JP2006324150A - Cabinet for lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cabinet for a low-cost lighting fixture with its number of man-hour and components reduced. <P>SOLUTION: The cabinet is provided with a cabinet main body 100 with an opening, a lid body 200 blocking the opening 110 of the cabinet main body 100, and a latch mechanism 300 fitted at one end in a width direction of the cabinet main body 100 for holding the lid body 200 in a blocked state. The latch mechanism 300 is provided with a base part 310 fitted to one end in a width direction of the cabinet main body 100, a hook part 320 for locking the lid body 200, and a coupling part 330 with one end fitted to the base part 310 and the other fitted to the hook part 320 in free rotation each, and the hook part 320 is provided with a contact tool 321a at its tip part capable of being in plane contact with the lid body 200. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a housing for a lighting fixture such as a tunnel lighting fixture.

  A housing of a conventional lighting device for a tunnel is attached to a housing body having an opening, a lid that closes the opening, a packing that is interposed between the lid and the housing, and a housing. And a latch mechanism for holding the lid in a closed state (see Patent Document 1).

  In some cases, as shown in FIG. 7, the entire lid 1 is made of tempered glass. In this case, the locking tool 1a is attached to the lid 1, while the tip of the hook portion 2a of the latch mechanism 2 has a hook shape that can be locked with the locking tool 1a.

JP 2004-165129 A

  However, a screw hole for attaching the locking tool 1a to the lid 1 made of tempered glass must be provided, and the locking tool 1a must be attached to the screw hole. For this reason, the processing man-hours and the number of parts of a housing | casing have increased.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a housing for an inexpensive lighting apparatus by reducing the number of processing steps and the number of parts of the housing. .

  In order to solve the above-described problems, a housing for a lighting apparatus according to the present invention is attached to a housing body having an opening and has a light-transmitting resin lid that closes the opening in a closed state. A housing for a lighting fixture having a latch mechanism for holding the base, the latch mechanism being attached to the housing main body, being rotatably attached to the base portion, and closing the lid A hook portion that is locked in a state, and a contact tool that can come into surface contact with the lid body is provided at a tip portion of the hook portion.

  The latch mechanism has a connecting portion in which a base portion is attached to one end portion and a hook portion is rotatably attached to the other end portion, and when the hook portion is located at a locking position, The attachment location with the connection portion is positioned below the attachment location between the base portion and the connection portion.

  The base part and the connecting part may be provided with engaging means that engage with each other when the hook part is located at the locking position. Specifically, an engagement hole and an engagement groove are provided in the base portion, and a protrusion engaged with the engagement hole and the engagement groove is provided in the connection portion. Or while providing a protrusion in a base part, the engaging hole and engagement groove which can engage the said protrusion are provided in a connection part.

  In the case of the housing for a lighting fixture according to claim 1 of the present invention, the abutment provided at the tip of the hook portion of the latch mechanism comes into surface contact with the lid body and locks the lid body in a closed state. Therefore, unlike the conventional example, there is no need to provide a screw hole in the lid and attach a locking tool. Therefore, the number of processing steps for the housing can be reduced, and the number of parts can be reduced. As a result, cost reduction can be achieved. And since it is not necessary to provide a screw hole in a cover body, as a result, it became the state which does not cause the strength fall of a cover body conventionally.

  In the case of the housing for a lighting fixture according to claim 2 of the present invention, the latch mechanism has a connecting portion in which a base portion is attached to one end portion and a hook portion is rotatably attached to the other end portion. . In other words, since the hook portion can be rotated via the connecting portion, the rotation path of the hook portion can be increased as compared with the case where the hook portion is directly attached to the base portion. Therefore, the hook portion can be easily locked and detached.

  In the case of the housing for a lighting fixture according to claim 3 of the present invention, the base portion and the connecting portion are provided with engaging means that engage with each other when the hook portion is located at the locking position. The state where the hook portion is located at the locking position can be maintained. Therefore, it is possible to prevent the hook portion from being inadvertently released.

  Hereinafter, the housing | casing for lighting fixtures concerning embodiment of this invention is demonstrated, referring drawings. FIG. 1 is a schematic cross-sectional view of one end portion of a housing for a lighting fixture according to an embodiment of the present invention, and is a diagram showing a latching state of a latch mechanism of the housing, and FIG. FIG. 3 is a schematic cross-sectional view of one end portion showing a non-locking state of the latch mechanism of the casing, FIG. 3 is a schematic front view of the latch mechanism of the casing, and FIG. 4 is a latch mechanism of the casing; (A) is a schematic front view, (b) is a schematic plan view, (c) is a schematic side view, and FIG. 5 shows a hook portion of the latch mechanism of the same housing. (A) is a schematic front view, (b) is a schematic plan view, (c) is a schematic side view, and FIG. 6 is a diagram showing a connecting portion of a latch mechanism of the same housing. (A) is a schematic front view, (b) is a schematic plan view, and (c) is a schematic side view.

  1 and 2 includes a housing main body 100 having an opening, a lid 200 that closes the opening 110 of the housing main body 100, and one end portion in the width direction of the housing main body 100. The latch mechanism 300 is provided, which is attached and holds the lid 200 in a closed state. That is, the case here includes not only the case main body 110 but also the lid 200 and the latch mechanism 300. Hereinafter, each part will be described in detail.

  The housing main body 100 is a box-shaped box having a substantially concave shape in cross-section obtained by press-molding a metal plate. A light source (not shown) is provided inside the housing body 100 toward the opening 110. The housing body 100 includes a bent portion 120 in which the peripheral edge of the opening 110 is bent in an approximately L shape toward the outside. A rubber packing 400 is bonded on the bent portion 120 so as to be interposed between the lid body 200 and the hermetic seal.

  The lid 200 is a plate material made of tempered glass, and is rotatably attached to the other end portion in the width direction of the housing body 100 by a hinge fitting (not shown). That is, the lid 200 is attached to the housing body 100 so that the opening 110 can be opened and closed.

  As shown in FIG. 3, the latch mechanism 300 includes a base portion 310 attached to one end portion in the width direction of the housing body 100, a hook portion 320 for locking the lid 200, and one end portion of the base portion 310. In addition, the other end portion has a connection portion 330 that is rotatably attached to the hook portion 320.

  As shown in FIGS. 3 and 4, the base portion 310 has a shape in which both end portions of a substantially inverted trapezoidal plate material are bent at a right angle. At both ends of the base portion 310, first shaft holes 311 and 311 communicating with the first shaft holes 331 and 331 (see FIG. 6) of the connecting portion 330, and protrusions 333 and 333 (see FIG. 6), engagement holes 312 and 312 (engagement means) are provided. Screw holes 313 and 313 for screwing to the housing main body 100 are provided at the center of the base portion 310. Note that screw holes on the housing body 100 side communicating with the screw holes 313 and 313 are not shown.

  As shown in FIGS. 3 and 5, the hook portion 320 has a substantially U-shaped hook portion main body 321 and a plate-like shaft protruding at right angles from both ends in the width direction of the hook portion main body 321. It has a shape having body parts 322 and 322. The hook portion main body 321 has a distal end portion bent in a substantially L shape, and a contact tool 321a is fitted to the distal end portion. The contact tool 321a is a resin molded product such as nylon and has a flat bottom surface as shown in FIG. 5 (c). That is, it can slide on the lid 200 and come into surface contact with the lid 200. The shaft body portions 322 and 322 are provided with second shaft holes 322 a and 322 a communicating with the second shaft holes 332 and 332 (see FIG. 6) of the connecting portion 330.

  As shown in FIGS. 3 and 6, the connecting portion 330 is a member having a substantially inverted concave shape in plan view, and first shaft holes 331 and 331 are provided at one end in the length direction of both ends thereof. It has been. Second shaft holes 332 and 332 are provided at the other end in the length direction of both ends of the connecting portion 330. Further, at both ends of the connecting portion 330, projections 333 and 333 (engagement means) are projected inwardly between the first and second shaft holes 331, 331, 332, and 332.

  The first connecting rod 340 is inserted into the first shaft holes 311 and 311 of the base portion 310 and the first shaft holes 331 and 331 of the connecting portion 330. Thereby, the connection part 330 is attached to the base part 310 so that rotation is possible. On the other hand, the second connecting rod 350 is inserted into the second shaft portions 332 and 332 of the connecting portion 330 and the second shaft holes 322 a and 322 a of the hook portion 320. As a result, the hook portion 320 can rotate via the connecting portion 330 from the locking position (see FIG. 1) where the lid body 200 is locked to the non-locking position (see FIG. 2) where the locking of the lid body 200 is released. Attached to.

  Hereinafter, the usage method of this latch mechanism will be described, and the operation of each part will be described. First, in a state where the opening of the housing body 100 is closed with the lid 200, the hook portion 320 positioned at the non-locking position is gripped and moved to the locking position.

  Then, the hook portion 320 rotates about the second connecting rod 350, and in conjunction with this, the connecting portion 330 rotates about the first connecting rod 340. At this time, the hook part 320 rotates largely compared to the case where it is directly attached to the base part 310 via the connecting part 330. Thereby, the contact tool 321a of the hook part 320 is brought into contact with the lid 200 from above.

  Thereafter, the rear end portion of the hook portion 320 is pushed into the base portion 310 side. Then, the attachment part of the hook part 320 and the connection part 330 is located below the attachment part of the base part 310 and the connection part 330 (refer FIG. 1), and the contact tool 321a of the hook part 320 is a cover body. It slides over 200 and makes surface contact with the lid 200. As a result, the lid 200 is sandwiched between the abutting tool 321a of the hook portion 320 and the packing 400 and held in a closed state.

  At this time, the protrusions 333 and 333 of the connecting portion 330 are engaged with the engagement holes 312 and 312 of the base portion 310, whereby the hook portion 320 is held at the locking position.

  When releasing the locking of the hook part 320, the hook part 320 is grasped and pulled away from the base part 310. Then, the engagement between the protrusions 333 and 333 of the connecting portion 330 and the engagement holes 312 and 312 of the base portion 310 is released. Then, the locking portion 420 rotates about the second shaft rod 442, and in conjunction with this, the connecting portion 430 rotates about the first shaft rod 441. In this process, the contact tool 321a of the hook portion 320 slides on the lid body 200 and leaves the lid body 200. In this way, the hook portion 320 is unlocked and is positioned at the non-locking position.

  In the case of such a housing for a lighting fixture, the abutment tool 321a of the hook portion 320 is brought into surface contact with the lid body 200, so that the lid body 200 is provided with a screw hole and locked as in the conventional example. There is no need to install tools. Therefore, it is possible to reduce the number of man-hours for processing the casing, and it is possible to reduce the number of parts, and as a result, it is possible to reduce the cost. And since it is not necessary to provide a screw hole in the cover body 200, as a result, it became the state which does not cause the strength fall of the cover body 200 conventionally.

  The casing is attached to a casing main body having an opening, and is used for a lighting apparatus having a latch mechanism for holding a light-transmitting resin lid that closes the opening in a closed state. The latch mechanism includes a base portion attached to the housing body and a hook portion that is rotatably attached to the base portion and locks the lid body in a closed state. The design may be changed in any way as long as a contact tool that can come into surface contact with the lid is provided at the tip of the hook.

  The case body 100 is a press-formed product of a metal plate, but any case may be used as long as it is a box-shaped body.

  The lid 200 is made of tempered glass, but any material may be used as long as it is a plate made of a resin having translucency.

  The connecting portion 330 can be omitted. In this case, the hook portion 320 is attached to the base portion 310 so as to be directly rotatable. Further, the protrusions 333 and 333 of the connecting portion 330 can be engaging holes or engaging grooves. In this case, a protrusion engaged with the engagement hole or the engagement groove is provided on the base portion. Note that the protrusions 333 and 333 and the engagement holes 312 and 312 are optional.

  The base part 310 and the hook part 320 may have any shape as long as the above functions can be realized.

  The abutting tool 321a is not limited to a resin made of nylon, and any one may be used as long as it can slide on the lid 200 and come into surface contact with the lid 200.

  In the above-described embodiment, the case has been described as the case of the lighting device for the tunnel, but needless to say, the case can be applied to the case of other electrical equipment having a resin lid and having a sealing property. .

It is a schematic sectional drawing of the one end part of the housing | casing for lighting fixtures concerning embodiment of this invention, Comprising: It is a figure which shows the latching state of the latch mechanism of the said housing | casing. It is a schematic sectional drawing of the one end part of the housing | casing, Comprising: It is a figure which shows the non-locking state of the latch mechanism of the said housing | casing. It is a schematic front view of the latch mechanism of the housing. It is a figure which shows the base part of the latch mechanism of the housing | casing, Comprising: (a) is a schematic front view, (b) is a schematic plan view, (c) is a schematic side view. It is a figure which shows the hook part of the latch mechanism of the housing | casing, Comprising: (a) is a schematic front view, (b) is a schematic plan view, (c) is a schematic side view. It is a figure which shows the connection part of the latch mechanism of the housing | casing, Comprising: (a) is a schematic front view, (b) is a schematic plan view, (c) is a schematic side view. It is a schematic diagram which shows the latching state of the hook part of the housing | casing for lighting fixtures of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Case main body 200 Lid body 300 Latch mechanism 310 Base part 320 Hook part 321a Contact tool 330 Connection part

Claims (3)

In a housing for a lighting fixture provided with a latch mechanism that is attached to a housing body having an opening and holds a transparent resin lid that closes the opening in a closed state,
The latch mechanism has a base portion attached to the housing body and a hook portion rotatably attached to the base portion and locking the lid body in a closed state. A housing for a lighting fixture, wherein a contact tool capable of being in surface contact with the lid is provided on the part.   2. The housing for a lighting apparatus according to claim 1, wherein the latch mechanism has a connecting portion in which a base portion is rotatably attached to one end portion and a hook portion is rotatably attached to the other end portion. When the is located at the locking position, the mounting portion between the hook portion and the connecting portion is positioned below the mounting portion between the base portion and the connecting portion. Enclosure.   3. The housing for a lighting fixture according to claim 2, wherein the base portion and the connecting portion are provided with engaging means that engage with each other when the hook portion is located at the locking position. A housing for lighting fixtures.

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