JP6136259B2 - Case seal structure and ring-shaped seal member - Google Patents

Description

  The present invention relates to a case sealing structure and a ring-shaped sealing member that seals between a case main body and a case lid in a case including a case main body and a case lid that closes an opening of the case main body.

  As a case seal structure and ring-shaped seal member, an opening cover is attached to the opening of the instrument body via a hinge so that it can be opened and closed, and a waterproof packing is provided over the entire periphery of the opening of the instrument body. A device is known that seals between the instrument body and the opening cover when the opening cover is closed (see, for example, Patent Document 1).

JP 2005-327748 A

In the seal structure of Patent Document 1, since the waterproof packing is attached to the peripheral edge of the opening of the instrument main body by adhesive, there are many cases in which the adhesive is applied to the instrument main body or the waterproof packing and the adhesive is dried. Since time is required, there is a problem in terms of workability. In addition, if the opening of the instrument body is large and the waterproof packing is long, and if the waterproof packing is made of a soft material in order to improve the sealing performance, the seal portion of the waterproof packing should be accurately positioned at a predetermined location. It is difficult to secure sealability.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a case sealing structure and a ring-shaped sealing member capable of improving workability and easily ensuring sealing performance. Yes.

To achieve the above object, the present invention is a peripheral portion of the opening of the case body, and a stepped portion along the periphery, the I multiplexer stage overlap the peripheral edge of the case cover along the outside of the stepped portion and a peripheral wall projecting downward from parts, the stepped portion is disposed a ring-shaped seal member made of soft resin, is brought into contact from below the peripheral portion of the case lid to said sealing member on said stepped portion Te, and the case body, and said case cover which is arranged below the casing body constitutes a casing that binds watertight, the sealing member includes a sealing portion disposed on the stepped portion, the seal portion A holding portion that is connected and locked to the peripheral wall, the holding portion being an inner wall that hits the inner peripheral surface of the peripheral wall, an outer wall that hits the outer peripheral surface of the peripheral wall, and a lower end portion of each of the inner and outer walls The bottom wall that connects the inner wall, the outer And a groove is formed on each inner surface of the bottom wall, the inner wall is connected to the seal portion, the bottom wall is disposed below a lower end portion of the peripheral wall, and a drain hole is provided in the bottom wall. The punch hole is located below the seal surface of the seal portion .

  According to the present invention, the holding portion includes a groove having a substantially U-shaped cross section, and the peripheral wall is locked to the groove.

  In the invention, it is preferable that the seal portion is provided with a concave groove on a surface facing the peripheral portion of the case lid and contacting the stepped portion.

  Further, in the present invention, the peripheral edge portion of the opening of the case body is located in substantially the same plane, and one edge portion thereof is formed out of the plane, and the seal portion is disposed along the stepped portion. And it arrange | positions along the said one edge part which remove | deviated from the said surface.

  Further, the present invention is characterized in that the case is for a lamp, and the case main body and the case lid are a main body side of the lamp and a glove.

In the invention it is preferable that the holding section is characterized Rukoto provided in a pair on the sealing member.
In the invention, it is preferable that the peripheral wall includes a straight portion and a bending portion, and the holding portion is fitted to the straight portion and the bending portion.
Further, the present invention is characterized in that the outer wall is formed thicker toward the tip and the inner surface is inclined so as to approach the inner wall, thereby narrowing the opening side of the groove.

In order to achieve the above object, the present invention provides a ring-shaped seal portion made of a soft resin, which is disposed at a step portion along the peripheral edge portion of the opening of the case body, and the peripheral edge portion of the case lid is applied from below. A seal portion for watertightly coupling the case main body and the case lid disposed below the case main body, and a ring-shaped holding portion made of a soft resin, and integrally connected to the seal portion A holding portion that is overlapped with a peripheral portion of the case lid along the outer side of the step portion and that is locked to a peripheral wall of the case body that protrudes downward from the step portion , and the holding portion includes: It consists of an inner wall that hits the inner peripheral surface of the peripheral wall, an outer wall that hits the outer peripheral surface of the peripheral wall, and a bottom wall that connects the respective lower ends of the inner wall and outer wall, and grooves are formed on the inner surfaces of the inner wall, outer wall, and bottom wall. The inner wall is formed on the seal portion. Is continued, the is the bottom wall disposed below the lower end of the peripheral wall, said bottom wall drain hole is provided, the drain hole is characterized in that located below the sealing surface of the seal portion And

  Further, the present invention is characterized in that the seal portion and the holding portion are integrally molded with resin.

  According to the present invention, the peripheral portion of the opening of the case body is provided with a step portion along the peripheral portion and a protruding peripheral wall that overlaps with the peripheral portion of the case lid along the outer side of the step portion, and the step portion is soft. A resin ring-shaped seal member is arranged, the peripheral part of the case lid is brought into contact with the seal member on the stepped portion, and the case main body and the case lid are connected in a watertight manner. The seal member is arranged on the stepped portion. And a holding portion connected to the sealing portion and locked to the peripheral wall. According to this configuration, by locking the holding portion of the seal member to the peripheral wall, the seal member can be easily assembled to the peripheral portion of the case body, and workability can be improved. In particular, even when the sealing member is long or when the sealing member is made softer in order to improve the sealing performance, there is no concern that the sealing portion of the sealing member is displaced with respect to the stepped portion of the case body. The part can be easily positioned, and this also improves the workability. Therefore, workability can be improved and sealing performance can be easily ensured.

It is sectional drawing which shows the lighting fixture of 1st Embodiment which concerns on this invention. It is a perspective view which shows a lighting fixture. It is a bottom view which shows a lighting fixture. It is a perspective view which shows the case main body with which the sealing member was mounted | worn. It is a disassembled perspective view which shows a case main body and a sealing member. It is a bottom view which shows a sealing member. It is the VII-VII sectional view taken on the line of FIG. It is a 1st operation | movement figure which shows the assembly | attachment point of a sealing member. It is a 2nd operation | movement figure which shows the assembly | attachment point of a sealing member. It is an effect | action figure explaining the sealing performance of a sealing member. It is an effect | action figure explaining the effect | action of the drain hole of a sealing member. It is a perspective view which shows the lighting fixture of 2nd Embodiment which concerns on this invention.

Embodiments of the present invention will be described below with reference to the drawings.
<First Embodiment>
FIG. 1 is a cross-sectional view showing a lighting apparatus 10 according to a first embodiment of the present invention.
The luminaire 10 is used as, for example, a security light provided on a street or the like, and includes a case 11 and an LED board 12, a diffusion plate 13, and a power supply unit 14 accommodated in the case 11.
The case 11 includes a case main body 16 made of an aluminum alloy die-casting provided at an upper portion, and a distal end portion via a support shaft 17 at a front end portion 16A of the case main body 16 in order to close an opening 16B formed at the lower portion of the case main body 16. The light-transmitting glove 18 to which 18A is swingably attached, and a seal member 20 that seals between the case body 16 and the glove 18 are included.

The LED board 12 includes a base plate 23 and a plurality of LED modules 24 attached to the lower surface of the base plate 23, and the LED module 24 includes a plurality of LEDs 26.
The diffusion plate 13 is a component that is arranged separately from the LED board 12 and diffuses the light of the LED 26.
The power supply unit 14 is connected to each LED module 24 via a conductor 27 and connected to a commercial power source via conductors 28 and 28, and converts a commercial power source from an AC to a DC and a constant voltage. And a control unit for controlling lighting of the LED 26.

A plurality of inwardly projecting portions 16 e are integrally formed on the inner surface of the case body 16, and a support plate 31 is attached to the inwardly projecting portions 16 e with a plurality of screws 32, and the power supply unit 14 is attached to the support plate 31. Are attached with a plurality of screws 33, and the base plate 23 of the LED board 12 is attached to the power supply unit 14.
Further, the diffusion plate 13 is attached to the support plate 31 via a stay 34. Reference numeral 36 denotes an attachment plate attached to the base portion 16C of the case body 16 for attaching the lighting fixture 10 to a utility pole, etc., and 37 denotes an attachment screw for attaching the base portion 18C of the globe 18 to the base portion 16C of the case body 16. is there.

FIG. 2 is a perspective view showing the lighting apparatus 10 and shows a state where the globe 18 is opened.
The case 11 of the luminaire 10 has a substantially cylindrical shape in which the tip 11A has a substantially spherical shape and the base 11C has a substantially flat end surface. The case main body 16 and the globe 18 are substantially half up and down. It has the shape made into.
A seal member 20 is provided on the edge of the case main body 16 over the entire circumference. The seal member 20 seals between the case main body 16 and the globe 18 so that the LED 26, the power supply unit 14 and the like are exposed to water. Is prevented.
The base portion 16C of the case main body 16 has a lower protruding portion 16f whose edge protrudes downward from the edge of the portion other than the base portion 16C of the case main body 16, and the globe 18 is formed on the lower protruding portion 16f from below. The base portion 18 </ b> C is fitted through the seal member 20. Reference numeral 16g denotes a screw hole formed in the case body 16 so that the mounting screw 37 (see FIG. 1) is screwed in, and 18e denotes a screw insertion hole formed in the globe 18 so that the mounting screw 37 can be passed therethrough. It is.

FIG. 3 is a bottom view showing the lighting apparatus 10.
The case main body 16 is provided with a peripheral wall 16h at a portion other than the base portion 16C (see FIG. 2) so as to surround the globe 18 attached to the case main body 16. The peripheral wall 16h includes a curved portion 16j which is provided on the distal end portion 16A side and is curved in a substantially arc shape, linear portions 16k and 16k extending in parallel from the end portion of the curved portion 16j, and ends of these linear portions 16k and 16k. It is comprised from the curved part 16m, 16n extended in S shape connected to a part, and reverse S shape.

  Holding portions 20d and 20d formed on the seal member 20 are fitted into the curved portion 16j and the straight portion 16k of the peripheral wall 16h, respectively, and a plurality of drain holes 20e are formed in the holding portions 20d and 20d, respectively. Yes.

  The seal member 20 includes a tip seal member 20A attached to the tip 11A side of the case 11, specifically, a portion excluding the base 11C of the case 11, and a base seal member 20C (see FIG. 2) attached to the base 11C. Is a part made of a soft resin, for example, silicon rubber, integrally molded.

FIG. 4 is a perspective view showing the case main body 16 to which the seal member 20 is attached, and shows a state in which the seal member 20 is attached to the peripheral wall 16 h and the downward projecting portion 16 f of the case main body 16.
FIG. 5 is an exploded perspective view showing the case main body 16 and the seal member 20, and shows a state where the seal member 20 is moved upward from the mounting portion of the case main body 16 as it is.
4 and 5, the case main body 16 and the seal member 20 are shown upside down from the actual use state of the lighting fixture 10 (see FIG. 1).

  4 and 5, the case body 16 has a step portion 16p formed on the inner side of the peripheral wall 16h and over the entire circumference so as to be lower than the peripheral wall 16h. The step portion 16p includes a tip end step portion 16q formed on the tip end portion 16A side of the case main body 16, specifically, a portion excluding the base portion 16C of the case main body 16, and a base step portion 16r formed on the base portion 16C.

  The tip end step portion 16q includes a curved step portion 16s provided on the tip end portion 16A side and curved in a substantially arc shape, and linear step portions 16t and 16t (one linear step portion) extending in parallel from the end portion of the curve step portion 16s. Only the portion 16t is illustrated), and curved step portions 16u and 16v extending in an S shape and an inverted S shape connected to the ends of the linear step portions 16t and 16t. The base step portion 16r is a substantially circular connecting between the rising step portions 16w and 16w rising upward from the curved step portions 16u and 16v (only one rising step portion 16w is shown) and the upper end portions of these rising step portions 16w and 16w. The rear curved step portion 16x is curved in an arc shape.

  The seal member 20 includes a seal portion 20f formed over the entire circumference disposed on the step portion 16p of the case body 16. The seal portion 20f is provided on each portion of the step portion 16p of the case body 16, that is, on the curved step portion 16s, the straight step portions 16t and 16t, the curved step portions 16u and 16v, the standing step portions 16w and 16w, and the rear curved step portion 16x. The seal portions 20s, 20t, 20t, 20u, 20v, 20w, 20w, and 20x are integrally provided.

FIG. 6 is a bottom view showing the seal member 20.
The seal portion 20f of the seal member 20 is a portion that contacts the peripheral wall 18h (see FIG. 2) of the globe 18 (see FIG. 2), and is composed of a tip seal member 20A and a base seal member 20C. , Seal portions 20s, 20t, 20t, 20u, and 20v, and the base seal member 20C includes seal portions 20w, 20w, and 20x.

  Of the tip seal member 20A, the seal portions 20s, 20t, and 20t are formed with holding portions 20d and 20d adjacent to each other. The seal portions 20w, 20w, and 20x are each formed with a linear protrusion 20h that protrudes from the base surface 20g and extends in the longitudinal direction at the center of the width, and the linear protrusion 20h is a base 18C of the globe 18 (see FIG. 2). Sealed by hitting the inner surface. Since the linear protrusion 20h is formed to be narrower than the base surface 20g, the linear protrusion 20h is easily crushed when the base 18C of the globe 18 is applied, and the sealing performance can be improved. Reference numeral 20j denotes a screw insertion hole formed in the seal portion 20x so as to pass the mounting screw 37 (see FIG. 1).

7 is a cross-sectional view taken along line VII-VII in FIG.
The seal member 20 is bent at a substantially right angle with respect to the holding portion 20d on the inner side of the upper end portion of the holding portion 20d and a holding portion 20d having a U-shaped cross section that is fitted and locked to the peripheral wall 16h of the case body 16. And a vertical wall portion 20k formed at the inner end portion of the seal portion 20f.

  The holding portion 20d includes an inner wall 20m that hits the inner peripheral surface 16y of the peripheral wall 16h, an outer wall 20n that hits the outer peripheral surface 16z of the peripheral wall 16h, and a bottom wall 20p that connects the end portions of the inner wall 20m and the outer wall 20n. A groove 21a is formed on each inner surface of the inner wall 20m, outer wall 20n, and bottom wall 20p. The outer wall 20n is formed such that the upper end side is thicker than the lower end side (bottom wall 20p side) and, as will be described later, the inner surface 20q is inclined so as to approach the inner wall 20m side. In the state where the peripheral wall 16h is locked to the holding portion 20d, the outer wall 20n is bent with respect to the inner wall 20m and the bottom wall 20p and elastic force is generated to tighten the peripheral wall 16h. Become.

  The seal portion 20f is disposed on the step portion 16p of the case body 16, and a groove 20r is formed on the surface of the seal portion 20f facing the step portion 16p so as to extend in the longitudinal direction. The concave groove 20r makes the seal portion 20f easily crushed when the seal portion 20f is sandwiched between the step portion 16p of the case body 16 and the peripheral wall 18h (see FIG. 2) of the globe 18 (see FIG. 2). It is a part for improving. A flat seal surface 21b is formed on the side of the seal portion 20f opposite to the concave groove 20r.

FIG. 8 is a first operation view showing the assembly procedure of the seal member 20.
Since the sealing member 20 is formed of soft silicon rubber and has a relatively large perimeter, if the sealing member 20 is gripped with both hands when assembled to the peripheral edge of the case body 16, the case will be greatly bent downward. It is difficult to position the seal portion 20f on the step portion 16p provided on the peripheral portion of the main body 16. For example, if the seal member is relatively hard, the shape is almost maintained, and the seal member can be easily positioned on the peripheral edge.

  Therefore, in the seal member 20 of the present embodiment, the holding portions 20d and 20d are provided on a part of the entire circumference of the seal member 20, and the holding portions 20d and 20d are assembled by being locked to the peripheral wall 16h of the case body 16. It is made a structure. With such a structure, the holding portions 20d and 20d can be easily locked to the peripheral wall 16h, and as a result, the seal portion 20f can be easily positioned on the step portion 16p.

  Further, by providing the two holding portions 20d and 20d, the holding portion 20d can be gripped with both hands and fitted to the peripheral wall 16h, and workability can be further improved. Furthermore, by holding the holding portions 20d and 20d up to the curved portion 16j of the peripheral wall 16h, the peripheral walls of the holding portions 20d and 20d are simply compared to fitting the holding portions 20d and 20d only to the straight portions 16k and 16k. Locking to 16h can be prevented from shifting in the circumferential direction.

FIG. 9 is a second operation view showing the assembly procedure of the seal member 20. FIG. 9A is a diagram showing a state before assembly, and FIG. 9B is a diagram showing a state after assembly.
As shown in FIG. 9 (A), the outer wall 20n of the holding portion 20d of the seal member 20 is formed thicker toward the tip portion, and the inner surface 20q is inclined so as to approach the inner wall 20m side. The opening side of 21a is narrow. Accordingly, the holding portion 20d is moved to the peripheral wall 16h side of the case body 16 as indicated by the white arrow, and the groove 21a of the holding portion 20d is fitted and locked to the peripheral wall 16h as shown in FIG. 9B. In some cases, the groove 21a is in an expanded state, and a force for sandwiching the peripheral wall 16h in the holding portion 20d is generated, and the holding portion 20d is unlikely to be detached from the peripheral wall 16h.

FIG. 10 is an operation diagram illustrating the sealing performance of the seal member 20. FIG. 10A is a diagram showing a state in which the globe 18 is opened with respect to the case body 16, and FIG. 10B is a diagram showing a state in which the globe 18 is closed with respect to the case body 16.
As shown in FIG. 10 (A), the peripheral wall 18h of the globe 18 is moved from below the seal portion 20f of the seal member 20 as shown by a white arrow, and as shown in FIG. 10 (B), the globe 18 The glove 18 is closed and fixed to the case main body 16 so that the peripheral wall 18 h is in contact with the seal portion 20 f of the seal member 20. As a result, the seal portion 20f is compressed and crushed. At this time, the seal portion 20f is easily crushed by the concave groove 20r formed on the surface opposite to the seal surface 21b of the seal portion 20f, and the seal surface 21b increases the adhesion to the tip end surface 18j of the peripheral wall 18h. Sexuality is enhanced.

FIG. 11 is an operation diagram for explaining the operation of the drain hole 20e of the seal member 20. FIG.
The holding portion 20d of the seal member 20 holds the peripheral wall 16h of the case main body 16 so as to be sandwiched by elastic force. However, as indicated by an arrow A due to the sag or deformation of the seal member 20 due to secular change, When rainwater reaches the sealing member 20 directly from the top of 16 or as indicated by arrow B, rainwater enters between the peripheral wall 16h and the outer wall 20n of the holding portion 20d as indicated by arrow C. The rainwater falls through the drain hole 20e formed in the bottom wall 20p of the holding portion 20d, as shown by the arrow D, and does not stay on the holding portion 20d.
Further, since the drain hole 20e is located below the seal surface 21b of the seal portion 20f, rainwater does not move from the drain hole 20e to the seal surface 21b side.

  If there is no drain hole in the holding portion 20d, rainwater may accumulate in the groove 21a of the holding portion 20d, and the rainwater may enter the case 11 through the gap between the peripheral wall 16h and the inner wall 20m. In the present embodiment, rain water can be prevented from entering the case 11 by providing the drain hole 20e in the holding portion 20d.

Second Embodiment
FIG. 12 is a perspective view showing the lighting apparatus 40 of the second embodiment according to the present invention.
The lighting fixture 40 includes a case 41 and a light source unit 44 including a plurality of LEDs 42 and a reflection plate 43 accommodated in the case 41.
The case 41 includes a box-shaped case main body 45 having an opening 45A in the lower portion, a case cover 46 attached so as to close the opening 45A of the case main body 45, and a space between each of the case main body 45 and the case cover 46. It is comprised from the ring-shaped sealing member 47 to seal.

The case main body 45 includes a peripheral wall that forms the opening 45A, and a step portion that is formed inside the peripheral wall to be lower than the peripheral wall. The case cover 46 includes a frame-shaped cover base portion 51 and a glass body 52 made of tempered glass having translucency attached to the cover base portion 51, and has a peripheral wall projecting toward the case main body 45 on the cover base portion 51. Prepare. The seal member 47 includes a holding portion 47d that is locked to the peripheral wall of the case main body 45, and a seal portion 47e that is integrally provided on the inner side of the holding portion 47d and that is disposed on the step portion of the case main body 45. Since the peripheral wall of the case cover 46 is applied to the portion 47 e, the space between the stepped portion of the case body 45 and the peripheral wall of the case cover 46 is sealed by the seal portion 47 e of the seal member 47.
A plurality of drain holes 47f are formed in the lower portion of the holding portion 47d of the seal member 47.
The cross-sectional shape of the sealing member 47 described above is the same as the cross-sectional shape of the sealing member 20 of the first embodiment shown in FIG.

  As shown in FIGS. 4, 5, and 10 (A) and 10 (B) above, on the periphery of the opening 16 </ b> B of the case body 16, the step 16 p along the periphery and on the outside of the step 16 p. A ring-shaped sealing member 20 made of a soft resin is disposed on the step portion 16p, and the globe 18 is disposed on the sealing member 20 on the step portion 16p. A case 11 is formed in which the peripheral wall 18h of the peripheral edge of the case 16 is brought into contact with each other so that the case main body 16 and the globe 18 are joined in a watertight manner. The seal member 20 is disposed on the step portion 16p, and the seal portion 20f. And a holding portion 20d that is locked to the peripheral wall 16h.

  According to this configuration, the retaining member 20d of the seal member 20 is locked to the peripheral wall 16h, so that the seal member 20 can be easily assembled to the peripheral portion of the case body 16 and workability can be improved. In particular, even when the circumference of the seal member 20 is large or when the seal member 20 is made softer in order to improve the sealing performance, the seal portion 20f of the seal member 20 is displaced from the step portion 16p of the case body 16. Therefore, the seal portion 20f can be easily positioned on the step portion 16p, and the workability can be improved. Therefore, waterproof performance and workability can be improved.

Further, as shown in FIGS. 10A and 10B, the holding portion 20d includes a groove 21a having a substantially U-shaped cross section, and the peripheral wall 16h is locked to the groove 21a. Therefore, the groove 21a having a substantially U-shaped cross section. Thus, it is possible to make it difficult for the holding portion 20d to be detached from the peripheral wall 16h.
Further, since the seal portion 20f is provided with the concave groove 20r on the surface that faces the peripheral wall 18h of the globe 18 and contacts the step portion 16p, the seal portion 20f can be easily crushed by the concave groove 20r. The sealing performance between 16 and the globe 18 can be improved.

  Further, as shown in FIGS. 4 and 5, the tip end step 16q, which is the peripheral portion of the opening 16B of the case body 16, is located in substantially the same plane, and the base step 16r, which is one edge thereof, is The seal portions 20f, 20t, 20u, and 20v are disposed along the tip end step 16q, and the seal portions 20w and 20x are the base portions of the seal portion 20f. Since it arrange | positions along the step part 16r, the front-end | tip part step part 16q side and the base part step part 16r side of the case main body 16 can be sealed with the one sealing member 20. FIG.

  Further, as shown in FIGS. 1 and 2, the case 11 is for the lighting fixture 10 as a lamp, and the case main body and the case lid are the case main body 16 and the globe 18 on the main body side of the lighting fixture 10. Workability at the time of attaching the seal member 20 to the lighting fixture 10 can be improved, and waterproof performance between the case body 16 and the globe 18 can be improved.

  Further, as shown in FIGS. 2, 10A, and 10B, in the case 11 for the lighting fixture 10, a drain hole 20e is provided in the holding portion 20d of the seal member 20, and the drain hole 20e. Is located below the seal surface 21b of the seal portion 20f, so that rainwater or the like can be prevented from moving from the drain hole 20e to the seal surface 21b side.

  Also, as shown in FIGS. 4, 5, 10 (A) and 10 (B), the ring-shaped seal member 20 is a ring-shaped seal portion 20 f made of a soft resin and has an opening in the case body 16. A seal portion 20f that is disposed on a step portion 16p along the peripheral edge of 16B, contacts the peripheral wall 18h of the globe 18 and watertightly connects the case body 16 and the globe 18, and a ring-shaped holding portion 20d made of a soft resin. And a holding portion 20d that is integrally connected to the seal portion 20f and is engaged with the peripheral wall 16h protruding along the outside of the step portion 16p.

  Further, as shown in FIG. 6, since the seal portion 20f and the holding portion 20d are integrally molded with resin, the seal portion 20f can be easily attached to the step portion 16p by locking the holding portion 30d to the peripheral wall 16h. Can be positioned. Further, an increase in the number of components can be suppressed, and costs can be reduced.

The above-described embodiment is merely an aspect of the present invention, and can be arbitrarily modified and applied without departing from the gist of the present invention.
For example, in the said embodiment, as shown in FIG.2 and FIG.12, although the sealing members 20 and 47 were used for the lighting fixtures 10 and 40, not only this but a sealing member seals between two members. May be used for In FIG. 12, the holding portion 47d of the seal member 47 is provided over the entire circumference. However, the invention is not limited thereto, and the holding portion 47d may be provided in a part of the entire circumference.

10, 40 Lighting equipment (lamp)
11, 41 Case 16, 45 Case body 16B, 45A Opening 16h Case body peripheral wall 16p Step 18 Globe (case lid)
18h Globe wall 20, 47 Seal member 20d, 47d Holding portion 20e, 47f Drain hole 20f, 47e Seal portion 20r Concave groove 21a groove 21b Seal surface 46 Case cover (case lid)

Claims (10)

The periphery of the opening of the case body includes a stepped portion along the periphery, a peripheral wall projecting downward from the step portion I periphery and overlapping engagement of the case cover along the outside of the stepped portion,
Place a ring-shaped sealing member made of soft resin on the stepped portion,
A peripheral portion of the case cover by contact from below the seal member on the step portion is constituted with the case body, the case for coupling the case cover watertight arranged below the casing body ,
The seal member integrally includes a seal portion disposed in the stepped portion and a holding portion connected to the seal portion and locked to the peripheral wall ,
The holding portion includes an inner wall that hits the inner peripheral surface of the peripheral wall, an outer wall that hits the outer peripheral surface of the peripheral wall, and a bottom wall that connects the respective lower ends of the inner wall and the outer wall. Grooves are formed on each inner surface of
The inner wall is connected to the seal portion, the bottom wall is disposed below the lower end portion of the peripheral wall, and a drain hole is provided in the bottom wall. The drain hole is more than the seal surface of the seal portion. A seal structure for a case, which is located below .   The case sealing structure according to claim 1, wherein the holding portion includes a groove having a substantially U-shaped cross section, and the peripheral wall is locked to the groove.   3. The case sealing structure according to claim 1, wherein the seal portion is provided with a concave groove on a surface facing the peripheral portion of the case lid and contacting the stepped portion.   The peripheral edge of the opening of the case body is located in substantially the same plane, and one edge thereof is formed out of the plane, the seal portion is disposed along the stepped portion, and the in-plane 4. The case sealing structure according to claim 1, wherein the case sealing structure is disposed along the one edge portion that is disengaged from the case. 5.   The case sealing structure according to any one of claims 1 to 4, wherein the case is for a lamp, and the case main body and the case lid are a main body side of the lamp and a glove. The holding portion, the sealing structure of the case according to any one of claims 1 to 5, characterized in Rukoto provided in a pair on the sealing member.   The case seal according to any one of claims 1 to 6, wherein the peripheral wall includes a straight portion and a curved portion, and the holding portion is fitted to the straight portion and the curved portion. Construction.   8. The outer wall is formed so as to be thicker toward a tip portion, and an inner surface is inclined so as to approach the inner wall side, whereby the opening side of the groove is narrowed. The case seal structure according to any one of the above. A ring-shaped sealing portion made of a soft resin, which is arranged at a step portion along the peripheral edge of the opening of the case main body, with the peripheral edge of the case lid coming into contact from below , the case main body, and the lower portion of the case main body A seal portion for watertightly coupling the case lid disposed in
A ring-shaped holder made of soft resin, the case body in which the lead integrally with the sealing portion, projecting downward from the stepped portion overlaps the peripheral edge portion of the case lid along the outside of the stepped portion and a holding portion which is locked to the peripheral wall,
The holding portion includes an inner wall that hits the inner peripheral surface of the peripheral wall, an outer wall that hits the outer peripheral surface of the peripheral wall, and a bottom wall that connects the respective lower ends of the inner wall and the outer wall, and these inner wall, outer wall, and bottom wall Grooves are formed on each inner surface of
The inner wall is connected to the seal portion, the bottom wall is disposed below the lower end portion of the peripheral wall, and a drain hole is provided in the bottom wall. The drain hole is more than the seal surface of the seal portion. a ring-shaped sealing member, characterized in that located below. The ring-shaped sealing member according to claim 9 , wherein the sealing portion and the holding portion are integrally molded with resin.

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