JP6800907B2 - Lighting equipment - Google Patents

Description

The present invention relates to, for example, a lighting device constituting the head of a road light.

For example, a road light is installed on the side of a road such as an expressway or a general road, and is configured as a lighting light for illuminating the road. The road light has a support column and a lighting device fixed to the tip of the support column. The support column internally accommodates the wiring connected to the lighting equipment, and the lighting equipment is installed at a high place of about 10 m from the ground. Therefore, the installation of the lighting equipment on the pillars or the maintenance and inspection of the lighting equipment installed on the pillars is generally performed by using a tower vehicle or the like.

As a lighting device of this type, for example, in Patent Document 1, the fixture main body is divided into a mounting chamber and a light source chamber, a strut mounting tool to be attached to the tip of a strut is arranged in the mounting chamber, and a light emitting element is provided in the light source chamber. A lighting fixture in which a light source unit having a light source unit is arranged, the top surface of the mounting chamber is opened, and a lid covering the opening is provided so as to be openable and closable around an opening / closing shaft provided on the top surface of the fixture body. It is disclosed. As a result, the mounting chamber is opened to the outside while ensuring the airtightness of the light source chamber, enabling wiring connection and maintenance and inspection thereof.

Japanese Patent No. 5966795

However, in the lighting fixture described in Patent Document 1, in order to maintain the open posture of the lid, it is necessary to separately arrange the support on the lid and the fixture body, which not only increases the number of parts but also increases the number of parts. The operation of the support that accompanies the opening and closing of the lid is troublesome and causes a decrease in workability.

In view of the above circumstances, an object of the present invention is to provide a lighting device capable of maintaining an open posture of a lid without requiring a separate support.

In order to achieve the above object, the lighting device according to one embodiment of the present invention includes a device main body and a lid.
The device body has a light emitting portion, a fixed portion, and an intermediate portion. The light emitting unit has a built-in light source. The fixed portion faces the light emitting portion in the first axial direction and is configured to be connectable to a support. The intermediate portion is provided between the light emitting portion and the fixed portion, and forms a working room for accommodating a terminal block electrically connected to the light emitting portion.
The lid body is provided with a first end portion on the light emitting portion side, a second end portion on the side opposite to the first end portion, and the first shaft provided at the second end portion. It has a rotating shaft portion parallel to the second axial direction orthogonal to each other. The lid is rotatably attached to the intermediate portion between a first posture that closes the work chamber and a second posture that opens the work chamber.
The intermediate portion has a bearing portion. The bearing portion is provided in the first groove portion for accommodating the rotation shaft portion in the first posture and the first groove portion, has a groove width narrower than that of the first groove portion, and has the second groove width. Includes a second groove capable of accommodating the rotating shaft portion in the posture of.
The rotating shaft portion has a first shaft diameter in the first axial direction in the first posture, and is larger than the first shaft diameter in the first axial direction in the second posture. It has a small second shaft diameter.

In the above-mentioned lighting equipment, the lid has a rotating shaft portion that is accommodated in the second groove portion of the bearing portion when the work room is opened (second posture). Since the rotating shaft portion is formed to have a smaller shaft diameter along the first axial direction when the work chamber is opened than when the work chamber is closed (first posture), the rotating shaft portion is formed by engaging with the second groove portion. Rotation is restricted. As a result, the open posture of the lid can be maintained without the need for a separate support.

The rotating shaft portion may have a curved first peripheral surface portion and a flat second peripheral surface portion.

The second groove portion may have a flat surface portion facing the second peripheral surface portion in the second posture.

The device body may further have a cover portion that covers the first groove portion.

The lid may further have a stopper piece. The stopper piece is provided at the second end portion, is separated from the bearing portion in the first posture, and comes into contact with the bearing portion in the second posture.

The device body may have a base plate having a transmitting portion through which light emitted from the light source is transmitted, and a top plate attached to the base plate and supporting the light source. The lid is attached to the base plate adjacent to the top plate in the first position.

The connecting portion may be configured to be rotatable about an axis parallel to the second axis with respect to the intermediate portion.

A lighting device according to another embodiment of the present invention includes a device body and a lid.
The device body has a light emitting portion, a fixed portion, and an intermediate portion. The light emitting unit has a built-in light source. The fixed portion faces the light emitting portion in the first axial direction and is configured to be connectable to a support. The intermediate portion is provided between the light emitting portion and the fixed portion, and forms a working room for accommodating a terminal block electrically connected to the light emitting portion.
The lid body is provided with a first end portion on the light emitting portion side, a second end portion on the side opposite to the first end portion, and the first shaft provided at the second end portion. It has a rotating shaft portion parallel to the second axial direction orthogonal to each other. The lid is rotatably attached to the intermediate portion between a first posture that closes the work chamber and a second posture that opens the work chamber.
The intermediate portion has a bearing portion including a groove portion for accommodating the rotating shaft portion.
The lid has a stopper piece. The stopper piece is provided at the first end portion, is separated from the bearing portion in the first posture, and comes into contact with the bearing portion in the second posture.

In the above lighting equipment, the lid has a stopper piece that comes into contact with the bearing portion when the work room is opened (second posture). As a result, the open posture of the lid can be maintained without the need for a separate support.

As described above, according to the lighting device of the present invention, it is possible to maintain the open posture of the lid body without requiring a separate support.

It is an overall perspective view of the lighting equipment which concerns on one Embodiment of this invention. It is a side view of the said lighting equipment. It is a top view of the said lighting equipment. It is a front view of the said lighting equipment. It is a bottom view of the said lighting equipment. It is a rear view of the said lighting equipment. It is a top view which shows the open posture of the lid body in the said lighting equipment. It is a side view which shows the open posture of the lid body in the said lighting apparatus. It is a perspective view of the said lid body. It is a top view of the lid body. It is sectional drawing of the main part of the said lighting equipment. It is the same cross-sectional view as FIG. 11 which shows the procedure of opening operation of the lid body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 is an overall perspective view of the lighting device 100 according to an embodiment of the present invention, FIG. 2 is a side view, FIG. 3 is a plan view, FIG. 4 is a front view, FIG. 5 is a bottom view, and FIG. 6 is a rear view. is there. In each figure, the X-axis, the Y-axis, and the Z-axis indicate three axial directions orthogonal to each other.

The lighting device 100 of the present embodiment is a lighting device that constitutes the head of a road light. The lighting device 100 includes a device body 110. The planar shape of the device body 110 is approximately rectangular, the length dimension along the X-axis direction is, for example, about 600 mm, and the width dimension along the Y-axis direction is, for example, about 300 mm, and the road surface is provided through a support column (not shown). It will be installed at a height of 8m to 10m.

The device main body 110 has a light emitting unit 10, a fixing unit 20, and an intermediate unit 30.

The light emitting unit 10 is located on one end side (road side) of the device main body 110. The light emitting unit 10 incorporates a light source 11 in which a plurality of semiconductor light emitting elements such as LEDs (Light Emitting Diodes) are arranged in a plane, and is placed on the road surface via a transmitting unit 12 that forms a part of the bottom of the device main body 110. It is configured to be able to irradiate illumination light. The emission color of the light source 11 is not particularly limited, and may be white or another color such as orange.

The fixing portion 20 is located on the other end side (road shoulder side) of the device main body 110. The fixing portion 20 is a support mechanism 22 that rotatably supports a substantially cylindrical connecting pipe 21 connected to the tip end portion of the support column and the connecting pipe 21 with respect to the intermediate portion 30 over a predetermined angle range around the Y axis. And have. When the support column is a straight pole type extending in the vertical direction, the fixing portion 20 is fixed at the rotation position shown by the solid line in FIG. 2, and the support column bends toward the road side from the middle and extends substantially in the horizontal direction. In the case of the arm type, it is fixed at the rotation position indicated by the alternate long and short dash line in FIG.

The intermediate portion 30 is provided between the light emitting portion 10 and the fixed portion 20. FIG. 7 is a plan view of the device main body 110 showing the internal configuration of the intermediate portion 30. The top surface of the intermediate portion 30 is open, and a working room 32 for accommodating a terminal block 31 electrically connected to the light emitting portion 10 is formed inside the intermediate portion 30. The terminal block 31 is further electrically connected to a power supply wiring (not shown) built in the support column.

The work room 32 is a work space for installing the device main body 110 or performing maintenance and inspection work of the lighting device 100 installed on the support column. The lighting device 100 further includes a lid 50 that normally seals the work room 32 and opens the work room 32 during work. The lid 50 is rotatably attached to the intermediate portion 30, as will be described later. FIG. 8 is a side view of the lighting device 100 showing the open posture of the lid 50 (FIGS. 7 and 8 omit the illustration of the fixing portion 20).

Subsequently, the details of each part of the lighting device 100 will be described.

The device main body 110 has a housing 40 including a base plate 41 and a top plate 42. The base plate 41 forms a bottom portion of the light emitting portion 10, a part of the fixing portion 20, and an intermediate portion 30. The top plate 42 supports the light source 11 and forms the top surface portion of the light emitting portion 10. The base plate 41 and the top plate 42 are typically made of a metal material such as an aluminum alloy.

As shown in FIG. 2, for example, the base plate 41 has a substantially rectangular flat plate portion 41A forming the light emitting portion 10 and a three-dimensional portion 41B forming the intermediate portion 30 (working room 32). As shown in FIG. 5, the flat plate portion 41A has a transmission portion 12 through which light emitted from the light source 11 is transmitted. The transmission portion 12 is made of a transparent glass or plastic material and forms a part of the base plate 41.

The top plate 42 is mounted on the flat plate portion 41A via a seal ring (not shown). Although not shown, the flat plate portion 41A is provided with a partition wall that partitions the space for accommodating the light source 11 and the work room 32. The seal ring seals the light source 11 by being in close contact with the three sides of the flat plate portion 41A on one end side and the partition wall. A plurality of ribs 42a extending parallel to the X-axis direction are formed on the upper surface of the top plate 42. The light source 11 is supported inside the formation region of the ribs 42a (inner surface side of the top plate 42). The top plate 42 is fixed to the base plate 41 via a plurality of screw members inserted into the four corners thereof.

The three-dimensional portion 41B has a planar shape in which the width dimension along the Y-axis direction gradually decreases from the flat plate portion 41A toward the end portion on the fixed portion 20 side. The support mechanism 22 of the fixing portion 20 is attached to the bottom portion of the three-dimensional portion 41B. A bearing portion 43 accommodating the rotation shaft portion 51 of the lid 50 is integrally formed at the center portion in the width direction of the end portion of the three-dimensional portion 41B on the fixed portion 20 side. A seal ring 33 is attached to the upper surface of the three-dimensional portion 41B, and the lid 50 is fixed to the upper surface of the three-dimensional portion 41B via the seal ring 33.

The lid 50 has a closed posture (first posture) for closing the work chamber 32 as shown in FIGS. 1 to 6 and an open posture (second posture) for opening the work chamber 32 as shown in FIGS. 7 and 8. It is rotatably attached to the bearing portion 43 of the intermediate portion 30. The lid 50 is attached to the base plate 41 (upper surface of the three-dimensional portion 41B) adjacent to the top plate 42 by a plurality of screw members in the closed posture. On the other hand, in the open posture, as shown in FIG. 8, the lid 50 is set at a position rotated by approximately 90 degrees or more around the rotation shaft portion 51 from the first posture.

FIG. 9 is a perspective view of the lid 50, and FIG. 10 is a plan view thereof. The lid 50 has a first end 501 on the light emitting portion 10 side and a second end 502 on the opposite side of the first end 501. The lid 50 has a three-dimensional shape in which the width dimension along the Y-axis direction and the thickness dimension along the Z-axis direction gradually decrease from the first end portion 501 to the second end portion 502.

The lid 50 has a pair of rotating shafts 51 parallel to the Y-axis direction. The rotating shaft portion 51 is provided at the tip of a pair of support portions 53 provided at the central portion in the width direction of the second end portion 502 so as to face each other in the Y-axis direction. The pair of support portions 53 are formed so as to project parallel to the X-axis direction from the second end portion 502 so as to sandwich the bearing portion 43 from the Y-axis direction (see FIGS. 2 and 6).

A plate-shaped stopper piece 52 that also projects parallel to the X-axis direction from the second end portion 502 is provided between the pair of support portions 53. The stopper piece 52 is separated from the upper surface of the bearing portion 43 in the Z-axis direction in the closed posture (first posture) of the lid 50 (see FIGS. 3, 6, and 11), and the stopper piece 52 is separated from the upper surface of the bearing portion 43 in the Z-axis direction (see FIGS. In the posture of 2), it is configured to abut the bearing portion 43 in the X-axis direction (see FIG. 12B).

FIG. 11 is a cross-sectional view of a main part of the lighting device 100 showing the relationship between the rotating shaft portion 51 of the lid body 50 and the bearing portion 43, and FIG. 12 is the same as FIG. 11 showing the procedure for opening the lid body 50. It is a sectional view.

As shown in FIG. 11, the bearing portion 43 has an engaging groove 60 capable of accommodating the rotating shaft portion 51 of the lid body 50. Engagement grooves 60 are provided at both ends in the width direction of the upper surface of the bearing portion 43 so as to accommodate a pair of rotation shaft portions 51.

Here, the rotation shaft portion 51 of the lid body 50 has a curved first peripheral surface portion 511 and a flat second peripheral surface portion 512 (see FIG. 11). The first peripheral surface portion 511 is typically formed of a cylindrical curved surface (cylindrical surface), and the second peripheral surface portion 512 is formed by cutting out a part of the cylindrical surface in the axial direction thereof. It is composed of planes. Therefore, the rotating shaft portion 51 has a shaft diameter in a direction parallel to the second peripheral surface portion 512 (hereinafter, also referred to as a first shaft diameter) and a shaft diameter in a direction orthogonal to the second peripheral surface portion 512 (hereinafter, referred to as a shaft diameter). , Also referred to as the second shaft diameter), and the second shaft diameter is smaller than the first shaft diameter.

In the present embodiment, as shown in FIG. 11, in the closed posture (first posture) of the lid 50, the rotating shaft portion 51 has a first shaft diameter in the X-axis direction and a second shaft diameter of Z. It is housed in the engaging groove 60 so as to be parallel to each other in the axial direction. That is, in the closed posture, the rotating shaft portion 51 is accommodated in the engaging groove 60 so that the second peripheral surface portion 512 faces the second groove portion 62. Therefore, the rotating shaft portion 51 has the first shaft diameter in the X-axis direction in the closed posture of the lid 50, and the second shaft diameter in the X-axis direction in the open posture of the lid 50. Will have.

On the other hand, the engaging groove 60 has a first groove portion 61 and a second groove portion 62 provided at the bottom of the first groove portion 61. The first groove portion 61 is formed in a size capable of accommodating the rotation shaft portion 51 in the closed posture of the lid body 50. The second groove portion 62 is formed in a size capable of accommodating the rotation shaft portion 51 in the open posture of the lid body 50.

Therefore, the groove width of the second groove portion 62 along the X-axis direction is set to a value larger than the second shaft diameter and smaller than the first shaft diameter. As a result, the second groove portion 62 can accommodate the rotation shaft portion 51 in the open posture of the lid body 50, and can regulate the rotation of the rotation shaft portion 51 around the Y axis. ..

Further, the second groove portion 62 has a curved surface portion 621 and a flat surface portion 622. The curved surface portion 621 and the flat surface portion 622 form a part of the inner wall of the second groove portion 62. The curved surface portion 621 is formed at the bottom of the second groove portion 62, and is formed, for example, by a cylindrical surface corresponding to the first peripheral surface portion 511 of the rotation shaft portion 51. On the other hand, the flat surface portion 622 is located on the light emitting portion 10 side of the second groove portion 62, and is formed by a vertical plane parallel to the Z-axis direction. That is, the flat surface portion 622 faces the second peripheral surface portion 512 of the rotating shaft portion 51 in the open posture of the lid body 50. As a result, in the opening operation of the lid 50, the rotating shaft portion 51 is easily accommodated in the second groove portion 62.

The device main body 110 further has a cover portion 63 that covers the engaging groove 60 (first groove portion 61). The cover portion 63 is typically composed of a press-molded metal plate fixed to the bearing portion 43 via a screw member 64. By covering the engaging groove 60 with the cover portion 63, it is possible to reliably prevent the rotating shaft portion 51 from being disengaged from the engaged state with the engaging groove 60.

In the lighting device 100 of the present embodiment configured as described above, when the work room 32 is opened to perform predetermined work (wiring connection work, maintenance and inspection work), the lid 50 rotates with respect to the device body 110. It is operated dynamically.

At this time, after the plurality of screw members fixing the lid body 50 to the base plate 41 are removed, the lid body 50 is rotated around the rotation shaft portion 51 as a fulcrum. Due to the rotation of the lid 50, the rotation shaft portion 51 rotates inside the first groove portion 61 as shown in FIG. 12A. Then, when the rotation shaft portion 51 rotates to a position where the planar second peripheral surface portion 512 faces the light emitting portion 10 side (right side in the drawing), the shaft diameter of the rotation shaft portion 51 along the X-axis direction is increased. Is reduced from the first shaft diameter to the second shaft diameter, so that the rotating shaft portion 51 engages with the second groove portion 62 as shown in FIG. 12B.

The weight of the lid 50 can be utilized for the engagement of the rotating shaft portion 51 with the second groove portion 62. Further, since the second groove portion 62 has the flat surface portion 622, it is possible to guide the movement (fall) of the rotation shaft portion 51 to the second groove portion 62. By engaging the rotating shaft portion 51 with the second groove portion 62, the lid 50 is restricted from rotating in either the opening direction or the closing direction.

As described above, the rotating shaft portion 51 of the lid body 50 is formed so that the shaft diameter along the X-axis direction in the open posture is smaller than that in the closed posture, so that the rotating shaft portion 51 rotates by engaging with the second groove portion 62. Can be regulated. As a result, the lid 50 can be maintained in its open position without the need for a separate support.

Further, in the present embodiment, when the lid 50 reaches the open posture, the stopper piece 52 comes into contact with the end portion of the bearing portion 43. As a result, even if the lid body 50 is to be further rotated in the opening direction, the contact action between the stopper piece 52 and the bearing portion 43 can prevent the lid body 50 from further rotating in the opening direction. As a result, the rotation of the lid 50 can be restricted at a predetermined angle position without applying a torsional stress to the rotation shaft portion 51 in the second groove portion 62.

When the predetermined work in the work room 32 is completed, the lid 50 is rotated from the open posture shown in FIG. 12B to the closed posture shown in FIG. In this case, by pulling up the lid 50 upward, the engagement between the rotating shaft portion 51 and the second groove portion 62 is released. As a result, the rotation of the rotation shaft portion 51 in the first groove portion 61 in the closing direction is allowed. Since the first groove portion 61 is covered with the cover portion 63, the rotation shaft portion 51 is prevented from being detached from the bearing portion 43.

As described above, according to the present embodiment, the open posture of the lid 50 can be maintained without the need for a separate support. As a result, the number of parts of the lighting device 100 can be reduced, and the lid 50 can be easily opened and closed. Further, since the above configuration is adopted for the hinge portion between the lid 50 and the device main body 110, the above-mentioned effects can be obtained with a simple configuration.

<Other Embodiments>
The lighting device 100 according to the above-described embodiment regulates the rotation of the lid 50 with respect to the bearing 43 by making the shaft diameter of the rotating shaft 51 different between the closed posture and the open posture of the lid 50. Although it is configured to do so, instead of this, it may be configured to maintain the open posture of the lid 50 only by the stopper piece 52. In this case, the shaft diameter of the rotating shaft portion 51 may be constant in the closed posture and the open posture, and the formation of the second groove portion 62 becomes unnecessary. Even in such a configuration, the open posture of the lid 50 can be maintained without the need for a separate support. Further, the open posture of the lid 50 may be set to a rotation angle that can suppress the rotation in the closing direction by utilizing the weight of the lid 50. As a result, it is possible to prevent the lid body 50 from inadvertently rotating in the closing direction.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made.

For example, in the above embodiment, only one bearing portion 43 is provided at the end portion of the intermediate portion 30, but a plurality of bearing portions 43 may be provided in the width direction of the end portion. Further, the rotating shaft portion 51 of the lid 50 is not limited to the case where it is divided in the axial direction as in the above-described embodiment, and may be composed of one continuous shaft portion.

Further, in the above embodiment, in order to make the first shaft diameter of the rotating shaft portion 51 of the lid 50 in the closed posture different from the second shaft diameter in the open posture, the rotating shaft portion 51 has a curved surface. A first peripheral surface portion 511 having a shape and a second peripheral surface portion 512 having a flat shape are formed, but the cross-sectional shape of the rotating shaft portion 51 is not limited to this. For example, the cross-sectional shape of the rotating shaft portion 51 may be formed into a polygonal shape in which two opposing sides are planar, such as a quadrangle or a hexagon.

Further, in the above embodiment, the lighting device 100 is configured as a lighting device constituting the head of the road light, but the present invention is not limited to this, and the present invention is also applied to a lighting device installed in a park, a plaza, a parking lot, or the like. Applicable.

10 ... Light emitting part 12 ... Transmitting part 20 ... Fixed part 30 ... Intermediate part 31 ... Terminal block 32 ... Working room 40 ... Housing 41 ... Base plate 42 ... Top plate 43 ... Bearing part 50 ... Lid body 51 ... Rotating shaft part 52 ... Stopper piece 61 ... First groove 62 ... Second groove 63 ... Cover 100 ... Lighting equipment 110 ... Equipment body

Claims (7)

A light emitting unit having a built-in light source, a fixed portion that faces the light emitting unit in the first axial direction and is configured to be connectable to a support, and a light emitting unit provided between the light emitting unit and the fixed portion. A device body having an intermediate portion forming a working room for accommodating a terminal block electrically connected to and
A second end provided on the light emitting portion side, a second end portion on the opposite side of the first end portion, and a second end portion provided at the second end portion and orthogonal to the first axis. It has a rotating shaft portion parallel to the axial direction, and is rotatably attached to the intermediate portion between a first posture for closing the work chamber and a second posture for opening the work chamber. Equipped with a lid that can be
The intermediate portion is provided in a first groove portion for accommodating the rotation shaft portion in the first posture and the first groove portion, and has a groove width narrower than that of the first groove portion, and the second groove portion. It has a bearing portion including a second groove portion capable of accommodating the rotating shaft portion by its own weight of the lid body in the posture of
The rotating shaft portion has a first shaft diameter in the first axial direction in the first posture, and is larger than the first shaft diameter in the first axial direction in the second posture. A lighting device having a small second shaft diameter, the first shaft diameter being larger than the groove width of the second groove portion. The lighting device according to claim 1.
The rotating shaft portion is a lighting device having a curved first peripheral surface portion and a flat second peripheral surface portion. The lighting device according to claim 2.
The second groove portion is a lighting device having a flat surface portion facing the second peripheral surface portion in the second posture. The lighting device according to any one of claims 1 to 3.
The device main body is a lighting device further having a cover portion that covers the first groove portion. The lighting device according to any one of claims 1 to 4.
A lighting device further comprising a stopper piece provided at the second end portion, in which the lid body is separated from the bearing portion in the first posture and abuts on the bearing portion in the second posture. The lighting device according to any one of claims 1 to 5.
The device body
A base plate having a transmitting portion through which light emitted from the light source is transmitted,
With a top plate attached to the base plate and supporting the light source,
The lid body is a lighting device attached to the base plate adjacent to the top plate in the first posture. The lighting device according to any one of claims 1 to 6.
The fixing portion is a lighting device configured to be rotatable around an axis parallel to the second axis with respect to the intermediate portion.

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