JP2014170093A - Cover for housing, and projector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover for a housing capable of improving fitting workability with a simple constitution, and provide a projector.SOLUTION: A cover 2 for a housing is fitted to a housing 11 of a projector 1 having a connection terminal (a connection terminal group 13) connected to the projector 1 through a connection cable, and covers the connection terminal group 13. The cover 2 for a housing has: an insertion part 21 into which the connection cable is inserted; a box-like cover body 20 whose one end surface opens; and a fixation pat 22 that is installed in the cover body 20 and is fixed by a leg part 15 installed in the housing 11 and supporting a projector body 10.

Description

  The present invention relates to a housing cover and a projector including the housing cover.

  2. Description of the Related Art Conventionally, as an electronic device, for example, a projector that modulates light emitted from a light source according to image information and projects a modulated image on a screen or the like is known. The projector is usually provided with a connection terminal that is connected to an external device via a connection cable. The projector projects an image input from an external device through a connection cable and a connection terminal.

  The projector is used by being installed on a desk or a ceiling. In particular, when a projector is installed on a ceiling and used, a visual appearance of the projector is improved by attaching a cover that covers and hides a connection cable to be connected to the projector.

Patent Document 1 discloses the following configuration of an electronic device casing cover.
A cover member as an electronic device casing cover includes a cover body, an engagement member, and a coil spring as an urging member. The cover main body has a notch as an insertion portion through which a connection cable connected to the connector group is inserted, and is formed in a box shape with one end face opened. The engaging member is rotatably provided inside the cover body and engages with the exterior case. The coil spring biases the engagement member in the direction of engagement with the exterior case. Note that with this configuration, it is possible to attach the cover for the electronic device housing to the electronic device housing without using a tool such as a screwdriver, and to easily attach and detach the electronic device housing.

Further, Patent Document 2 discloses the following configuration of the mounting cover.
The mounting cover that is detachably mounted on the mounting target portion includes a fixing portion that is mounted and fixed on the mounting target portion, and the fixing portion is mounted with a screw that is rotatably supported by the mounting cover body. A screw fixing part for fixing to the target part is provided. Further, the screw fixing portion includes a biasing member that applies a biasing force to the screw. In addition, with this configuration, the biasing member provided in the fixing portion (screw fixing portion) suppresses the rattling of the screw, and improves workability when tightening with a screw tightening tool (driver or the like). In addition, the mounting cover can be securely fixed to the mounting target portion.

JP 2004-207400 A JP 2012-8174 A

However, the cover for the electronic device casing of Patent Document 1 requires a member for attachment to the cover body, such as a coil spring or an engagement member, and there is a problem that the configuration and assembly of the engagement member and the like are likely to be complicated. there were. In addition, the mounting cover of Patent Document 2 requires a tool for screw tightening (such as a screwdriver) when it is fixed to the mounting target portion, so that it is a problem to further improve workability.
Therefore, there has been a demand for a housing cover and a projector that improve the mounting workability with a simple configuration.

  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 housing cover according to this application example is a housing cover that is attached to a housing of an electronic device having a connection terminal connected to an external device via a connection cable and covers the connection terminal. (A) a substantially box-shaped cover main body having an insertion portion through which the connection cable is inserted and having one end face opened; and (b) an electronic device main body installed in the cover main body and installed in the housing. And a fixing portion that is fixed using a supporting leg portion.

  According to such a casing cover, the cover main body and the fixing portion are provided, and the fixing portion is fixed by using the leg portions that are installed in the casing and support the electronic device main body. As described above, by using the legs installed in the casing of the electronic device, for example, it is not necessary to install a complicated mechanism such as a coil spring or an engaging member in the cover body, as in the past. . Further, for example, the housing cover can be attached to the housing without requiring an attachment tool (driver or the like) for tightening a fixing screw or the like as in the prior art. Therefore, the configuration of the housing cover can be simplified, and the housing cover can be easily attached to the electronic device (housing), so that the mounting workability can be improved.

  Application Example 2 In the housing cover according to the application example described above, it is preferable that the fixing portion includes a notch portion that is opened from one end side so that one end side is opened and the shaft portion of the leg portion is interposed therebetween.

  According to such a housing cover, it is possible to attach and fix the housing to the housing by inserting the notched portion into the leg portion from one end side opened so as to sandwich the shaft portion of the leg portion. , Mounting work can be easily performed.

  Application Example 3 In the housing cover according to the application example, it is preferable that the fixing portion is sandwiched between the housing and the leg portion.

  According to such a housing cover, the fixing portion can be more reliably fixed by being sandwiched between the housing and the leg portion. For example, the shaft portion of the leg portion is constituted by a male screw, a female screw that is screwed into the male screw is installed in the housing, and the leg portion can be expanded and contracted with respect to the housing by rotating the leg portion. If the fixing portion is inserted and fixed in the leg portion, the leg portion is further rotated, and the fixing portion is sandwiched between the casing and the leg portion. The body cover can be more securely fixed to the housing.

  Application Example 4 In the housing cover according to the application example described above, the fixing portion is locked to the end on one end side in at least one of the housing and the leg portion in a direction opposite to the insertion direction of the fixing portion. It is preferable that a locking portion is provided.

  According to such a case cover, when the case cover is attached to the case, the position in the direction opposite to the insertion direction can be fixed by the locking portion. Therefore, it is possible to prevent the housing cover from being detached from the housing by locking the housing cover from moving in the direction opposite to the insertion direction.

  Application Example 5 In the housing cover according to the application example described above, the cover body preferably has one or two fixing portions.

  In an electronic device (for example, a projector), the leg portions installed on the side to which the housing cover is attached are often composed of one or two legs. Therefore, according to the housing cover described above, the fixing portion can be provided in correspondence with the number of legs installed in the electronic device, so that the legs can be used efficiently.

  Application Example 6 A projector according to this application example includes a light modulation device that modulates a light beam emitted from a light source according to image information, a housing in which the light modulation device is disposed, and any one of the above-described ones. And a housing cover.

  According to such a projector, the housing cover can be easily fixed to the housing using the legs.

  Application Example 7 In the projector according to the application example described above, at least one of the housing and the leg portion is for locking with a locking portion installed in the fixing portion in a direction opposite to the insertion direction of the fixing portion. It is preferable that a receiving part is provided.

  According to such a projector, it is possible to provide a locking receiving portion that locks in the direction opposite to the insertion direction of the fixing portion, and to lock the locking portion installed in the fixing portion, with a simple configuration. The position in the direction opposite to the insertion direction of the housing cover can be reliably fixed. Therefore, it is possible to prevent the housing cover from being detached from the housing by locking the housing cover from moving in the direction opposite to the insertion direction.

  Application Example 8 In the projector according to the application example described above, it is preferable that the leg portion is installed to be extendable and contractible in the housing, and the fixing portion is sandwiched between the leg portion and the housing.

  According to such a projector, the casing cover can be more securely fixed to the casing by sandwiching the fixing section with the casing by the leg portions that are installed to be extendable and contractable to the casing.

  Application Example 9 In the projector according to the application example described above, the leg portion includes a screw portion that constitutes the shaft portion, and a nut portion that is screwed into the screw portion to sandwich the fixing portion with the housing. It is preferable.

  According to such a projector, the leg portion has a screw portion and a nut portion. For example, after adjusting the installation angle of the projector body by adjusting the height of the leg portion, the nut portion is rotated. The fixing portion can be securely held between the housing and the nut portion by being screwed into the screw portion.

FIG. 2 is a schematic perspective view of the projector according to the first embodiment, where (a) is a perspective view of the projector viewed from the front side, and (b) is a perspective view of the projector viewed from the back side. It is a schematic perspective view which shows the cover for housing | casings, (a) is the perspective view which looked at the cover for housings from the front side, (b) is the perspective view which looked at the cover for housings from the back side. It is a perspective view which shows the state which attached the cover for housing | casing to the projector, (a) is the perspective view seen from the front side of the projector, (b) is the perspective view seen from the back side of the cover for housings. FIG. 3 is a schematic cross-sectional view illustrating a state where a housing cover is attached to the housing. It is a schematic perspective view which shows the cover for housing | casing which concerns on 2nd Embodiment, (a) is the perspective view which looked at the cover for housing | casing from the front side, (b) looked at the cover for housing | casing from the back side. Perspective view. It is a perspective view which shows the state which attached the cover for housing | casing to the projector, (a) is the perspective view seen from the front side of the projector, (b) is the perspective view seen from the back side of the cover for housings. FIG. 3 is a schematic cross-sectional view illustrating a state where a housing cover is attached to the housing. It is a schematic perspective view which shows the cover for housing | casing which concerns on 3rd Embodiment, (a) is the perspective view which looked at the cover for housing | casing from the front side, (b) has seen the cover for housing | casing from the back side. Perspective view. It is a perspective view which shows the state which attached the cover for housing | casing to the projector, (a) is the perspective view seen from the front side of the projector, (b) is the perspective view seen from the back side of the cover for housings. FIG. 3 is a schematic cross-sectional view illustrating a state where a housing cover is attached to the housing.

Hereinafter, as an embodiment of an electronic device and a housing cover for the electronic device, a projector that modulates according to image information input from the outside and projects the modulated image onto a screen or the like, and a housing cover for the projector This will be described with reference to the drawings.
(First embodiment)

  FIG. 1 is a schematic perspective view of the projector 1 according to the first embodiment, FIG. 1A is a perspective view of the projector 1 as viewed from the front surface 11a side, and FIG. It is the perspective view seen from the back surface 11b side. An external configuration of the projector 1 will be described with reference to FIG.

  The projector 1 as an electronic apparatus includes an optical system such as a light source device and a light modulation device (both not shown). Then, the projector 1 modulates the light beam emitted from the light source device (light source) by the light modulation device in accordance with image information input from the outside, and projects the modulated image on a screen or the like. As shown in FIG. 1, the projector 1 is configured such that a projector body 10 is covered with a casing 11 that is a substantially rectangular parallelepiped, and an optical system, an electric circuit system, and the like are accommodated inside the casing 11.

  As shown in FIG. 1A, the front surface 11a of the housing 11 is provided with a projection lens 12 as a projection optical system. In addition, an input operation unit (not shown) is provided on the upper surface 11 c of the housing 11. As shown in FIG. 1B, the rear surface 11b of the housing 11 is provided with a connection terminal group 13 including power supply terminals. The power supply terminal supplies a commercial power supply such as AC100V from the outside to the projector 1 by connecting a power cable (not shown).

  The connection terminal group 13 is provided with a plurality of connection terminals connected to external devices via connection cables in addition to the power supply terminals. Examples of the connection terminal include a computer image input terminal, a computer audio input terminal, a video image input terminal, a video audio input terminal, a LAN (Local Area Network) terminal, a USB (Universal Serial Bus) terminal, and the like.

  As shown in FIG. 1B, on the bottom surface 11 d of the housing 11, three legs 15 that are installed in the housing 11 and support the projector main body 10 are installed. Two leg portions 15 are provided on the front surface 11a side, and one leg portion 15 is provided on the back surface 11b side. Here, the two leg portions 15 on the front surface 11a side are referred to as leg portions 15a and 15b, and the one leg portion 15 on the back surface 11b side is referred to as a leg portion 15c.

  In the present embodiment, the two leg portions 15a and 15b on the front surface 11a side are installed so as to be extendable in the vertical direction, and the projection angle can be adjusted by adjusting the installation angle of the projector body 10. In addition, one leg portion 15c on the back surface 11b side is fixed to the casing 11 by screwing to the casing 11, and the installation angle is not adjusted. The detailed operation of the leg 15c will be described later.

  Moreover, as shown in FIG.1 (b), in the back surface 11b of the housing | casing 11, the surface part 16 dented from the back surface 11b one step over the perimeter is formed.

  2 is a schematic perspective view showing the housing cover 2, FIG. 2 (a) is a perspective view of the housing cover 2 seen from the front surface 20a side, and FIG. 2 (b) is a housing. It is the perspective view which looked at the cover 2 from the back surface 20b side. 3 is a perspective view showing a state in which the housing cover 2 is attached to the projector 1, and FIG. 3A is a perspective view seen from the front surface 11a side of the projector 1, and FIG. ) Is a perspective view seen from the back surface 20b side of the housing cover 2. FIG. FIG. 4 is a schematic cross-sectional view showing a state in which the housing cover 2 is attached to the housing 11. With reference to FIGS. 2 to 4, a configuration of the housing cover 2 and a method of attaching the housing cover 2 to the projector 1 will be described.

  The housing cover 2 is a thing that covers and hides various connection cables connected to the projector 1, and improves the appearance of the projector 1. As shown in FIG. 3, the housing cover 2 is attached to a position facing the back surface 11 b of the projector 1 (housing 11) where the connection terminal group 13 is installed. The case cover 2 is configured to have an outer shape that smoothly connects to the outer shape of the case 11 when attached to the projector 1.

  As shown in FIG. 2, the housing cover 2 is composed of a cover body 20 formed in a substantially box shape with an open front surface 20 a serving as one end surface. The cover body 20 is formed of synthetic resin or the like in the present embodiment, but is not limited to synthetic resin.

  On the bottom surface 20 d of the cover body 20, a power cable connected to the connection terminal group 13 including the power terminals and an insertion portion 21 through which the connection cable is inserted are formed. The insertion portion 21 has a shape cut out in a substantially rectangular shape on the bottom surface 20 d corresponding to the installation position of the connection terminal group 13. In addition, the connection terminal group 13 of this embodiment is installed in the left end part side of the back surface 11b of the housing | casing 11, and the insertion part 21 is also installed in the left end part side of the bottom face 20d.

  When the cover body 2 is attached to the housing 11 of the projector 1, the housing cover 2 is surrounded by the insertion portion 21 between the cover body 20 and the housing 11 as shown in FIG. A substantially rectangular opening is formed. Then, as described above, the connection cable connected to the connection terminal group 13 is inserted into the opening (insertion portion 21).

  One fixing portion 22 extending forward is formed at the approximate center of the bottom surface 20d of the cover body 20 in the left-right direction. The fixing portion 22 is formed in a plate shape and includes a notch portion 23 that is open at one end side. The notch 23 is substantially U-shaped in the present embodiment. Moreover, the fixing | fixed part 22 is equipped with the two protrusions 24 for a latching as a latching part which protrudes below in the edge part of one end side.

  Engaging protrusions 26 as engaging portions that protrude toward the bottom surface 20d are formed on the left and right sides of the front surface 20a, which is the front end portion of the upper surface 20c of the cover body 20.

  As shown in FIG. 4, the leg portion 15 c has a head portion 151 that comes into contact with an installation surface on which the projector 1 is installed, and a screw portion 152 as a shaft portion configured by a male screw. A first nut 18 composed of a female screw is installed inside the casing 11 in the casing 11 that fixes the leg portion 15c. Therefore, the leg portion 15c can be fixed to the housing 11 by rotating the screw portion 152 into the first nut 18 and rotating.

  Further, as shown in FIG. 4, on the back surface 11b of the housing 11, an engagement receiving portion 17 for receiving the engagement projection 26 is provided on the bottom surface 11d side at a position corresponding to the engagement projection 26 of the housing cover 2. It is formed in a groove shape.

Hereinafter, a method of attaching and fixing the housing cover 2 to the housing 11 of the projector 1 will be described.
First, the leg portion 15 c is rotated so that the screw portion 152 is exposed to some extent from the bottom surface 11 d of the housing 11. Next, after the front surface 20a of the housing cover 2 is opposed to the rear surface 11b of the projector 1, the housing cover 2 is moved forward, and the fixing portion 22 is inserted into the leg portion 15c. More specifically, the fixed portion 22 (the notch portion 23) is inserted so that the opened portion on one end side sandwiches the exposed screw portion 152 of the leg portion 15c. In conjunction with this insertion, the engaging protrusion 26 of the housing cover 2 is engaged with the engaging receiving portion 17 of the housing 11.

  Further, by inserting the fixing portion 22, the front surface 20 a of the housing cover 2 is brought into contact with the surface portion 16 of the housing 11. Due to this contact, the forward movement of the housing cover 2 is limited. In the present embodiment, the screw portion 152 of the leg portion 15c is inserted into the notch portion 23 of the fixing portion 22 by the operation of inserting the fixing portion 22 into the leg portion 15c.

Next, the fixing portion 22 is sandwiched between the housing 11 (bottom surface 11d) and the leg portion 15c (head 151) by rotating the leg portion 15c in a direction to be screwed into the housing 11. The head 151 of the leg 15c can be easily turned with the fingertip of the user.
By this series of operations, the housing cover 2 is attached and fixed to the housing 11.

  When the housing cover 2 is attached to the housing 11, the locking protrusion 24 of the fixing portion 22 has a slight gap with the head 151 on the front side surface of the head 151 of the leg portion 15 c. It is in a state to be located. The locking protrusion 24 is locked to the leg portion 15c (head 151) in the direction opposite to the insertion direction of the fixing portion 22 (in this embodiment, the direction from the back surface 11b to the front surface 11a of the projector 1). This prevents the case cover 2 from being detached from the case 11 (projector 1) when an external force or the like in the direction opposite to the insertion direction is applied to the case cover 2 attached to the projector 1. .

  The head portion 151 of the leg portion 15c is a receiving portion for locking that is locked to a locking projection 24 as a locking portion installed on the fixing portion 22 in a direction opposite to the insertion direction of the fixing portion 22. It is functioning. Further, the operation for preventing the housing cover 2 from being detached from the housing 11 includes the locking operation of the locking protrusion 24 and the head 151 (locking receiving portion), the engagement protrusion 26 and the engagement receiving member. This is performed in cooperation with the engaging operation of the portion 17.

  In addition, when removing the housing cover 2 from the housing 11, it can be easily removed by performing the procedure reverse to the attachment method described above.

According to the embodiment described above, the following effects can be obtained.
The housing cover 2 of the present embodiment includes a cover main body 20 and a fixing portion 22, and the fixing portion 22 is fixed using leg portions 15 c that are installed in the housing 11 and support the projector main body 10. In this way, by using the leg portion 15c installed in the housing 11, it is not necessary to install a mechanism that is likely to be complicated, such as a coil spring or an engaging member, in the cover main body 20 as in the past. Further, unlike the prior art, the housing cover 2 can be attached to the housing 11 without requiring an attachment tool (driver or the like) for tightening a fixing screw or the like. Accordingly, the configuration of the housing cover 2 can be simplified, and the housing cover 2 can be easily attached to the housing 11, so that the mounting workability can be improved. Conversely, the detachability of removing the housing cover 2 from the housing 11 can also be improved.

  Since the housing cover 2 of the present embodiment has a simple configuration, the manufacturing cost can be reduced.

  The housing cover 2 according to the present embodiment can be attached and detached particularly when the projector 1 is suspended from the ceiling, using the leg portion 15c whose position is easily understood. Can be improved. In this embodiment, the ceiling-mounted installation means that the projector 1 is installed on the ceiling by turning the projector 1 upside down.

  According to the housing cover 2 of the present embodiment, since it is not necessary to install a complicated mechanism for fixing in the housing 11, the aesthetic appearance of the projector 1 can be obtained even when the housing cover 2 is not used. The housing cover 2 that can prevent the damage is realized.

  The housing cover 2 of the present embodiment has the fixing portion 22 inserted into the leg portion 15c from one end side where the notch portion 23 is opened so as to sandwich the screw portion 152 as the shaft portion of the leg portion 15c. Thus, it is possible to attach and fix to the housing 11, so that the attaching operation can be performed stably and easily and reliably.

  The housing cover 2 of the present embodiment can securely fix the housing cover 2 to the housing 11 by the fixing portion 22 being sandwiched between the housing 11 and the legs 15c.

  When the housing cover 2 according to the present embodiment is attached to the housing 11, the housing cover 2 includes an engaging protrusion 24 as an engaging portion and a head 151 of a leg portion 15 c as an engaging receiving portion. The position in the opposite direction can be fixed. Therefore, it is possible to prevent the housing cover 2 from being detached from the housing 11 by locking the housing cover 2 from moving in the direction opposite to the insertion direction. Thereby, when the external impact is applied to the housing cover 2 from the direction opposite to the insertion direction, the housing cover 2 can be prevented from being detached from the housing 11.

  The housing cover 2 according to the present embodiment efficiently uses the leg portion 15c by providing one fixing portion 22 corresponding to one leg portion 15c installed on the rear surface 11b side of the projector 1. be able to.

  Since the projector 1 according to the present embodiment includes the above-described housing cover 2, the function of adjusting the installation angle of the projector main body 10 and the fixing portion 22 are sandwiched between the housing 11 with a simple configuration. Thus, the housing cover 2 can be fixed.

  According to the projector 1 of the present embodiment, the leg portion 15c functions as a receiving portion for locking, so that the position in the direction opposite to the insertion direction of the housing cover 2 can be reliably fixed. It is possible to prevent the cover 2 from being detached from the housing 11.

  Since the projector 1 according to the present embodiment uses the legs 15c to fix the housing cover 2, there is no need to install a complicated fixing mechanism on the housing 11, and the housing cover 2 is removed for use. In this case, the aesthetic appearance of the projector 1 can be prevented from being impaired.

Since the projector 1 according to the present embodiment includes the housing cover 2 described above, the same effects as those of the housing cover 2 described above can be achieved.
(Second Embodiment)

  FIG. 5 is a schematic perspective view showing the housing cover 4 according to the second embodiment, and FIG. 5A is a perspective view of the housing cover 4 viewed from the front surface 20a side. b) is a perspective view of the housing cover 4 as seen from the back surface 20b side. 6 is a perspective view showing a state in which the housing cover 4 is attached to the projector 3. FIG. 6A is a perspective view seen from the front surface 11a side of the projector 3, and FIG. ) Is a perspective view seen from the back surface 20b side of the housing cover 4. FIG. FIG. 7 is a schematic cross-sectional view showing a state where the housing cover 4 is attached to the housing 11. A configuration of the housing cover 4 and a method of attaching the housing cover 4 to the projector 3 will be described with reference to FIGS.

  The housing cover 4 of the present embodiment differs from the housing cover 2 of the first embodiment in the following points. Compared with the position of the insertion part 21 of the first embodiment being on the left end side, the position of the insertion part 41 of the present embodiment is slightly different in the right direction. Moreover, compared with the one fixed part 22 of 1st Embodiment being installed in the center part of the bottom face 20d, the fixed part 42 of this embodiment is a total of two one each in the left-right direction of the bottom face 20d. It is different that it is installed. Others are configured similarly to the housing cover 2 of the first embodiment. In addition, the same code | symbol is attached to the part comprised similarly, and description is abbreviate | omitted. Details of the housing cover 4 will be described later.

  The projector 3 of the present embodiment is different from the projector 1 of the first embodiment in the following points. Compared to the case where two leg portions 15 of the first embodiment are installed on the front surface 11a side and one leg portion 15b on the back surface 11b side, the leg portions 15 of the present embodiment have one leg portion 15 on the front surface 11a side and the back surface. It is different that two are installed on the 11b side. In addition, the connection terminal group 13 of the present embodiment is slightly moved to the right side and installed, compared to the connection terminal group 13 of the first embodiment being installed on the left end side on the back surface 11b side. Is different. Other configurations are the same as those of the projector 1 of the first embodiment. In addition, the same code | symbol is attached to the part comprised similarly, and description is abbreviate | omitted. Details of the projector 3 will be described later.

  As shown in FIG. 6, in the projector 3 of the present embodiment, as described above, one leg portion 15 that is installed in the housing 11 and supports the projector body 10 is installed on the front surface 11a side, and on the rear surface 11b side. Two are installed. Here, one leg portion 15 on the front surface 11a side is referred to as a leg portion 15d, and two leg portions 15 on the back surface 11b side are referred to as leg portions 15e and 15f.

  In the present embodiment, the three leg portions 15d, 15e, and 15f are installed so as to be extendable in the vertical direction, and the projection angle can be adjusted by adjusting the installation angle of the projector body 10. The detailed configuration and operation of the two leg portions 15e and 15f will be described later.

  As shown in FIG. 5, in the housing cover 4 of the present embodiment, the bottom surface 20 d of the cover body 20 is inserted with a power cable and a connection cable connected to the connection terminal group 13 including the power terminal on the projector 3 side. An insertion portion 41 is formed. The insertion portion 41 has a shape that is cut out in a substantially rectangular shape on the bottom surface 20 d corresponding to the installation position of the connection terminal group 13.

  As shown in FIG. 5, two fixing portions 42 extending forward are formed in the left-right direction of the bottom surface 20 d of the cover body 20. The fixing portion 42 is formed in a plate shape and includes a cutout portion 43 that is open at one end side. The notch 43 is substantially U-shaped in this embodiment. The fixing portion 42 includes two locking projections 44 as locking portions protruding upward at an end portion on one end side.

With reference to FIG. 7, a method of attaching and fixing the housing cover 4 to the housing 11 of the projector 3 will be described.
First, the three leg portions 15d, 15e, and 15f are rotated to adjust the installation angle (projection angle) of the projector body 10. At this time, adjustment is made so that the screw portions 152 of the two leg portions 15e and 15f on the back surface 11b side are exposed to some extent from the bottom surface 11d.

  Here, the leg portions 15e and 15f of the present embodiment are configured to have a second nut 153 as a nut portion in addition to the head portion 151 and the screw portion 152. The second nut 153 is threadedly engaged with the screw portion 152 and rotates to move the screw portion 152. Each of the second nuts 153 is screwed into the screw portion 152 to perform an operation of sandwiching the fixing portion 42 of the housing cover 4 with the housing 11. Therefore, when the installation angle is adjusted by the leg portions 15e and 15f, the screw portion 152 between the second nut 153 and the housing 11 is adjusted so as to be exposed.

  Next, after the front surface 20a of the housing cover 4 faces the back surface 11b of the projector 3, the housing cover 4 is moved forward, and the fixing portions 42 are inserted into the leg portions 15e and 15f. Specifically, the fixed portion 42 (the notch portion 43) is inserted so that the opened portion on one end side sandwiches the exposed screw portions 152 of the leg portions 15e and 15f. In conjunction with this insertion, the engagement protrusion 26 of the housing cover 4 is engaged with the engagement receiving portion 17 of the housing 11.

  Further, by inserting the fixing portion 42, the front surface 20 a of the housing cover 4 is brought into contact with the surface portion 16 of the housing 11. Due to this contact, the forward movement of the housing cover 4 is limited. In the present embodiment, the screw portions 152 of the leg portions 15e and 15f are inserted into the notch portions 43 of the fixing portion 42 by the operation of inserting the two fixing portions 42 into the leg portions 15e and 15f, respectively. ing.

  Here, on the bottom surface 11 d of the housing 11, a locking receiving portion 19 that receives the locking protrusion 44 formed on the fixing portion 42 of the housing cover 4 is formed to be depressed by one step. When the forward movement of the housing cover 4 is restricted, the locking projection 44 is locked to the locking receiving portion 19.

Next, as indicated by an arrow in FIG. 7, the second nut 153 is rotated so as to move in the direction of the casing 11, thereby fixing the fixing portion 42 to the casing 11 (bottom surface 11d) and the legs 15e, 15f. (Second nut 153). In addition, each 2nd nut 153 of the leg parts 15e and 15f can be easily rotated with a user's fingertip.
By this series of operations, the housing cover 4 is attached and fixed to the housing 11.

  When the housing cover 4 is attached to the housing 11, the locking projection 44 is locked by the locking receiving portion 19 in the direction opposite to the insertion direction of the fixing portion 42. This prevents the case cover 4 from being detached from the case 11 (projector 3) when an external force or the like in the direction opposite to the insertion direction is applied to the case cover 4 attached to the projector 3. To do. The operation for preventing the housing cover 4 from being detached from the housing 11 includes the locking operation of the locking projection 44 and the locking receiving portion 19 and the engagement operation of the engaging projection 26 and the engaging receiving portion 17. It is done in cooperation with.

  In addition, when removing the cover 4 for housing | casing from the housing | casing 11, it can remove easily by performing in the reverse procedure to the attachment method.

  According to the above-described embodiment, the same effects as those of the first embodiment can be obtained, and the following effects can be obtained.

  In the housing cover 4 of the present embodiment, the fixing portion 42 is sandwiched between the housing 11 and the second nuts 153 of the legs 15e and 15f, so that the housing cover 4 is securely attached to the housing 11. Can be fixed to.

The housing cover 4 of the present embodiment has the leg portions 15e and 15f having the second nut 153, so that the leg portions 15e and 15f are expanded and contracted to adjust the installation angle of the projector body 10, and then the second nut By rotating 153, the fixing portion 42 can be clamped and fixed between the housing 11.
(Third embodiment)

  FIG. 8 is a schematic perspective view showing the housing cover 6 according to the third embodiment, and FIG. 8A is a perspective view of the housing cover 6 viewed from the front surface 20a side. b) is a perspective view of the housing cover 6 as seen from the back surface 20b side. 9 is a perspective view showing a state in which the housing cover 6 is attached to the projector 5. FIG. 9A is a perspective view seen from the front surface 11a side of the projector 5, and FIG. ) Is a perspective view seen from the back surface 20b side of the housing cover 6. FIG. FIG. 10 is a schematic cross-sectional view showing a state in which the housing cover 6 is attached to the housing 11. A configuration of the housing cover 6 and a method of attaching the housing cover 6 to the projector 5 will be described with reference to FIGS.

  The housing cover 6 of the present embodiment differs from the housing cover 4 of the second embodiment in the following points. Compared to the notch 43 of the fixing part 42 of the second embodiment, the shape of the notch 63 of the fixing part 62 of the present embodiment is different. Further, compared to the fixing portion 42 of the second embodiment having the locking projection 44, the fixing portion 62 of the present embodiment is different in that it does not have the locking projection. Others are configured in the same manner as the housing cover 4 of the second embodiment. In addition, the same code | symbol is attached to the part comprised similarly, and description is abbreviate | omitted. Details of the housing cover 6 will be described later.

  The projector 5 according to the present embodiment differs from the projector 3 according to the second embodiment in the following points. Compared with the leg portions 15e and 15f of the second embodiment having the second nut 153, the leg portions 15h and 15i of the present embodiment differ from each other in that they do not have the second nut. Moreover, the receiving part 19 for latching was formed in the housing | casing 11 of 2nd Embodiment, However, The receiving part for latching is not formed in the housing | casing 11 of this embodiment. Others are configured similarly to the projector 3 of the second embodiment. In addition, the same code | symbol is attached to the part comprised similarly, and description is abbreviate | omitted. Details of the projector 5 will be described later.

  As shown in FIG. 9, in the projector 5 of the present embodiment, one leg portion 15 that is installed in the housing 11 and supports the projector main body 10 is provided on the front surface 11a side, like the leg portion 15 of the second embodiment. Two are installed on the back surface 11b side. Here, one leg portion 15 on the front surface 11a side is referred to as a leg portion 15g, and two leg portions 15 on the back surface 11b side are referred to as leg portions 15h and 15i.

  In the present embodiment, the three leg portions 15g, 15h, and 15i are installed so as to be extendable in the vertical direction, similarly to the leg portion 15 of the second embodiment, and by adjusting the installation angle of the projector main body 10, The projection angle can be adjusted.

  As shown in FIG. 8, two fixing parts 62 extending forward are formed in the left-right direction of the bottom surface 20 d of the cover body 20. The fixing part 62 is formed in a plate shape and includes a notch part 63 that is open at one end side.

  In the present embodiment, the notch 63 has an opening 631, a first notch 632, and a second notch 633 from one end side. In this embodiment, the width of the opening 631 on one end side is narrower than the width of the opening in the second embodiment. The width of the opening 631 is smaller than the outer diameter of the screw portion 152 of the leg portions 15h and 15i. Further, in the opening 631, when the fixing portion 62 is inserted into the leg portions 15h and 15i, tapered portions 631a for smoothly inserting the screw portion 152 are formed at both tip portions.

  The first notch 632 connected to the opening 631 is a part that is formed with an inner diameter substantially the same as the outer diameter of the screw part 152 and allows the screw part 152 to be inserted therethrough. Further, the second notch portion 633 connected to the first notch portion 632 has a stress to allow the opening portion 631 to be inserted through the screw portion 152 when the fixing portion 62 is inserted into the leg portions 15h and 15i. It is a portion formed so as to have elasticity in the surface direction by being dispersed.

A method of attaching and fixing the housing cover 6 to the housing 11 of the projector 5 will be described with reference to FIG.
First, the two leg portions 15h and 15i are rotated so that the screw portions 152 of the two leg portions 15h and 15i are exposed to some extent from the bottom surface 11d. Next, after the front surface 20a of the housing cover 6 faces the back surface 11b of the projector 5, the housing cover 6 is moved forward, and the fixing portions 62 are inserted into the leg portions 15h and 15i, respectively.

  In detail, the fixing portion 62 is inserted into the leg portions 15h and 15i. Specifically, the opening portion 631 on one end side of the fixing portion 62 (notch portion 63) has the screw portions 152 exposed from the leg portions 15h and 15i, respectively. Insert so as to pinch. At this time, the screw portion 152 abuts on the tapered portion 631a of the opening portion 631, and expands the opening portion 631 in the surface direction and moves into the opening portion 631. In conjunction with this insertion, the engagement protrusion 26 of the housing cover 6 is engaged with the engagement receiving portion 17 of the housing 11.

Further, by inserting the fixing portion 62, the front surface 20 a of the housing cover 6 is brought into contact with the surface portion 16 of the housing 11. Due to this contact, the forward movement of the housing cover 6 is restricted. Further, by this insertion operation, the screw portion 152 that has moved into the opening 631 moves to the first cutout portion 632. In the present embodiment, the screw portions 152 of the leg portions 15h and 15i are respectively inserted into the first cutout portions 632 of the fixing portion 62 by inserting the two fixing portions 62 into the leg portions 15h and 15i. It is inserted.
By this series of operations, the housing cover 6 is attached and fixed to the housing 11.

  The three legs 15g, 15h, and 15i can adjust the installation angle (projection angle) of the projector body 10 by rotating. In the projector 5 of the present embodiment, the adjustment can be performed in a state where the fixing portions 62 of the housing cover 6 are inserted into the leg portions 15h and 15i (the housing cover 6 is installed). Conversely, after adjusting the installation angle (projection angle) by rotating the leg portions 15h and 15i, the fixing portion 62 of the housing cover 6 can be inserted (the housing cover 6 is installed). .

  In the present embodiment, when the housing cover 6 is attached to the housing 11, the notch 63 (opening 631) of the fixing portion 62 has a leg portion 15 h, which is opposite to the insertion direction of the fixing portion 62. The case cover 6 is attached to the case 11 (when an external force or the like in the direction opposite to the insertion direction is applied to the case cover 6 attached to the projector 5 by being engaged with the screw portion 152 of 15i. It is prevented from coming off from the projector 5).

  In this case, the screw portions 152 of the leg portions 15h and 15i function as locking receiving portions that lock in the direction opposite to the direction in which the fixing portion 62 is inserted. Further, the operation for preventing the housing cover 6 from being detached from the housing 11 includes the locking operation of the notch 63 (opening 631) and the screw portion 152 (locking receiving portion), and the engagement protrusion 26. And in cooperation with the engaging operation of the engaging receiving portion 17.

  In addition, when removing the housing cover 6 from the housing 11, it can be easily removed by performing a procedure reverse to the attachment method described above.

According to the embodiment described above, the following effects can be obtained.
In the housing cover 6 of the present embodiment, the fixing portion 62 is inserted into the leg portions 15h and 15i (the screw portions 152 of the leg portions 15h and 15i are inserted into the first cutout portions 632 of the fixing portion 62). Thus, it can be fixed to the housing 11. Accordingly, the leg portion 15c (head portion 151) of the first embodiment and the leg portions 15e and 15f (second nut 153) of the second embodiment are rotated, and the fixing portions 22 and 42 are sandwiched between the housing 11 and the leg portion 15c. Even if it does not make it, the cover 6 for housing | casing can be fixed. Therefore, the configuration of the housing cover 6 (fixing portion 62) can be simplified, and the workability of attaching the housing cover 6 to the housing 11 can be further improved.

  The housing cover 6 of the present embodiment can be fixed to the housing 11 by inserting the screw portions 152 of the leg portions 15h and 15i into the notch portion 63 (first notch portion 632) of the fixing portion 62. Further, the installation angle (projection angle) of the projector main body 10 by the legs 15h and 15i can be adjusted before or after the housing cover 6 is attached. For this reason, it is possible to improve the efficiency of both the operation of attaching the housing cover 6 to the housing 11 and the projection angle adjusting operation.

  Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the scope of the invention. A modification will be described below.

  The locking protrusion 24 of the housing cover 2 (fixing portion 22) of the first embodiment protrudes downward, but the locking of the housing cover 4 (fixing portion 42) of the second embodiment. As in the case of the projection 44, the receiving portion for locking may be installed on the housing 11 by projecting upward. Conversely, the locking protrusion 44 of the housing cover 4 (fixed portion 42) of the second embodiment is replaced with the locking protrusion 24 of the housing cover 2 (fixed portion 22) of the first embodiment. Similarly, the second nut 153 may be projected downward and used as a receiving portion for locking.

  In the first and second embodiments, the locking protrusions 24 and 44 (the locking portion) and the locking receiving portion 19 of the fixing portions 22 and 42 need not be installed. In that case, any configuration may be used as long as the fixing portions 22 and 42 are sandwiched between the casings 11 by the heads 151 of the leg portions 15c and the second nuts 153 of the leg portions 15e and 15f.

  The cutout portions 43 of the housing cover 4 (fixing portion 42) of the second embodiment are each formed in a substantially U shape, and screw portions 152 are inserted through the cutout portions 43, respectively. However, the notch 43 is not limited to this shape. For example, a shape in which two cutout portions formed in the two fixed portions 42 are substantially U-shaped may be used. Then, such a notch part may be inserted into the notch part by inserting the notch part into the leg parts 15e and 15f so as to sandwich the screw part 152, respectively.

  In the first to third embodiments, the case covers 2, 4 and 6 in the case where the connection terminal group 13 is installed on the back surface 11b side have been described. However, the connection terminal group 13 is not on the back surface 11b side, The present invention can also be applied when it is installed on the left side surface. When installing the housing cover on the left and right side surfaces of the projector housing, the leg installed on the projector uses at least one of the front leg and the rear 11b side leg, The housing cover may be installed with the same configuration as in the first to third embodiments.

  In the first to third embodiments, the housing covers 2, 4, 6 are attached to the projectors 1, 3, 5 to cover various connection cables connected to the projectors 1, 3, 5. However, the present invention is not limited to a projector, and a casing cover may be attached to other electronic devices using legs, and various connection cables connected to the electronic devices may be covered.

  In the first to third embodiments, the housing covers 2, 4, 6 are used to cover various connection cables connected to the projectors 1, 3, 5. However, the housing cover is not limited to covering the cable, and may be used to cover a component exposed on the outer surface of the housing. For example, it may be used as a cover of a light source device that is detachably installed in a projector. Further, the housing cover may be provided with a filter that prevents dust from entering when air for cooling the inside of the projector is sucked, and the housing cover may be installed at the intake port. .

  DESCRIPTION OF SYMBOLS 1,3,5 ... Projector, 2, 4, 6 ... Cover for housing | casing, 10 ... Main body of projector, 11 ... Housing | casing, 13 ... Connection terminal group, 15 ... Leg part, 20 ... Cover main body, 21, 41 ... Insertion Part, 22, 42, 62 ... fixing part, 23, 43, 63 ... notch part, 152 ... screw part, 153 ... second nut.

Claims (9)

A cover for a housing that is attached to a housing of an electronic device having a connection terminal connected to an external device via a connection cable, and covers the connection terminal,
An approximately box-shaped cover body having an insertion portion through which the connection cable is inserted, and one end face of which is open;
A housing cover, comprising: a fixing portion that is installed in the cover body and is fixed by using a leg portion that is installed in the housing and supports the electronic device body. The housing cover according to claim 1,
The case cover is characterized in that the fixing portion includes a notch portion that is open at one end side and is inserted from the one end side so as to sandwich the shaft portion of the leg portion. The housing cover according to claim 1 or 2,
The housing cover, wherein the fixing portion is sandwiched between the housing and the leg portion. The cover for a housing according to any one of claims 1 to 3,
The fixing portion includes an engaging portion that is engaged with at least one of the housing and the leg portion in a direction opposite to an insertion direction of the fixing portion at an end portion on the one end side. Cover for housing. The cover for a housing according to any one of claims 1 to 4,
The cover main body has one or two fixing portions. A light modulation device that modulates a light beam emitted from a light source according to image information;
A housing in which the light modulation device is disposed;
A projector comprising the housing cover according to any one of claims 1 to 5. The projector according to claim 6, wherein
At least one of the housing and the leg includes a receiving portion for locking that locks the locking portion installed in the fixing portion in a direction opposite to the insertion direction of the fixing portion. Projector featuring. The projector according to claim 6 or 7, wherein
The leg is installed in the casing so as to be extendable and contractible,
The projector, wherein the fixed portion is sandwiched between the leg portion and the casing. The projector according to claim 8, wherein
The leg portion includes a screw portion that constitutes the shaft portion, and a nut portion that is screwed into the screw portion and clamps the fixing portion between the case and the housing. projector.

Images