WO2013145121A1

WO2013145121A1 - Traffic signal apparatus

Info

Publication number: WO2013145121A1
Application number: PCT/JP2012/057910
Authority: WO
Inventors: 林　健太郎
Original assignee: 信号電材株式会社
Priority date: 2012-03-27
Filing date: 2012-03-27
Publication date: 2013-10-03
Also published as: JP5138837B1; JPWO2013145121A1

Abstract

A traffic signal apparatus comprises a housing (2) that is formed with an opening portion (3); a packing-placing plate portion (8) that is circumferentially formed in an approximately vertical shape in a central direction of the opening portion along an inner circumferential wall surface (7) of the opening portion (3); a fixed ring-engaging partition wall (10) that is circumferentially formed in a vertical shape on the packing-placing plate portion (8) with a predetermined gap from the inner circumferential wall surface (7); an annular packing (33) that is placed between the fixed ring-engaging partition wall (10) and an inner circumferential end of the packing-placing plate portion (8); an LED unit where an anchoring flange portion (18) is circumferentially formed on the packing (33) in such a manner that a lower end thereof can be anchored; a fixing ring (5) that is pressed against an upper end of the anchoring flange portion (18) and can be attached to or detached from the fixed ring-engaging partition wall (10); and a hood (6) whose base end can be inserted between the inner circumferential wall surface (7) and the fixed ring-engaging partition wall (10) and which can be attached to or detached from the fixed ring-engaging partition wall (10).

Description

Traffic light

The present invention relates to a traffic signal lamp. Specifically, the present invention relates to a traffic signal lamp using an LED unit as a light source.

Conventionally, as this type of traffic signal lamp, for example, one described in Patent Document 1 is known.
Specifically, as shown in FIG. 11, the lens 103 is fixed to the front opening 102 of the lid 101 with a presser fitting 104. The first and

second mounting brackets

106 and 107 are disposed inside the housing 105, and the printed wiring board 110 having the LEDs 109 on the back side of the mounting plate 108, the third and fourth mounting brackets 111, 112 is disposed.

Here, the pin 113 provided on the third mounting bracket 111 is engaged with the U-shaped groove 114 of the first mounting bracket 106, and the pin 115 provided on the fourth mounting bracket 112 is the second mounting bracket. The U-shaped groove 116 of the metal fitting 107 is engaged with the locking member 117.

Further, the fourth mounting bracket 112 is pressed by the fixing bracket 118 provided on the lid 101, and the pin 115 is pressed against the U-shaped groove 116.

JP 2001-160198 A

However, in the traffic signal lamp described in the above-mentioned Patent Document 1, since the printed wiring board, the mounting plate, and the lens are individually attached to the front opening, it takes time for the mounting work.

In addition, since each member constituting the traffic signal lamp is attached with a fastening member such as a screw, each part must be removed with a tool when replacing the part after the traffic signal lamp is installed.

The present invention was devised in view of the above points, and provides a traffic signal lamp capable of realizing mounting an LED lamp and a hood constituting a traffic signal lamp without using a fastening member such as a screw. It is intended to do.

In order to achieve the above object, a traffic signal lamp according to the present invention has a casing formed with an opening and an inner peripheral wall surface of the opening. A packing mounting plate portion, a fixing ring engaging partition wall vertically provided on the packing mounting plate portion with a certain gap from the inner peripheral wall surface, and the fixing ring member An LED unit in which an annular packing placed between a wearing partition wall and an inner peripheral end of the packing placement plate portion, and a collar portion whose lower end can be moored are provided on the packing. And a fixing ring that is in pressure contact with an upper end of the flange portion and is detachable from the fixing ring engaging partition wall, and a base end between the inner peripheral wall surface and the fixing ring engaging partition wall. A hood that is insertable and attachable to and detachable from the fixing ring engaging partition wall. Provided with a door.

Here, since the opening is formed in the housing, it becomes possible to draw out the wiring (for example, a power cord) in the housing from the opening, thereby facilitating the connection between the housing and the LED unit. be able to.

Further, an annular packing can be mounted on the packing mounting plate portion by the packing mounting plate portion provided around the inner peripheral wall surface of the opening portion at a substantially right angle to the center direction of the opening portion. .

Also, the hood can be attached by means of a fixing ring engaging partition wall that is vertically provided around the packing mounting plate portion with a certain gap from the inner peripheral wall surface. Specifically, the hood can be attached by inserting the proximal end side of the hood between the inner peripheral wall surface and the fixing ring engaging partition wall.

Furthermore, water (for example, rainwater in the rain and rain) enters the enclosure from the opening by the annular packing placed between the fixing ring engaging partition wall and the inner peripheral end of the packing placement plate. Can be prevented.

In addition, the LED unit with the collar part whose lower end can be moored on the packing can be mounted with the collar part of the LED unit moored on the packing and the opening part closed with the LED unit. It becomes.

Furthermore, the LED unit can be firmly attached by the fixing ring which is brought into pressure contact with the upper end of the buttock and can be attached to and detached from the fixing ring engaging partition wall. Specifically, the LED unit's collar is placed on the packing, and the fixing ring is attached to the fixing ring engaging partition wall, so that the LED unit's collar is pressed and the LED unit can be firmly attached. It becomes.

Furthermore, since the fixing ring is configured to be detachable from the fixing ring engaging partition wall, the LED unit can be replaced or repaired from the opening side.

In addition, it is necessary to replace the hood, for example, with a hood whose base end can be inserted between the inner peripheral wall surface and the fixing ring engaging partition wall and which can be attached to and detached from the fixing ring engaging partition wall. When this occurs, the base end of the hood is removed from the gap between the inner peripheral wall surface and the fixing ring engaging partition wall, and a new hood can be attached.

In addition, when the inner peripheral wall surface of the fixing ring engaging partition wall is provided with protrusions formed at predetermined intervals, and the outer peripheral wall surface of the fixing ring corresponding to the protrusions is provided with an engaging groove part on which the protrusions can be anchored. The protrusion formed on the inner peripheral wall surface of the fixing ring engaging partition wall is moored with the engaging groove portion formed on the outer peripheral wall surface of the fixing ring, so that the fixing ring attaches the flange portion of the LED unit. It is possible to firmly fix the fixing ring and the fixing ring engaging partition wall in the pressed state.

In addition, when the fixing ring engaging partition wall on both sides of the protruding portion has a groove portion whose upper end is open, the fixing ring is attached by forming the groove portion on both sides of the protruding portion, for example. At this time, the protrusion comes into contact with the outer peripheral wall surface of the fixing ring, and the protrusion can swing toward the center of the opening, so that the fixing ring can be attached or removed smoothly.

The engaging groove is formed along the circumferential direction of the fixing ring, and one end of the engaging groove is used as an opening for inserting the protruding portion, and the other end of the engaging groove is used for fixing the protruding portion. In the case of having the engaging base portion, the protruding portion of the fixing ring engaging partition wall is inserted into the engaging groove portion from the opening portion at one end of the engaging groove portion, and the fixing ring is rotated. As a result, the protrusion is anchored to the engaging base at the other end of the engaging groove, and the fixing ring and the fixing ring engaging partition wall can be engaged.

In addition, when the outer peripheral wall surface of the fixing ring engaging partition wall is provided with a hook part protrudingly formed at predetermined intervals, and a hood base end corresponding to the hook part provided with an engagement piece part that can be anchored to the hook part. By inserting the engaging piece of the hood between the inner peripheral wall surface and the fixing ring engaging partition wall, the hook part and the engaging piece part are anchored to each other, so that the fixing ring engaging partition wall is strong. A simple hood can be attached.

In addition, when the fixing ring engaging partition wall on both sides of the hook portion has a cut portion with an open lower end, grooves are formed on both sides of the hook portion, for example, when attaching a hood. In addition, the hook part comes into contact with the base end surface of the hood, and the hook part swings toward the center of the opening, so that the base end of the hook part can be attached or detached smoothly.

Further, when the engagement piece portion of the hood has an engagement hole for inserting the hook portion, when the engagement piece portion of the hood is inserted between the inner peripheral wall surface and the fixing ring engaging partition wall, The hook portion of the fixing ring engaging partition wall is fitted into the engaging hole portion of the engaging piece portion of the hood, so that the hook portion and the engaging hole portion can be securely anchored.

Further, when the inner surface of the engagement piece portion of the hood has an inclined surface inclined toward the engagement hole portion, the hood is rotated by rotating the hood in the circumferential direction of the inner peripheral wall surface of the opening portion. The hook portion inserted into the engaging hole portion slides on the inclined surface and smoothly disengages from the engaging hole portion, and the hood can be removed from the fixing ring engaging partition wall.

Further, when at least the fixing ring engaging partition wall, the fixing ring, and the hood are formed of a synthetic resin material having an elastic force, it can be easily attached and detached using the elastic force.

According to the traffic signal lamp of the present invention, the LED lamp and the hood can be easily attached and detached without using a fastening member such as a screw.

It is an exploded schematic diagram for demonstrating an example of the traffic signal lamp device to which this invention is applied. It is a three-dimensional schematic diagram for demonstrating an example of the opening part of the housing in the traffic signal lamp device to which this invention is applied. It is a three-dimensional schematic diagram for demonstrating the ring for fixation in the traffic signal lamp device to which this invention is applied. It is a principal part expansion schematic diagram of the ring for fixation in the traffic signal lamp device to which this invention is applied. It is an expanded sectional schematic diagram in the attachment state of the ring for fixation in the traffic signal lamp to which this invention is applied. It is a three-dimensional schematic diagram for demonstrating the food | hood in the traffic signal lamp device to which this invention is applied. It is a principal part expansion schematic diagram for demonstrating the hole part for engagement of the hood in the traffic signal lamp device to which this invention is applied. It is a schematic diagram for demonstrating the engagement state of the fixing ring engagement partition wall and fixing ring in the traffic signal lamp to which this invention is applied. It is a schematic diagram for demonstrating the attachment state of the hood in the traffic signal lamp device to which this invention is applied. It is a schematic diagram for demonstrating the removal state of the hood in the traffic signal lamp device to which this invention is applied. It is a schematic diagram for demonstrating an example of the conventional traffic signal lamp device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings to provide an understanding of the present invention.
FIG. 1 is an exploded schematic diagram for explaining an example of a traffic signal lamp to which the present invention is applied, and FIG. 2 is a three-dimensional schematic diagram for explaining an example of an opening of a housing in the traffic signal lamp to which the present invention is applied. .

In the traffic signal lamp 1 shown here, each part of the housing 2, the LED unit 4 and the hood 6 is formed of a synthetic resin material such as reinforced plastic, and can be easily attached and detached manually without using a fastening member such as a screw. Possible configuration.

Here, an opening 3 is formed on the front surface (the side on which the signal lamp is attached) of the housing 2, and the LED unit 4 is fixed to the opening 3 with a fixing ring 5, and a hood 6 is further attached. It is said that.

As shown in FIG. 2, the opening 3 has a larger inner diameter than the outer diameter of the LED unit 4, and an inner peripheral wall surface 7 having a constant width is formed from the front surface of the housing 2 toward the inside of the housing 2. Has been.

Further, a packing mounting plate portion 8 having a constant width is provided around the lower peripheral edge of the inner peripheral wall surface 7 so as to protrude horizontally. Further, packing engaging projections 9 that are vertical and have a predetermined length are provided around the inner peripheral end of the packing mounting plate portion 8 at predetermined intervals.

Further, a fixing ring engaging partition wall 10 formed in an annular shape on the packing mounting plate portion 8 is provided so as to be spaced apart from the inner peripheral wall surface 7 of the opening 3 by the thickness of the hood 6. ing.

The fixing ring engaging partition wall 10 is provided with a fixing ring engaging portion 11 and a hood engaging portion 12 for each predetermined position.

Here, the fixing ring engaging portion 11 is provided with a groove 13 at the upper end of each side, and a protruding portion 14 is formed projecting into the opening 3.

Further, the hood engaging portion 12 is formed with a gap A between the packing mounting plate portion 8 and cut portions 15 provided on both sides thereof, and hook portions in the direction of the inner peripheral wall surface 7 of the opening 3. (Not shown) is projectingly formed.

The LED unit 4 includes a lens portion 16 and a substrate storage portion 17, and a mooring hook portion 18 is provided around the boundary between the lens portion 16 and the substrate storage portion 17. .

Here, an LED substrate (not shown) on which LEDs are arranged is accommodated in the substrate accommodating portion 17. Then, a wiring cord (not shown) is connected to a power cord (not shown) in the housing 2 from the bottom surface of the substrate housing portion 17 so that the LED can be turned on.

Next, FIG. 3 is a three-dimensional schematic diagram for explaining a fixing ring in a traffic signal lamp device to which the present invention is applied. FIG. 4 is an enlarged schematic diagram of a main part of the fixing ring in the traffic signal lamp device to which the present invention is applied. FIG. 5 is an enlarged schematic cross-sectional view of the traffic light lamp to which the present invention is applied in a state where the fixing ring is attached.

Here, the inner diameter of the fixing ring 5 is substantially the same as the outer diameter of the lens portion 16 of the LED unit 4 in plan view.

Further, the outer diameter is formed in an annular shape on the packing mounting plate portion 8 by providing an interval corresponding to the thickness of the hood 6 with respect to the inner peripheral wall surface 7 of the opening 3 described in detail in FIG. The fixing ring engaging partition wall 10 has substantially the same diameter as the inner diameter.

The fixing ring 5 has a substantially quadrangular cross section, and a hemispherical convex portion 27 is projected from the bottom surface at regular intervals.

Further, when the fixing ring 5 is placed on the anchoring collar 18 of the LED unit 4, the collar 19 is provided around the outer periphery of the fixing ring 5 so as to cover the upper end of the fixing ring engaging partition wall 10. Has been.

Here, the outer peripheral wall 20 of the fixing ring 5 is formed with an engaging groove portion 21 into which the protruding portion 14 of the fixing ring engaging portion 11 in FIG. 2 can be fitted.

The engaging groove portion 21 is arranged on the outer peripheral wall 20 of the fixing ring 5 corresponding to the fixing ring engaging portion 11 of the fixing ring engaging partition wall 10.

Further, the engaging groove portion 21 can be inserted only along the outer peripheral wall 20 surface of the fixing ring 5, and the protrusion portion 14 of the fixing ring engaging portion 11 can be moved in the direction of arrow B or C in the figure. A cavity 22 is formed.

The cavity 22 has an open portion 25 in which the lower part of one end 23 communicates with the cavity 22, and the other end 24 is engaged so that the protrusion 14 of the fixing ring engaging portion 11 pushes down. A base portion 26 is formed.

Therefore, the opening portion 25 of the engagement groove portion 21 of the fixing ring 5 is fitted into the protrusion portion 14 of the fixing ring engaging portion 11 from above, and the protrusion portion 14 is positioned in the cavity portion 22. Then, by rotating the fixing ring 5 toward the one end 23 side of the cavity portion 22, the protrusion 14 moves to the other end 24 of the cavity portion 22 while pushing down the engagement base portion 26.

Further, an engagement recess 28 in which a tip of a driver or the like can be inserted is provided on the outer peripheral wall 20 of the fixing ring 5. By providing the engaging recess 28, for example, the fixing ring 5 can be easily detached from the fixing ring engaging partition wall 10 by inserting the tip of a driver or the like and rotating the fixing ring 5 in the left-right direction. It is configured to be able to.

Next, FIG. 6 is a three-dimensional schematic diagram for explaining a hood in a traffic signal lamp to which the present invention is applied, and FIG. 7 is a main part for explaining a hole for engaging the hood in the traffic signal lamp to which the present invention is applied. It is an enlarged schematic diagram.

Here, the base end 29 of the hood 6 has a semicircular shape that can be fitted between the inner peripheral wall surface 7 and the fixing ring engaging partition wall 10.

The required number of engagement pieces 30 are projected from the base end 29 of the hood 6. The engagement piece 30 is disposed along the base end 29 of the hood 6 at a location corresponding to the hood engagement portion 12 of the fixing ring engagement partition wall 10.

Further, an engagement hole 31 through which a hook portion (not shown) provided in the hood engaging portion 12 of the fixing ring engaging partition wall 10 can be inserted is opened on the inner surface of the engaging piece portion 30. Yes.

An inclined surface 32 is formed in the engagement hole 31 from the inner surface of the engagement piece 30 toward the engagement hole 31, so that the hood 6 is rotated in the circumferential direction of the opening 3. In this case, a hook portion (not shown) fitted in the engagement hole 31 can be smoothly removed from the engagement hole 31 by the inclined surface 32.

Hereinafter, the mounting state of the LED unit, the fixing ring, and the hood in the traffic signal lamp device to which the present invention is applied will be described in detail.

As shown in FIG. 1, the LED unit 4, the fixing ring 5, and the hood 6 are attached to the opening 3 of the housing 2 in this order.
Before installing the LED unit 4, a power cord (not shown) wired in the housing 2 is pulled out from the opening 3 and connected to a wiring cord (not shown) of the LED unit 4.

Here, as shown in FIG. 5, an annular packing having a repulsive force or elastic force such as rubber or urethane between the packing mounting plate portion 8 of the opening 3 and the packing engaging projection 9. 33 is pushed in and attached.

The packing 33 attached in this way has a thickness such that its upper end surface 34 is positioned beyond the packing engaging projection 9.

Next, the board housing portion 17 of the LED unit 4 is housed in the housing 2 from the opening 3 such that the lower surface 35 of the mooring housing portion 18 of the LED unit 4 is placed on the upper end surface 34 of the packing 33. .

Here, as shown in FIG. 2, with respect to the protrusion 14 of the fixing ring engaging portion 11 disposed at each predetermined position on the fixing ring engaging partition wall 10 as shown in FIG. As shown, the engagement grooves 21 of the fixing ring 5 correspond to each other.

Then, the protrusion 14 is inserted into the cavity 22 of the engagement groove 21 by pushing the opening 25 of the engagement groove 21 from above the protrusion 14 of the fixing ring engaging portion 11.

Thus, the fixing ring 5 is fitted between the fixing ring engaging partition wall 10 and the peripheral side surface 36 of the lens portion 16 of the LED unit 4.

Subsequently, the fixing ring 5 is rotated in the direction of the arrow C in FIG. 4, so that the protrusion 14 rides on the engaging base portion 26 formed on the other end 24 side of the cavity portion 22 and is moored. To do. In this case, as shown in FIG. 5, the packing 33 is pushed down when the anchoring collar portion 18 of the LED unit 4 is pressed by the fixing ring 5.

Therefore, as shown in FIG. 8, the urging force generated when the engaging base 26 is pushed down by the projection 14 and the repulsive force when the packing (not shown) is pushed down are used for the fixing ring engaging portion 11. The mooring with the protrusion part 14 becomes firm.

On the other hand, when the fixing ring 5 is removed, the fixing ring 5 is rotated in the direction indicated by the arrow B in FIG. Canceled.

Further, as shown in FIG. 8, the fixing ring engaging portion 11 is provided with the groove portions 13 on both sides thereof, so that the protruding portion 14 can swing in the center direction of the opening portion 3.

In this way, the protrusion 14 swings toward the center of the opening 3, for example, fixing the other end 24 side of the cavity 22 in the engagement groove 21 of the fixing ring 5 to the fixing ring engaging partition wall 10. It can push in from the upper part of the projection part 14 arrange | positioned at the ring engaging part 11 for an object.

Thus, the protrusion 14 is fitted into the engagement groove 21 while being pushed and bent from the lower end of the engagement base 26 of the engagement groove 21 toward the center of the opening 3.

Thus, after attaching the LED unit 4 to the opening 3 with the fixing ring 5, the hood 6 is attached.

Here, as shown in FIGS. 9 and 10, the engagement piece 30 of the base end 29 of the hood 6 is connected to the fixing ring between the inner peripheral wall surface 7 of the opening 3 and the fixing ring engaging partition wall 10. It inserts from the position corresponding to the hook part 37 of the hood engaging part 12 of the wearing partition wall 10.

In this case, cut portions 15 are provided in the hood engaging portions 12 on both sides of the hook portion 37. Therefore, when the engaging piece 30 of the base end 29 of the hood 6 is inserted, the hook portion 37 of the hood engaging portion 12 is swung toward the center of the opening 3.

As a result, the engagement piece 30 of the base end 29 of the hood 6 gets over the hook portion 37 of the hood engaging portion 12 and the hook portion 37 is inserted into the engagement hole 31 of the engagement piece 30. 6 can be attached.

Further, when removing the hood 6, as shown in FIG. 10, the hood 6 is rotated in the direction of arrow D (circumferential direction of the inner peripheral wall surface) in the figure. In this case, the engaging piece 30 of the base end 29 of the hood 6 moves and the hook portion 37 of the hood engaging portion 12 comes into contact with the inclined surface 32 of the engaging hole portion 31 and smoothly engages. The hood 6 can be removed by detaching from the joint hole 31.

In this embodiment, the groove portion or the cut portion is provided on both sides of the protrusion portion, but it is not always necessary to provide the groove portion or the cut portion.

For example, a structure in which a protrusion or hook part is simply provided on a partition wall for attaching a fixing ring may be used. However, it is easy to attach and detach a fixing ring or a hood by providing a groove part or a notch part. In this case, it is desirable to provide a groove or a notch.

In this embodiment, the fixing ring or the hood can be attached and detached by rotating it forward and backward, but it is not always necessary to rotate forward and backward.

For example, any mechanism can be used as long as it can be easily attached and detached without using a tool or the like, but the fixing ring or the hood is rotated in that it can be securely and firmly attached. It is desirable to make it.

In the traffic signal lamp of the present invention having the above-described configuration, the LED unit and the hood can be manually attached to the housing without using a fastening member such as a screw.

In addition, since the wiring can be connected from the housing through the opening before the LED unit is attached, the LED unit can be easily attached.

Also, replacement of the LED unit can be done manually without opening the housing itself, and can be manually attached / detached from the front of the opening without using a tool or the like.

Furthermore, the fixing ring and the hood can be attached or detached by rotating them forward or backward, so that the workability is good and they can be securely attached without being easily removed due to impact or the like.

Also, by molding each part such as the housing, LED unit, and hood with a synthetic resin material, it is possible to realize a light traffic light with excellent waterproofness.

DESCRIPTION OF SYMBOLS 1 Traffic signal lamp 2 Housing 3 Opening part 4 LED unit 5 Fixing ring 6 Hood 7 Inner peripheral wall surface 8 Packing mounting plate part 9 Packing engagement protrusion 10 Fixed ring engagement partition wall 11 Fixing ring engagement part 12 Hood engaging portion 13 Groove portion 14 Protruding portion 15 Cutting portion 16 Lens portion 17 Substrate storage portion 18 Anchoring flange portion 19 Anchor portion 20 Outer peripheral wall 21 Engaging groove portion 22 Cavity portion 23 One end 24 Other end 25 Opening portion 26 Engaging base portion 27 Convex part 28 Engaging concave part 29 Base end 30 Engagement piece part 31 Engagement hole part 32 Inclined surface 33 Packing 34 Upper end surface 35 Lower surface 36 Peripheral side surface 37 Hook part

Claims

A housing in which an opening is formed;
A packing mounting plate portion provided around the inner peripheral wall surface of the opening portion at a substantially right angle to the center direction of the opening portion;
A fixing ring engaging partition wall vertically provided around the packing mounting plate portion with a certain gap from the inner peripheral wall surface;
An annular packing placed between the fixing ring engaging partition wall and the inner peripheral end of the packing placing plate portion;
On the packing, an LED unit in which a collar portion whose lower end can be moored is provided,
A fixing ring that is in pressure contact with the upper end of the flange and that is attachable to and detachable from the fixing ring engaging partition wall;
A traffic signal lamp comprising: a hood whose base end can be inserted between the inner peripheral wall surface and the fixing ring engaging partition wall and which is detachable from the fixing ring engaging partition wall.
Protrusions formed at predetermined intervals on the inner peripheral wall surface of the fixing ring engagement partition wall;
The traffic signal lamp according to claim 1, further comprising an engaging groove portion on which an outer peripheral wall surface of the fixing ring corresponding to the protruding portion can moor the protruding portion.
The traffic signal lamp according to claim 2, wherein the fixing ring engaging partition wall on both sides of the protrusion has a groove portion whose upper end is open.
The engagement groove is formed along the circumferential direction of the fixing ring, one end of the engagement groove is an open portion for inserting a protrusion, and the other end of the engagement groove is for protrusion mooring. The traffic signal lamp according to claim 2, further comprising an engagement base.
On the outer peripheral wall surface of the fixing ring engagement partition wall, a hook portion protrudingly formed at predetermined intervals, and
The traffic signal lamp according to claim 1, 2, 3, or 4, wherein the hood base end corresponding to the hook portion includes an engaging piece portion on which the hook portion can be moored.
The traffic signal lamp according to claim 5, wherein the fixing ring engaging partition wall on both sides of the hook portion has a cut portion having an open lower end.
The traffic signal lamp according to claim 5, wherein the engagement piece portion of the hood has an engagement hole for inserting a hook portion.
The traffic signal lamp according to claim 7, wherein an inner surface of the engagement piece portion of the hood has an inclined surface inclined toward the engagement hole.
At least the fixing ring engaging partition wall, the fixing ring, and the hood are formed of a synthetic resin material having elastic force. Claims 1, 2, 3, 4, 5, 6, The traffic signal lamp according to claim 7 or 8.