JP2008027714A - Housing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a housing structure capable of easily attaching a light-guide member to an edge part where two flat plates structuring the housing cross each other. <P>SOLUTION: A main part 40 of a light-guide member 4 from inside of a housing 1 is inserted into a translucent window 5, and a protruded part 41 is rotated toward a separating direction from a front wall 11 inner surface with the protruded part 41 in a state in contact with the front wall 11 inner surface to have arm parts 42, 42 in contact with a side wall 10 inner surface. From there, if the main part 40 and the contacting part 41 are moved in parallel into the housing 1 with the arm parts 42, 42 in a state in contact with the side wall 10 inner surface, and the main part 40 is clenched with the translucent window 5, locking projections 43, 43 of the tips of the arm parts 42, 42 are locked with locking parts 17, 19, so that there is no need of strictly matching an insertion angle of the light guide member to the translucent window like a conventional one. As a result, the light-guide member 4 can be easily attached to an edge part where two flat plates (side plate 10, front plate 11) structuring of the housing 1 cross each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, a light emitter for display is housed in a housing formed in a box shape, and a light guide member is fitted into a light-transmitting window provided in the housing so that light emitted from the light emitter is emitted by the light guide member. The present invention relates to a housing structure that guides light outside the housing.

As this type of housing structure, for example, there is a housing structure of a display device with a lamp described in Patent Document 1. What is described in Patent Document 1 includes a light emitting diode, a housing that is disposed on the front side of the light emitting diode and has a display surface that is inclined with respect to the optical axis of the light emitting diode, and a transparent member or a translucent member. A plane formed by any member in a substantially columnar shape and disposed on the front side of the light emitting diode with the substantially columnar central axis substantially aligned with the optical axis, and one end surface facing the light emitting diode being substantially perpendicular to the optical axis A light-emitting diode-facing surface, and a light-guiding unit having a light-projecting portion whose other end surface is exposed from the display surface and faces the outside. An acute angle is formed with respect to the light emitting diode facing surface, and light that is incident on the light guide portion from the light emitting diode facing surface substantially parallel to the central axis is refracted and transmitted in a direction substantially perpendicular to the display surface. Also It is.
Japanese Patent Laid-Open No. 11-7815

  In the conventional example described in Patent Document 1, the light guide unit is attached to the housing by inserting the columnar portion of the light guide unit at the same position and angle with respect to the through hole provided in the flat display surface on the front surface of the housing. However, when the light guide unit is fitted to a light-transmitting window penetrating the two plane plates at the ridge where the two plane plates constituting the housing intersect, the insertion angle with respect to the light-transmitting window is particularly large. There was a problem that it was difficult to match.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a housing structure in which a light guide member can be easily attached to a ridge portion where two flat plates constituting the housing intersect. It is in.

  In order to achieve the above object, a light emitting body for display is housed in a box-shaped housing, and a light guide member is fitted into a light transmitting window provided in the housing. In the housing structure in which light emitted from the light emitter is guided out of the housing by the light guide member, a light transmitting window is formed across the two flat plates at a ridge portion where the two flat plates constituting the housing intersect. The light guide member penetrates through the light-transmitting window, and a main portion that fits into the light-transmitting window, and a tip portion of the main portion that protrudes from the main portion and passes through the light-transmitting window from the housing are outside the housing. A projecting portion that contacts the inner surface of one flat plate in the advanced state, an arm portion projecting along the inner surface of the other flat plate from the main portion or the projecting portion, and an inner surface of the other flat plate provided at the tip of the arm portion A protruding locking portion and a locking protrusion for locking, and the arm portion In a state where the part is in contact with the inner surface of one flat plate, it is separated from the inner surface of the other flat plate, and when the protrusion is rotated in a direction away from the inner surface of one flat plate, When the main part and the abutting part are translated into the housing while being in contact with the inner surface of the flat plate, and the main part is fitted to the light-transmitting window, the locking protrusion at the tip is locked with the locking part. It is characterized by.

  The invention of claim 2 is characterized in that, in the invention of claim 1, a plurality of light transmitting windows are passed through the ridge portion, and a light shielding wall is provided between the light transmitting windows in the housing.

  According to the first aspect of the present invention, the main portion of the light guide member is inserted from the inside of the housing into the light transmission window, and in a direction away from the inner surface of the flat plate in a state where the protruding portion is in contact with the inner surface of one flat plate. The projecting part is rotated to bring the arm part into contact with the inner surface of the other flat plate, and from there, the main part and the contact part are translated into the housing with the arm part being in contact with the inner surface of the other flat plate. Then, if the main part is fitted to the translucent window, the locking projection at the tip of the arm is locked with the locking part protruding from the inner surface of the other flat plate. There is no need to strictly match the insertion angle of the light guide member, and as a result, the light guide member can be easily attached to the ridge portion where the two flat plates constituting the housing intersect.

  According to the invention of claim 2, since the light shielding wall is provided between the plurality of light transmitting windows penetrating the ridge portion of the housing, the light to be radiated out of the housing through one light transmitting window leaks and is adjacent to the light transmitting wall. Radiation outside the housing through the transparent window can be prevented.

  Hereinafter, an embodiment in which the present invention is applied to a communication device called a net adapter will be described in detail with reference to the drawings.

  The communication device (net adapter) in the present embodiment wirelessly communicates with a monitoring device that monitors the detection status of a security sensor for crime prevention or disaster prevention installed in a dwelling unit, and monitoring received by wireless communication from the monitoring device Information (abnormality detection information such as the occurrence of a fire or suspicious person intrusion) is sent to a center server installed in a remote location via a network line (public telephone line, CATV line, optical fiber line, etc.) laid in the dwelling unit The monitoring information is transmitted to a communication terminal (for example, a mobile phone having an Internet connection function) carried by a resident of the dwelling unit via the center server, and power is supplied to the housing 1 Lights up (emits light) when wireless communication is performed between the monitor for power monitoring and the monitoring device. A display unit for credit monitoring is provided.

  As shown in FIG. 3, the housing 1 is formed in a flat, substantially rectangular parallelepiped shape by connecting a body 2 made of a synthetic resin molded product and a cover (not shown). The body 2 is formed in a box shape with the lower side surface in FIG. 3 opened, and includes a circuit for realizing the functions of the communication device as described above, a display unit for power supply monitoring, and a display unit for reception monitoring. The printed wiring board 3 on which the light emitters (light emitting diodes) LD1 and LD2 and the like are mounted is housed inside and the cover formed in a flat plate shape is joined to close the opening surface. Here, the upper plane plate in FIG. 3 is referred to as a side plate 10, the plane plate that intersects the side plate 10 on the right side is referred to as a front plate 11, and the plane plate that intersects the side plate 10 and the front plate 11 on the near side is referred to as a bottom plate 12. And two translucent windows 5 and 5 are provided through the side plate 10 and the front plate 11 at the ridge where the side plate 10 and the front plate 11 intersect. Note that a total of four mounting holes 6 that are provided in the bottom plate 12 so as to be arranged in two rows in the front-rear direction and the left-right direction are used to mount a support base (not shown) that supports the housing 1 when the housing 1 is installed with the bottom plate 12 facing down. Is for.

  As shown in FIG. 1, the light-transmitting windows 5 and 5 are formed in such a manner that a narrow slot penetrating the side plate 10 and a slot having the same width penetrating the front plate 11 are joined at the ridge portion. Has been. Inside the body 2, as shown in FIG. 1 (a), a substantially L-shaped light shielding wall 13 that rises in parallel with the bottom plate 12 is projected from the side plate 10 between the two light transmission windows 5, 5. Further, plate-like standing walls 14, 14 that protrude from the side plate 10 are opposed to the light-shielding wall 13 with the light-transmitting windows 5, 5 interposed therebetween and rise parallel to the bottom plate 12. The leading ends of the standing walls 14, 14 protrude from the leading ends of the light-transmitting windows 5, 5 along the side wall 10 and the front plate 11, respectively. Thin plate-like temporary fixing portions 15 and 15 that are substantially parallel to the wall 11 are formed. The temporary fixing portions 15, 15 are partially provided with inclined surfaces 15 a that are inclined so that the projecting dimensions from the standing walls 14, 14 are gradually shortened as they approach the opening surface of the body 2. Further, extending portions 16, 16 having a shorter projecting dimension from the side wall 10 than the standing walls 14, 14 are extended from the ends of the standing walls 14, 14, and a light shielding wall is provided at the ends of these extending portions 16, 16. A thin plate-like locking portion 17, 17 that protrudes in a direction approaching 13 and is substantially parallel to the front wall 11 is provided. In addition, the front end part of the latching | locking parts 17 and 17 is provided with the inclined surface 17a which inclines so that the protrusion dimension from the extension parts 16 and 16 may become short gradually as it approaches the translucent windows 5 and 5. FIG. .

  On the other hand, the light blocking wall 13 is provided with temporary fixing portions 18, 18 protruding at positions facing the temporary fixing portions 15, 15 provided at the tips of the standing walls 14, 14. These temporary fixing portions 18 and 18 are in a mirror image relationship with the temporary fixing portions 15 and 15 of the standing walls 14 and 14, and the projecting dimension from the light shielding wall 13 is gradually shortened as it approaches the opening surface of the body 2. An inclined surface 18a inclined in the direction is partially provided. Further, the front end of the light shielding wall 13 along the side wall 10 protrudes in a direction approaching the upright walls 14, 14, faces the locking portions 17, 17 at the ends of the extended portions 16, 16, and is substantially the same as the front wall 11. Thin plate-like locking portions 19, 19 that are parallel to each other are projected. Note that the front end portions of the locking portions 19 and 19 are provided with inclined surfaces 19a that are inclined in a direction in which the projecting dimension from the light shielding wall 13 gradually decreases as the light transmitting windows 5 and 5 are approached.

  The light guide member 4 is made of a synthetic resin molded product having translucency, and as shown in FIGS. 1 and 3, a main part 40 that can be inserted into the translucent window 5 and fits into the translucent window 5, The front end portion of the main portion 40 that protrudes from the portion 40 and passes from the inside of the housing 1 (body 2) to the translucent window 5 has advanced to the outside of the housing 1 (body 2) on the inner surface of one flat plate (front plate 11). A projecting portion 41 that abuts, a pair of arm portions 42, 42 projecting from the projecting portion 41 along the inner surface of the other flat plate (side wall 10), and the locking portions 17 provided at the tips of the arm portions 42, 42. 19 and locking protrusions 43 and 43 that are locked separately. The main portion 40 has a flat, substantially rectangular plate shape, and a flat, substantially trapezoidal plate-like protruding portion 41 protrudes from a corner portion of the main portion 40 in a direction substantially along a diagonal line. The arm portions 42, 42 are in the form of narrow strips, and the longitudinal direction thereof is substantially parallel to the side end surface of the main portion 40 that is flush with the outer surface of the side wall 10 when fitted to the translucent window 5. As shown in FIG. The locking projection 43 provided at the tip of the arm portion 42 is formed in a substantially triangular prism shape that protrudes in a direction away from the other arm portion 42 and whose protruding dimension becomes shorter as it approaches the tip. In addition, a quadrangular prism-shaped protrusion 44 protrudes from a corner portion on the side away from the arm part 42 at the tip of the protrusion 41.

  A procedure for attaching the light guide member 4 to the light transmitting window 5 of the housing 1 (body 2) having the above-described structure will be described with reference to FIGS.

  First, as shown in FIGS. 1A and 1E, the main portion 40 and the arm portions 42 and 42 are tilted with respect to the inner surfaces of the side wall 10 and the front wall 11, and the tilted state is maintained from the inside of the body 2. The main portion 40 of the light guide member 4 is inserted into the translucent window 5. Here, a guide surface 5a that is inclined outward from the side wall 10 toward the ridge portion is formed at the end of the translucent window 5 on the inner surface side of the side wall 10, and the side end surface of the main portion 40 is formed on the guide surface 5a. If the main part 40 and the arm parts 42 and 42 are inclined with respect to the inner surfaces of the side wall 10 and the front wall 11 as described above, the main part 40 of the light guide member 4 can be easily penetrated. It can be inserted into the optical window 5 (see FIGS. 1B and 1F). Here, in a state where the light guide member 4 is inserted into the translucent window 5 until the protruding portion 41 comes into contact with the inner surface of the front wall 11 of the body 2, as shown in FIG. It protrudes out of the body 2 through the translucent window 5. Further, the arm portions 42 and 42 are separated from the inner surface of the side wall 10 in a state where the protruding portion 41 is in contact with the inner surface of the front wall 11 as described above.

  Next, the light guide member 4 is rotated in a direction in which the protruding portion 41 is separated from the inner surface of the front wall 11 (counterclockwise direction in FIG. 1F) to bring the arm portions 42 and 42 into contact with the inner surface of the side wall 10. (See FIG. 1 (g)). At this time, the arm portions 42 and 42 are guided by the inclined surfaces 15a and 18a, respectively, and enter between the temporary fixing portions 15 and 18 facing each other, but the interval between the temporary fixing portions 15 and 18 is the arm portions 42 and 42. The arm portions 42 and 42 that are in contact with the inner surface of the side wall 10 are bent in a direction approaching each other, and due to the restoring force of the bent arm portions 42 and 42. The light guide member 4 is temporarily fixed to the temporary fixing portions 15 and 18 (see FIG. 1C). Further, in the temporarily fixed state, the tip end portion of the main portion 40 protrudes from the outer surface of the front wall 11 through the transparent window 5 (see FIG. 1G and FIG. 2).

  Subsequently, the light guide member 4 is translated into the body 2 in a state where the arm portions 42 and 42 are in contact with the inner surface of the side wall 10 by pushing the tip portion of the main portion 40 from the outside of the body 2. Then, the locking projections 43 and 43 at the tips of the arm portions 42 and 42 are brought into contact with the locking portions 17 and 19, and are guided by the inclined surfaces 17 a and 19 a of the locking portions 17 and 19. When the locking projections 43 and 43 get over the tips of the locking portions 17 and 19 in a short time, the arm portions 42 and 42 that have been bent so far return to a direction away from each other and are locked. The light guide member 4 is fixed to the body 2 in a state in which 43 and 43 are engaged with the engaging portions 17 and 19 and the main portion 40 is fitted to the light transmitting window 5 (FIG. 1 (d). ), (H)).

  The light guide member 4 attached to the housing 1 (body 2) as described above takes in the light emitted from the light emitting diode LD1 or LD2 mounted on the printed wiring board 3 from the front end surface of the protrusion 41, and the protrusion 41. In addition, the inside of the main portion 40 is reflected and radiated from the side end face of the main portion 40 exposed from the transparent window 5 to the outside of the housing 1. In addition, the gap between the printed wiring board 3 and the light guide member 4 on the front wall 11 side is narrowed by the protrusion 44 protruding from the corner portion at the tip of the protrusion 41, and from one display section to the other display section. Suppression of light is suppressed.

  As described above, according to the present embodiment, the main portion 40 of the light guide member 4 is inserted into the translucent window 5 from the inside of the housing 1, and the protruding portion 41 is brought into contact with the inner surface of one flat plate (front wall 11). In this state, the projecting portion 41 is rotated in a direction away from the inner surface of the front wall 11 to bring the arm portions 42 and 42 into contact with the inner surface of the other flat plate (side wall 10). When the main portion 40 and the contact portion 41 are translated into the housing 1 and the main portion 40 is fitted to the light-transmitting window 5 in a state in which the contact portion 42 is in contact, the locking projections 43 at the tips of the arm portions 42 and 42 are obtained. , 43 are engaged with the engaging portions 17 and 19, so that it is not necessary to strictly match the insertion angle of the light guide member with respect to the light transmitting window as in the conventional example. The light guide member 4 can be easily attached to the ridge where the flat plates (side plate 10, front plate 11) intersect. . Further, since the light shielding wall 13 is provided between the plurality of (two in this embodiment) light transmitting windows 5 and 5 penetrating the ridge portion of the housing 1, the light is emitted to the outside of the housing 1 through the one light transmitting window 5. It is possible to prevent light to be leaked and radiate out of the housing 1 through the adjacent transparent window 5.

(A)-(h) is explanatory drawing for demonstrating the attachment procedure of the light guide member to the housing in this embodiment. It is the perspective view which abbreviate | omitted partially showing the body in the middle of attachment in the same as the above, and a light guide member. It is a disassembled perspective view in which a part was omitted.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 2 Body 4 Light guide member 5 Translucent window 10 Side plate (plane plate)
11 Front plate (plane plate)
13 Shading Wall 14 Standing Wall 17 Locking Part 19 Locking Part 40 Main Part 41 Projecting Part 42 Arm Part 43 Locking Projection

Claims (2)

A light emitter for display is housed inside a box-shaped housing, and a light guide member is fitted into a light-transmitting window provided in the housing to guide light emitted from the light emitter to the outside of the housing. In the housing structure designed to shine,
Penetrating the translucent window across the two plane plates at the ridge where the two plane plates constituting the housing intersect,
The light guide member can be inserted into the light transmissive window, and a main portion that fits into the light transmissive window, and a tip portion of the main portion that protrudes from the main portion and is inserted from the housing into the light transmissive window has advanced out of the housing. A protrusion that contacts the inner surface of one flat plate, an arm that protrudes from the main or protruding portion along the inner surface of the other flat plate, and a protrusion that is provided at the tip of the arm and protrudes from the inner surface of the other flat plate. A locking projection for locking with the locking portion;
The arm portion is separated from the inner surface of the other flat plate when the projecting portion is in contact with the inner surface of one flat plate, and the inner surface of the other flat plate is rotated when the projecting portion is rotated away from the inner surface of the one flat plate. When the main portion and the abutting portion are translated into the housing and the main portion is fitted to the light-transmitting window in a state where the main portion and the abutting portion are in contact with the inner surface of the other flat plate, Housing structure characterized by locking with.   The housing structure according to claim 1, wherein a plurality of light transmitting windows are passed through the ridge portion, and a light shielding wall is provided between the light transmitting windows in the housing.

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