JP7221118B2 - lighting equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture such as a spotlight provided with a cylindrical exterior member such as a hood at its front end.

Although the front-to-rear direction of the lighting fixture according to the present invention is not limited, in the present specification and claims, the direction in which light is emitted from the lighting fixture is defined in order to facilitate understanding of the invention. The forward direction of the luminaire and the opposite direction thereof will be described as the rearward direction of the luminaire.

Spotlights as shown in Patent Documents 1 and 2 below are well known as lighting fixtures. In conventional spotlights, it is well known that a cylindrical hood is provided at the front end portion as an optional member or the like in order to suppress glare or the like. The hood is arranged so that its central axis is coaxial with the central optical axis of the spotlight, and the front end of the hood is formed with an irradiation port for emitting light from the light source mounted on the spotlight toward the object to be illuminated. It is

Conventionally, as a method of attaching the hood to the spotlight main body, for example, the hood is detachably attached to the spotlight main body by engaging an engaging portion provided on the hood side with an engaged portion provided on the spotlight main body. mounting by screwing the hood onto the spotlight body.

JP 2015-130232 JP 2017-27899 A

Under the above technical background, conventional spotlights should have a structure in which the hood can be stably attached to the main body of the spotlight, or a structure in which the hood can be easily attached to the main body of the spotlight. This is the current situation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems. The purpose is to provide lighting fixtures for

In order to solve the above problems, the present invention has the following means.

[1] Equipped with a lighting fixture body having a light-transmitting portion on the front end face, and a cylindrical exterior member fitted to the front end of the lighting fixture body, wherein the illumination light emitted from the light source in the lighting fixture body is A lighting fixture that transmits light through the translucent part and illuminates forward through the interior of the exterior member,
A cylindrical elastic packing member is attached to the front end portion of the lighting fixture main body in a state of being externally fitted,
A plurality of threaded holes are formed in the exterior member at intervals in the circumferential direction corresponding to the packing member, and a screw member is arranged in the plurality of threaded holes with its shaft portion extending in the radial direction. screwed to each other,
A luminaire, wherein the exterior member is attached to the luminaire main body by screwing the screw members in an inner diameter direction and bringing the tip of the shaft portion of each screw member into pressure contact with the packing member. .

[2] A plurality of ridges extending in the axial direction of the hood are formed on the outer peripheral surface of the packing member at intervals in the circumferential direction. A continuous waterway is formed,
Item 1 above, wherein a drain hole is formed at the rear end of the water passage in the packing member, and the rear end side of the water passage is open to the rear of the hood on the outside of the lighting fixture body via the drain hole. luminaire as described in .

[3] The lighting fixture according to the preceding item 1 or 2, wherein the front end of the packing member is formed with an inward flange portion that abuts and locks on the outer periphery of the front end face of the lighting fixture main body.

[4] The lighting fixture according to any one of the preceding items 1 to 3, wherein the rear end of the packing member is formed with an outward flange portion that abuts and locks onto the rear end surface of the exterior member.

[5] An outer circumferential groove for pressure contact is formed on the outer circumferential surface of the packing member corresponding to the screw member and continues in the circumferential direction on the outer circumferential surface of the lighting fixture body,
5. The luminaire according to any one of the preceding items 1 to 4, wherein the tip of the shaft portion of the screw member is pressed against the inner peripheral surface of the pressure contact outer peripheral groove.

[6] An outer peripheral groove for positioning is formed in the outer peripheral surface of the front end portion of the lighting fixture main body along the circumferential direction,
An inner peripheral positioning protrusion is formed on the inner peripheral surface of the packing member along the circumferential direction corresponding to the outer peripheral groove for positioning,
6. The lighting fixture according to any one of the preceding items 1 to 5, wherein the packing member is positioned with respect to the lighting fixture main body by fitting the inner peripheral positioning protrusion into the outer positioning groove. .

According to the lighting fixture of the invention [1], the hood is assembled to the spotlight body by pressing the screw member screwed into the hood into elastic contact with the elastic packing member fitted on the spotlight body. Therefore, the screw member of the hood can be elastically brought into close contact with the outer peripheral surface of the spotlight body via the packing member, and the hood can be securely attached to the spotlight body in a stable state. Furthermore, in the lighting fixture of the present invention, the hood can be easily assembled to the spotlight main body simply by screwing the screw member into pressure contact with the outer peripheral surface of the spotlight main body via the packing member.

According to the lighting fixture of the invention [2], the water passage is formed along the axial direction on the outer peripheral surface of the packing member, and the rear end of the water passage is opened to the outside through the drain hole. For example, even if this lighting fixture is installed outdoors facing upwards, rainwater that has entered the hood can be smoothly discharged to the outside through the water passage and drainage holes, and it can be used outdoors without any problems. can.

According to the lighting fixture of the invention [3], since the front end of the packing member is formed with the inward flange corresponding to the front end face of the lighting fixture body, the inward flange part is brought into contact with the front end face of the lighting fixture body. The packing member can be easily aligned by simply engaging and locking, and the mounting operation of the packing member can be easily performed.

According to the lighting fixture of the invention [4], since the rear end of the packing member is formed with the outward flange corresponding to the rear end surface of the exterior member, the outward flange is brought into contact with the rear end surface of the hood 6. The position of the hood can be easily adjusted just by locking it, and the mounting work of the hood can be performed even more easily.

According to the lighting fixture of the invention [5], the outer peripheral groove for pressure contact is formed on the outer peripheral surface of the packing member, and the threaded member of the hood is screwed into the outer peripheral groove for pressure contact for pressure contact. The hood can be securely screwed into place, and the hood can be attached to the lighting fixture body in a more stable state.

According to the lighting fixture of invention [6], since the inner peripheral positioning protrusion provided on the inner peripheral surface of the packing member is fitted into the outer peripheral positioning groove provided on the outer periphery of the lighting fixture main body, With this combination, it is possible to prevent the packing member from being dislocated with respect to the main body of the lighting fixture, so that the packing member can be attached to the main body of the spotlight in a more stable state.

FIG. 1 is a side view showing a spotlight as a lighting fixture that is an embodiment of the present invention. FIG. 2 is a side cross-sectional view showing the periphery of the hood mounting portion in the spotlight of the embodiment. 3 is an exploded sectional view of FIG. 2. FIG. FIG. 4 is a cross-sectional plan view showing the periphery of the hood mounting portion in the spotlight of the embodiment. 3 is an enlarged cross-sectional view showing the periphery of a screwing portion of a packing member in the spotlight of FIG. 2; FIG. 6A and 6B are views showing a packing member applied to the spotlight of the embodiment, FIG. 6A being a front view, FIG. 6B being a side view, and FIG. 6C being a rear view. FIG. 7 is a perspective view showing the packing member of the embodiment.

FIG. 1 is a side view showing a spotlight as a lighting fixture that is an embodiment of the present invention, and FIGS. 2 to 4 are cross-sectional views showing the vicinity of a hood mounting portion of the spotlight of the embodiment.

As shown in these figures, the lighting fixture of this embodiment constitutes a waterproof outdoor spotlight. In this embodiment, as described above, the direction in which the illumination light is emitted (the left direction in FIG. 1) is defined as "forward", and the opposite direction (right direction in FIG. 1) is defined as "rear".

As shown in FIGS. 1 to 4, the spotlight of this embodiment includes a cylindrical or columnar spotlight body 1 as a lighting fixture body, a support arm 11 fixed to the outer peripheral surface of the spotlight body 1, A cylindrical hood 6 is fitted to the front end of the spotlight body 1 via a cylindrical packing member 5. The spotlight body 1 is mounted on a mounting location such as an outer wall surface outdoors via a support arm 11. is used.

The spotlight body 1 includes an outer casing 2 forming an outer peripheral wall, an inner cylindrical body 3 housed in the outer casing 2, a front cover 4 closing a front opening of the outer casing 2, and housed in the outer casing. and a light source unit (not shown) as a basic component.

The outer casing 2 is also called a shade, a cylinder, or the like, and is formed in a cylindrical shape.

The outer casing 2 has four screwing portions 21 formed at equal intervals in the circumferential direction on the inner peripheral surface of the front end portion thereof. Each screwing portion 21 is formed thick so as to protrude in the inner diameter direction, and is configured so that the screw 12 can be screwed from the front side as described later.

Further, the outer casing 2 is formed so that the outer peripheral surface of the front end portion thereof is recessed inward (inward direction), thereby forming a recessed stepped portion 22 for attaching the cover.

The light source unit including an LED or the like as a light source is accommodated in the rear portion of the outer casing 2, and the light source of the light source unit is configured to emit illumination light forward.

An inner tubular body 3 housed in the front portion of the outer casing 2 is formed in a cylindrical shape with both ends opened. An outward flange portion 31 is formed on the outer circumference of the front end portion of the inner cylindrical body 3 so as to protrude outward. A baffle 32 for reducing glare is formed on the inner peripheral surface of the inner cylindrical body 3 . In this embodiment, the baffle 32 is composed of circumferentially continuous ridges and recesses alternately arranged along the axial direction.

The inner cylindrical body 3 is housed in the front side portion of the outer casing 2 from the front end opening inside the outer casing 2 , and the outward flange portion 31 is arranged in a state of being locked to the front end surface of the outer casing 2 .

The front cover 4 attached to the front end opening of the outer casing 2 has an annular frame 41 . A transparent protective plate 43 made of a transparent glass plate or the like is attached in a watertight manner within the frame of the frame 41 . In this embodiment, the transparent protective plate 43 is configured as a translucent portion.

Further, an outer peripheral wall 42 is formed on the outer peripheral edge of the frame 41 of the front cover 4 so as to protrude rearward. The outer peripheral wall 42 has an inner diameter slightly larger than the outer diameter of the cover-mounting recessed stepped portion 22 of the outer casing 2, so that it can be fitly fitted onto the cover-mounting recessed stepped portion 22. ing.

The front cover 4 is attached to the outer casing 2 in which the inner cylindrical body 3 is installed. That is, the outer peripheral wall 42 of the front cover 4 is fitted into the cover mounting concave stepped portion 22 of the outer casing 2 , and the frame 41 is arranged along the outward flange portion 31 of the inner cylindrical body 3 . In this state, the screw 12 passes through the frame 41 of the front cover 4 and the outward flange portion 31 of the inner cylindrical body 3 and is screwed into the screwing portion 21 of the outer casing 2 to be fixed. As a result, the front cover 4 is fixed to the outer casing 2 via the inner cylindrical body 3, and the spotlight main body 1 is assembled. In the spotlight main body 1, the rear end surface of the outer peripheral wall 42 of the front cover 4 is arranged slightly forwardly away from the rear end surface of the cover mounting concave step portion 22 of the outer casing 2. A gap is formed between the rear end face of the outer peripheral wall and the rear end face of the cover mounting recessed portion of the outer casing 2, and the gap forms an outer peripheral groove 15 for positioning that continues along the circumferential direction.

FIG. 5 is an enlarged view showing the vicinity of the screwing portion of the packing member 5 in the spotlight of FIG. 2, and FIGS. 6 and 7 are views showing the packing member 5 applied to the spotlight of this embodiment.

As shown in FIGS. 2 to 7, a packing member 5 is fitted on the front end of the spotlight body 1. As shown in FIGS. In this embodiment, the packing member 5 is made of an elastic silicone rubber molding. The packing member 5 has a cylindrical peripheral wall portion 51. An inward flange portion 52 is integrally formed at the front end of the peripheral wall portion 51 so as to protrude radially inward, and an outer flange portion 52 is formed at the rear end. An outward flange portion 53 is integrally formed so as to protrude in the radial direction.

Further, on the inner peripheral surface of the peripheral wall portion 51 of the packing member 5 , an inner peripheral positioning convex portion 55 is integrally formed continuously in the peripheral direction corresponding to the outer peripheral positioning groove 15 of the spotlight body 1 .

Further, on the outer peripheral surface of the peripheral wall portion 51 of the packing member 5, ridges 56 are integrally formed which are arranged at regular intervals in the circumferential direction and continuously arranged in the axial direction. Between each of the plurality of ridges 56 is formed as a continuous water passage 57 along the axial direction. Each water passage 57 is open forward at its front end. Further, the outward flange portion 53 of the packing member 5 is formed with drain holes 54 penetrating in the front-rear direction corresponding to the respective water passages 57 . is open to the rear.

Further, on the outer peripheral surface of the peripheral wall portion 51 of the packing member 5, a pressure contact outer peripheral groove 58 is formed continuously in the circumferential direction at a rearward position.

The packing member 5 configured as described above is attached to the front end portion of the spotlight main body 1 in an elastic tight contact state. That is, the packing member 5 is put on the outer periphery of the front end portion of the spotlight main body 1 while being expanded and deformed by pulling the peripheral wall portion 51 , and by releasing the tensile force, the peripheral wall portion 51 is elastically restored to the spotlight main body 1 . Attach it in close contact with the outer peripheral surface of the front end. At this time, by engaging the inward flange portion 52 at the front end of the packing member 5 with the outer peripheral edge portion of the front end face of the spotlight main body 1 , the packing member 5 can be aligned in the front-rear direction, and the inner circumference of the packing member 5 can be adjusted. By filling the positioning inner peripheral groove 15 on the outer peripheral surface of the front end portion of the spotlight main body 1 with the inner peripheral positioning convex portion 55 of the surface in an elastic tight contact state, the packing member 5 is prevented from being dislocated in the front-rear direction. .

As shown in FIGS. 1 to 5, the hood 6 fitted on the front end of the spotlight body 1 is formed in a substantially cylindrical shape, and the front end is cut with a flat surface that is inclined with respect to the axis. It is a cut type. The inner diameter of the rear end of the hood 6 corresponds to the outer diameter of the packing member 5 attached to the outer casing 2 , and the rear end of the hood 6 fits outside the packing member 5 . configured to fit.

Four threaded holes 61 are formed in the hood 6 at equal intervals in the circumferential direction so as to correspond to the press contact outer peripheral grooves 58 of the packing member 5 . Needless to say, the inner peripheral surface of each threaded hole 61 is formed with a thread groove. A shaft portion of a screw member 62 is disposed in each threaded hole 61 in a state of being screwed thereon. Furthermore, the shaft portion of each screw member 62 is arranged along the radial direction of the hood 6 or the spotlight main body 1 . When each screw member 62 is rotated in the screwing (fastening) direction, the screw member 62 advances radially toward the axis of the hood 6 (spotlight body 1) and rotates in the opposite direction (loosening direction). Then, the screw member 62 is configured to retreat in the outer diameter direction away from the axis of the hood 6 (spotlight main body 1).

The rear end of the hood 6 is tightly fitted to the packing member 5 fitted to the front end of the spotlight body 1 . At this time, the rear end face of the hood 6 abuts against the outward flange portion 53 at the rear end of the packing member 5, so that the positioning of the hood 6 with respect to the packing member 5 (spotlight main body 1) in the axial direction can be performed. Then, the screw 62 (threaded hole 61 ) of the hood 6 is arranged at a position corresponding to the press contact outer circumferential groove 58 of the packing member 5 . In this state, each threaded member 62 screwed into the threaded hole 61 of the hood 6 is rotated in the screwing direction so that the tip of the shaft portion of each threaded member 62 is brought into contact with the inner periphery of the pressure contact outer circumferential groove 58 of the packing member 5. The inner peripheral portion of the packing member 5 corresponding to the pressure contact portion is pressed against the outer peripheral surface of the spotlight main body 1 and tightly fixed.

The hood 6 is assembled to the spotlight main body 1 through the packing member 5 in this manner. In this assembled state, the water passages 57 provided between the circumferentially adjacent ridges 56 on the outer peripheral surface side of the packing member 5 are arranged so as to be continuous in the axial direction. The side is opened forward inside the hood 6 , and the rear end side is opened behind the hood 6 outside the spotlight main body 1 .

When removing the hood 6 from the spotlight main body 1, the hood 6 can be removed from the spotlight main body 1 (the packing member 5) by loosening the screw members 62 and separating the shaft portions of the screw members 62 from the packing member 5. can be removed from

In the potlight (lighting fixture) of this configuration, the support arm 11 provided in the outer casing 1 is installed on a downward horizontal surface such as a ceiling surface, a vertical surface such as a wall surface, an upward surface such as a road surface, a floor surface, and a table surface. It is used by being appropriately attached to a horizontal surface, an inclined surface, a support, or the like.

According to the spotlight of the present embodiment constructed as described above, the hood 6 is fitted onto the front end of the spotlight main body 1 via the cylindrical elastic packing member 5 and screwed onto the hood 6. The hood 6 is assembled to the spotlight main body 1 by screwing the threaded member 62 into pressure contact with the packing member 5 and elastically contacting the packing member 5 . The hood 6 can be elastically brought into close contact with the outer peripheral surface of the spotlight main body 1 through the hood 6, and the hood 6 can be prevented from causing troubles such as rattling with respect to the spotlight main body 1, and can be securely mounted in a stable state.

Furthermore, in the spotlight of this embodiment, since the tip of the shaft portion of the threaded member 62 is pressed against the outer peripheral surface of the spotlight body 1, the threaded member 62 can be positioned at any circumferential position with respect to the spotlight body 1. The hood 6 can be attached without any trouble even if it is brazed, and the hood 6 can be easily and efficiently attached without the need for troublesome operations such as the positioning of the screw member 62.例文帳に追加

Further, in this embodiment, a water passage 57 extending continuously in the axial direction is formed between the packing member 5 and the hood 6 , and the rear end of the water passage 57 is opened to the outside through the drain hole 54 . Therefore, even if rainwater enters the hood 6 from the front when the spotlight is installed outdoors facing upward, the rainwater smoothly flows outside through the water passage 57 and the drain hole 54. Ejected. Therefore, there is no problem that rainwater is stored in the hood 6, and the hood 6 can be used outdoors without any trouble.

Further, in this embodiment, since the front end of the packing member 5 is formed with the inward flange portion 52 corresponding to the front end surface of the spotlight main body 1 , when the packing member 5 is fitted onto the spotlight main body 1 , the inner flange portion 52 is formed. In addition, the inward flange portion 52 can be easily positioned just by abutting and locking the front end surface of the spotlight body 1, and the mounting work of the packing member 5 can be easily performed.

Furthermore, in this embodiment, since the inner peripheral positioning protrusion 55 provided on the inner peripheral surface of the packing member 5 is fitted into the outer peripheral positioning groove 15 of the spotlight main body 1, the fitting allows the packing member 5 can be prevented from being displaced with respect to the spotlight main body 1, and the packing member 5 can be attached to the spotlight main body 1 in a more stable state.

Furthermore, in the present embodiment, the outward flange portion 53 is formed at the rear end of the packing member 5 so as to correspond to the rear end surface of the hood 6 . Alignment can be easily performed simply by abutting and locking the rear end face of the hood 6 against the outward flange portion 53 of the packing member 5, and the mounting operation of the hood 6 can be performed even more easily.

Further, in this embodiment, the pressure-contact outer peripheral groove 58 is formed on the outer peripheral surface of the packing member 5, and the screw member 6 of the hood 6 is screwed into the pressure-contact outer peripheral groove 58 so as to be in close contact. 6 can be securely screwed into a predetermined position (inside the pressure contact outer peripheral groove 58), and the hood 6 can be attached to the spotlight main body 1 in a more stable state.

Furthermore, in the present embodiment, the positioning inner peripheral convex portion 55 provided on the inner peripheral surface of the packing member 5 is formed corresponding to the press contact outer peripheral groove 58 into which the screw member 6 is screwed. 6 presses the peripheral portion of the inner peripheral positioning protrusion 55 in the packing member 5 inward, and the inner peripheral positioning protrusion 55 is securely maintained in a state of being press-fitted into the outer peripheral positioning groove 15 of the spotlight main body 1. be. Therefore, the packing member 5 and the hood 6 can be more reliably prevented from being dislocated, and the hood 6 can be attached to the spotlight main body 1 in a more stable state.

In the above-described embodiment, a cylindrical outer casing 2 is used, but the shape of the outer casing 2 is not particularly limited in the present invention. For example, the outer casing 2 may have a rectangular tubular shape or an elliptical tubular shape.

Furthermore, in the above embodiment, the case where the outer casing 2 having a constant outer diameter from the front end to the rear end is used is described as an example, but in the present invention, the outer diameter of the outer casing is partially changed. can be For example, the outer casing may be formed in a trumpet shape or a truncated cone shape so that the outer diameter of the front portion of the outer casing becomes gradually larger than the outer diameter of the rear portion.

Further, in the above-described embodiment, the case where the present invention is applied to an outdoor lighting device (spotlight) has been described as an example, but the present invention is not limited to this, and the present invention can be applied to an indoor lighting device (spotlight). light) can also be applied.

Further, in the above-described embodiment, the case where a cut-type hood is used as the hood, which is an exterior member, has been described as an example. However, the present invention is not limited to this. On the other hand, a straight-type hood cut by a plane perpendicular to the hood, a hood for attaching a spread lens, or the like can also be used.

In the above embodiments, the case where the hood is used as the exterior member has been described as an example, but the exterior member of the present invention is not limited to the hood, and a snoot, honeycomb, or other exterior member may be used.

In the above-described embodiment, the hood 6 is provided with four threaded holes 61 and four threaded members 62. However, the number of threaded holes and threaded members is not particularly limited. A plurality of threaded holes and screw members may be provided.

The lighting fixture of the present invention can be suitably used as a spotlight or the like having a hood installed at the front end.

1: Spotlight body (luminaire body)
15: Positioning outer peripheral groove 43: Transparent protective plate (translucent portion)
5: Packing member 52: Inward flange portion 53: Outward flange portion 54: Drain hole 55: Positioning inner peripheral convex portion 56: Protruding portion 57: Water passage 58: Pressure contact outer peripheral groove 6: Hood (exterior member)
61: threaded hole 62: threaded member

Claims (6)

A luminaire body having a light-transmitting portion on a front end surface thereof, and a cylindrical exterior member fitted to the front end portion of the luminaire body, wherein illumination light emitted from a light source in the luminaire body passes through the translucent part. A lighting fixture that passes through a part and illuminates forward through the interior of the exterior member,
A cylindrical elastic packing member is attached to the front end portion of the lighting fixture main body in a state of being externally fitted,
A plurality of threaded holes are formed in the exterior member at intervals in the circumferential direction corresponding to the packing member, and a screw member is arranged in the plurality of threaded holes with its shaft portion extending in the radial direction. screwed to each other,
A luminaire, wherein the exterior member is attached to the luminaire main body by screwing the screw members in an inner diameter direction and bringing the tip of the shaft portion of each screw member into pressure contact with the packing member. . A plurality of ridges extending in the axial direction of the exterior member are formed on the outer peripheral surface of the packing member at intervals in the circumferential direction, and each of the plurality of ridges is continuous along the axial direction. Aqueducts are formed,
A drain hole is formed at the rear end of the water passage in the packing member, and the rear end side of the water passage is opened to the rear of the exterior member outside the lighting fixture body via the drain hole. Item 1. The lighting fixture according to item 1. 3. The luminaire according to claim 1, wherein the front end of the packing member is formed with an inward flange portion that abuts and locks on the outer periphery of the front end face of the luminaire main body. The lighting fixture according to any one of claims 1 to 3, wherein the rear end of the packing member is formed with an outward flange portion that abuts and locks onto the rear end surface of the exterior member. An outer peripheral groove for pressure contact is formed on the outer peripheral surface of the packing member corresponding to the screw member and continues in the peripheral direction to the outer peripheral surface of the lighting fixture main body,
5. The lighting fixture according to claim 1, wherein the distal end of the shaft portion of the screw member is pressed against the inner peripheral surface of the pressure contact outer peripheral groove. An outer peripheral groove for positioning is formed in the outer peripheral surface of the front end portion of the main body of the lighting fixture along the circumferential direction,
An inner peripheral positioning protrusion is formed on the inner peripheral surface of the packing member along the circumferential direction corresponding to the outer peripheral groove for positioning,
The lighting according to any one of claims 1 to 5, wherein the packing member is positioned with respect to the lighting fixture main body by fitting the inner peripheral positioning convex portion into the outer peripheral positioning groove. instrument.

Images