portion 6 where the insertion hole 61a with which the hook 7 engages and the plane perpendicular to the rotation axis of the hook 7 is approximately 45 degrees. The stability and rotation of the cover 3 can be satisfied with a good balance.

  Moreover, since the back surface of the housing body 5 is a surface that is less visible by the user than the main surface of the housing body 5, the back surface portion 6 that covers the back surface and the hook 7 that engages with the back surface portion 6 are also visible. This is preferable in terms of appearance.

  And it becomes possible to make the attachment operation | work of the projection apparatus 1 which can be suspended from the ceiling assumed that the attachment operation | work of the cover 3 difficult becomes efficient.

FIG. 10 shows a state when the projection apparatus 1 is suspended from the ceiling (wall hanging). The projection apparatus 1 is attached to an L-shaped ceiling jig 101 as viewed from the side surface by a jig fixing hole 64 and a jig fixing screw 102.
In this way, when suspended from the ceiling, the hook 7 is engaged with the housing body 5 from above, so that the cover 3 is more difficult to drop.

  The embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit of the present invention.

For example, in the above embodiment, the case where the first engaging portion 55 is formed in a concave shape and the second engaging portion 34 is formed in a convex shape has been described as an example. The engaging part may be formed in a convex shape, and the second engaging part may be formed in a concave shape.
Further, the concave and convex relations of the engaging portions composed of the pair of fitting holes 54 of the housing body 5 and the pair of fitting protrusions 33 respectively fitted into the fitting holes 54 are irregularities that are opposite to each other. It may be a configuration, and the number thereof may be 1 or 3 or more instead of 2.
The first fixture 4 and the second fixture 62 may be fixtures other than the screws described above.

  Moreover, although the case where the cover 3 was for wiring was illustrated and demonstrated in the said embodiment, it cannot be overemphasized that this invention is applicable also to the cover of another use.

As mentioned above, although several embodiment of this invention was described, the scope of the present invention is not limited to the above-mentioned embodiment, The range of the invention described in the claim is equal to the equivalent range. Including.
The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.

[Appendix]
<Claim 1>
An electronic device having an electronic device body, a cover that covers one side surface of the electronic device body, and a first fixture that fixes the electronic device body and the cover,
The electronic device main body includes a housing main body whose back surface is open, and a back surface portion that covers the back surface of the housing main body,
In the back surface portion, an insertion hole into which a second fixing tool for fixing the back surface portion to the housing body is inserted is provided in at least one corner portion on the one side surface side,
A first engagement portion that engages with the first fixture is formed at the other corner of the one side of the housing body,
The cover is
A hook provided at one end of the cover so as to engage with the insertion hole provided in the one corner, and rotating the cover so as to open and close the electronic device main body;
A second engagement portion that is provided at the other end of the cover and that is capable of engaging with the first fixture together with the first engagement portion when the cover is closed by the hook; With
The electronic device according to claim 1, wherein the first fixing member is engaged with the first engaging portion and the second engaging portion to fix the cover to the electronic device main body.
<Claim 2>
The electronic device according to claim 1,
The electronic device according to claim 1, wherein the surface of the portion in which the insertion hole with which the hook engages is formed is inclined at an angle of approximately 45 degrees with respect to a plane perpendicular to the rotation axis of the hook.
<Claim 3>
The electronic device according to claim 1 or 2,
The housing main body further includes a third engagement portion including a hole or a protrusion that engages with the cover,
The electronic device according to claim 1, wherein the cover further includes a fourth engagement portion including a protrusion or a hole engaged with the third engagement portion at an edge portion.
<Claim 4>
In the electronic device as described in any one of Claims 1-3,
The electronic apparatus according to claim 1, wherein the rear surface of the housing body is a surface that is less visible by a user than a main surface of the housing body.
<Claim 5>
In the electronic device as described in any one of Claims 1-4,
The electronic device body includes a terminal group to which wiring is connected to the one side surface,
The electronic device according to claim 1, wherein the cover is a wiring cover that covers the one side surface.
<Claim 6>
In the electronic device as described in any one of Claims 1-5,
The electronic device is a projection device that can be suspended from a ceiling.
<Claim 7>
It is the attachment method of the cover of the electronic device as described in any one of Claims 1-6,
By engaging the hook with the insertion hole of the electronic device main body and then rotating the cover so that the hook is closed, the first engagement portion and the second engagement portion Are engaged with the first fixture, and the first fixture is engaged with the first engagement portion and the second engagement portion, and the cover is attached to the electronic device main body. A method of attaching a cover of an electronic device, wherein the cover is fixed to the electronic device.

1 Projection device (electronic equipment)
2 Projector body (electronic equipment body)
DESCRIPTION OF SYMBOLS 3 Cover 4 1st fixing tool 5 Case main body 6 Back surface part 7 Hook 31 Opening part 32 Recessed part 33 Fitting protrusion 34 Second engaging part 35 Through-hole 51 Terminal group 52 One side surface 53 Recessed part 54 Fitting hole 55 First engagement Joint portion 56 Side surface 57 Female screw portion 58 Projection port 61 Insertion hole 61a Insertion hole 62 Second fixture 63 Recess 64 Screw hole for fixing jig 71 Base 72 Projection (rotating shaft)
101 Ceiling mount jig 102 Fixing screw

Claims (7)

An electronic device having an electronic device body, a cover that covers one side surface of the electronic device body, and a first fixture that fixes the electronic device body and the cover,
The electronic device main body includes a housing main body whose back surface is open, and a back surface portion that covers the back surface of the housing main body,
In the back surface portion, an insertion hole into which a second fixing tool for fixing the back surface portion to the housing body is inserted is provided in at least one corner portion on the one side surface side,
A first engagement portion that engages with the first fixture is formed at the other corner of the one side of the housing body,
The cover is
A hook provided at one end of the cover so as to engage with the insertion hole provided in the one corner, and rotating the cover so as to open and close the electronic device main body;
A second engagement portion that is provided at the other end of the cover and that is capable of engaging with the first fixture together with the first engagement portion when the cover is closed by the hook; With
The electronic device according to claim 1, wherein the first fixing member is engaged with the first engaging portion and the second engaging portion to fix the cover to the electronic device main body. The electronic device according to claim 1,
The electronic device according to claim 1, wherein the surface of the portion in which the insertion hole with which the hook engages is formed is inclined at an angle of approximately 45 degrees with respect to a plane perpendicular to the rotation axis of the hook. The electronic device according to claim 1 or 2,
The housing main body further includes a third engagement portion including a hole or a protrusion that engages with the cover,
The electronic device according to claim 1, wherein the cover further includes a fourth engagement portion including a protrusion or a hole engaged with the third engagement portion at an edge portion. In the electronic device as described in any one of Claims 1-3,
The electronic apparatus according to claim 1, wherein the rear surface of the housing body is a surface that is less visible by a user than a main surface of the housing body. In the electronic device as described in any one of Claims 1-4,
The electronic device body includes a terminal group to which wiring is connected to the one side surface,
The electronic device according to claim 1, wherein the cover is a wiring cover that covers the one side surface. In the electronic device as described in any one of Claims 1-5,
The electronic device is a projection device that can be suspended from a ceiling. It is the attachment method of the cover of the electronic device as described in any one of Claims 1-6,
By engaging the hook with the insertion hole of the electronic device main body and then rotating the cover so that the hook is closed, the first engagement portion and the second engagement portion Are engaged with the first fixture, and the first fixture is engaged with the first engagement portion and the second engagement portion, and the cover is attached to the electronic device main body. A method of attaching a cover of an electronic device, wherein the cover is fixed to the electronic device.

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