JP2022117045A - Lighting device - Google Patents

Abstract

To enable a cover to be held in an open state without increasing the size of a device body.SOLUTION: A lighting device includes: a housing connection part 12 connected to an outer surface 2A of a housing 2; and a cover connection part 14 connected to a surface 3A of a cover 3. An elongated hole 17 is provided at the housing connection part 12, and the cover connection part 14 is provided with a shaft member B which moves in the elongated hole 17 in conjunction with the cover 3 being opened or closed. The cover connection part 14 has a contact part 24 which contacts with an outer shape part of the housing connection part 12 when the cover 3 is opened, and the housing connection part 12 has a hook part 19 on which the contact part 24 hooks. When the cover 3 is opened, the contact part 24 moves along the outer shape part of the housing connection part 12 to cause the shaft member B to move in the elongated hole 17 in conjunction with the movement of the contact part 24. When the cover 3 reaches a predetermined open angle, the contact part 24 hooks on the hook part 19 to hold the cover 3 in an open state.SELECTED DRAWING: Figure 1

Description

The present invention relates to lighting fixtures.

A lighting fixture having a fixture body with an open front and a translucent cover that closes the front of the fixture body is known, and such lighting fixtures are widely used for outdoor lighting such as tunnel lighting and street lighting. It is
A lighting fixture of this type is configured such that a cover can be opened and closed for work such as maintenance and part replacement, and an operator performs work while holding the cover in an open position with one hand. Also known is a tunnel lighting fixture provided with a stopper that holds the cover in an open state (see, for example, Patent Document 1).

JP 2013-232296 A

However, the technique of Patent Literature 1 has a problem in that a mechanism related to the stopper needs to be provided inside the instrument body, which increases the size of the instrument body, thereby increasing the cost.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lighting fixture that can hold a cover in an open state without increasing the size of the fixture body.

The present invention provides a lighting fixture comprising a housing having an opening on an emission surface, and a cover closing the opening, wherein the housing connecting portion is connected to the outer surface of the housing, and the surface of the cover. and a cover connecting portion connected to the cover connecting portion, and a long hole having a longitudinal direction is provided in either the housing connecting portion or the cover connecting portion, and the long hole is opened as the cover is opened and closed. A moving shaft member is provided on the other, and one of the housing connection portion and the cover connection portion has a contact portion that contacts the outer shape portion of the other when the cover is opened, and the other has a contact portion. , the contact portion has a hook portion to be hooked, and when the cover is opened, the contact portion moves along the other outer shape portion, so that the shaft member moves to one end of the long hole along with the movement. When the cover is moved from the side to the other end and the cover reaches a predetermined opening angle, the contact portion is caught by the hook portion, thereby holding the cover in the open state.

According to the present invention, in the above-described lighting fixture, the hook is recessed in a direction in which the shaft member moves due to the weight of the cover, and the contact portion enters the recess to be hooked.

According to the present invention, in the above lighting fixture, the housing connecting portion and the cover connecting portion are connected so that the shaft member is rotatably supported by the elongated hole, thereby supporting the cover so as to be openable and closable. It is characterized in that it constitutes a hinge that

According to the present invention, in the above lighting fixture, the longitudinal direction of the elongated hole faces the direction extending from the front side of the housing where the emission surface is provided to the rear side, and the opening includes the cover and the housing. A packing is provided to be sandwiched with the housing, and the shaft member is positioned on the front side within the long hole when the cover is closed.

According to the present invention, in the above lighting fixture, the elongated hole is formed in the housing connecting portion, the shaft member is formed in the cover connecting portion, and the outer portion is opposite from the output surface side of the housing. It is characterized by including a slanted portion that is slanted toward the side so that the distance from the end portion of the long hole on the side closer to the emission surface of the housing increases.

According to the present invention, in the above-described lighting fixture, the housing is installed with the emission surface directed downward from the horizontal direction.

According to the present invention, the cover can be held open without increasing the size of the instrument body.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the whole structure of the tunnel lighting fixture which concerns on embodiment of this invention. It is a figure which shows the installation state of a tunnel lighting fixture, (A) shows the state with a cover closed, (B) shows the state with a cover open. 1 is an exploded perspective view of a tunnel lighting fixture; FIG. It is a figure which shows the opening-and-closing mechanism of the state provided in the tunnel lighting fixture, (A) is an enlarged view of an opening-and-closing mechanism, (B) is sectional drawing of an opening-and-closing mechanism. It is a figure which shows a housing|casing connection part, (A) is a top view of a housing|casing connection part, (B) is a side view of a housing|casing connection part. It is a perspective view of a cover connection part. FIG. 10 is a diagram showing the state of the opening/closing mechanism when the cover is opened, and showing the state where the cover is not held so as not to rotate; FIG. 10 is a diagram showing the state of the opening/closing mechanism during the opening operation of the cover, showing the state in which the cover is held so as not to rotate;

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing the overall configuration of a tunnel lighting fixture 1 according to this embodiment. 2A and 2B show the installation state of the tunnel lighting fixture 1. FIG. 2A shows the state in which the cover 3 is closed, and FIG. 2B shows the state in which the cover 3 is open.
As shown in FIG. 1, the tunnel lighting fixture 1 has its front surface configured as an emission surface 1A, and as shown in FIG. It is installed on the wall surface A1 and illuminates the road surface by emitting illumination light from the emission surface 1A.

As shown in FIG. 1, the tunnel lighting fixture 1 of the present embodiment includes a substantially rectangular housing 2 having an opening 7 (FIG. 3) on the output surface 1A side, and the opening 7 of the housing 2. A cover 3 made of a substantially rectangular plate-shaped translucent material, an appropriate number (two in the illustrated example) of opening and closing mechanisms 4 for supporting the cover 3 so that it can be opened and closed, and the cover 3 in the closed state are attached to the housing 2. An appropriate number (two in the illustrated example) of fasteners 5 for locking are provided. As the fastener 5, an appropriate type of fitting having a function of locking the cover 3 to the housing 2 so that it cannot be opened is used, and in this embodiment, a snap lock is used.

Further, the tunnel lighting fixture 1 is provided with mounting plates 6 at both ends of the housing 2, and as shown in FIG. be done. These mounting plates 6 rotatably support the housing 2 and are configured as angle adjusting plates that enable the mounting angle of the housing 2 to be adjusted.

FIG. 3 is an exploded perspective view of the tunnel lighting fixture 1. FIG.
As shown in the figure, the housing 2 includes a housing central portion 30 made of a member having a substantially U-shaped cross section with both ends open, and a pair of housing side plates closing the open portions at both ends of the housing central portion 30. 31 and , it is configured as a substantially rectangular parallelepiped box having an opening 7 in the front. Inside the housing 2 are a light source for illumination light (for example, a light emitting element or a discharge lamp), an optical control member for controlling the light from the light source (reflector, etc.), a device for controlling lighting of the light source, a power source, and the like. Various members (not shown) such as related parts are arranged.

In the tunnel lighting fixture 1, a packing 8 having a shape (substantially rectangular in this embodiment) along the edge of the opening 7 is attached to the housing 2, and the packing 8 is provided between the cover 3 and the housing 2. The opening 7 is kept watertight by being sandwiched between the two. Furthermore, side packings 32 are also provided between the housing central portion 30 and the housing side plates 31 in the housing 2 , and the end portions of the housing 2 are kept watertight by the side packings 32 .

Next, the opening/closing mechanism 4 of the cover 3 will be described in detail.
4A and 4B are views showing the opening/closing mechanism 4 installed in the tunnel lighting fixture 1. FIG. 4A is an enlarged view of the opening/closing mechanism 4, and FIG. 4(A) and 4(B) show a state in which the cover 3 is open.
The opening/closing mechanism 4 is a member provided outside the housing 2 as shown in FIG. ) and a cover connection portion 14 screwed (that is, connected) to the surface 3A of the cover 3 , and the case connection portion 12 and the cover connection portion 14 are connected to the cover 3 is rotatably supported on the housing 2, forming a hinge.
The housing connecting portion 12 is provided at the upper edge portion 7A1 of the opening 7, and the cover connecting portion 14 is hingedly connected to the housing connecting portion 12 so that the cover can be opened as shown in FIG. 3 is mounted as a top-opening lid that opens upward (on the side of the upper edge 7A1 of the opening 7) from below (on the side of the lower edge 7A2 of the opening 7).

5A and 5B are diagrams showing the configuration of the housing connection portion 12, FIG. 5A being a top view of the housing connection portion 12, and FIG.
The housing connection portion 12 is a member made of an appropriate metal material, and as shown in FIG. and a pair of plate-like support portions 16 formed by raising both ends of the first fixing portion 15 on the front end 15B side in a substantially L shape, and such a pair of As shown in FIG. 5B, the support portion 16 is formed with elongated holes 17 having a longitudinal direction F, and these elongated holes 17 are used to rotate a rotating shaft portion 20 of the cover connecting portion 14, which will be described later. movably supported. Note that the longitudinal direction F will be described later.

FIG. 6 is a perspective view of the cover connecting portion 14. FIG.
The cover connection portion 14 is a member made of an appropriate metal material, and as shown in FIG. 25, a rotating shaft portion 20 provided at the upper end portion of the second fixing portion 25, and an engaging portion 22 for holding the cover 3 in a closed state. and a pair of shaft support pieces 21 that support the shaft member B.
A hinge is formed by connecting the cover connecting portion 14 and the housing connecting portion 12 so that the end portion of the shaft member B passes through the long hole 17 of the housing connecting portion 12. A cover connecting portion 14 is configured to be rotatable with respect to the housing connecting portion 12 as a rotating shaft.

The engaging portion 22 is engaged when the cover connecting portion 14 rotates over a predetermined angle in the direction in which the cover 3 opens (hereinafter referred to as "opening direction C1") (that is, when the opening angle of the cover 3 reaches the predetermined angle). ), the cover 3 is held in the open state by the engagement.
More specifically, as shown in FIG. 6, the engaging portion 22 is a plate-like portion extending between the pair of shaft support pieces 21, and includes a substantially rectangular main body portion 23 and both ends of the main body portion 23. Each of the contact portions 24 abuts on the outer shape portion (surface portion) of the housing connecting portion 12 when the cover connecting portion 14 is rotated, and the outer shape As the cover connecting portion 14 rotates, it moves on the portion. In this embodiment, such a contour portion is the contour edge 18 of the support portion 16 (FIG. 5(B)).

On the other hand, as shown in FIG. 5(B), the outer edge 18 of the housing connecting portion 12 is formed with a notch-shaped stepped hook portion 19 on which the contact portion 24 is hooked. is formed at a position where the contact portion 24 reaches when the cover connection portion 14 rotates over a predetermined angle in the opening direction C1. Then, the contact portion 24 is caught by the hook portion 19, so that the cover connection portion 14 (that is, the cover 3) is held in a state in which the cover 3 cannot be rotated in the closing direction (hereinafter referred to as "closing direction C2"). be done. Further, the holding state of the cover connection portion 14 is released by removing the contact portion 24 from the hook portion 19, so that the cover connection portion 14 (that is, the cover 3) can rotate in the closing direction C2.

Note that the position of the hook portion 19 on the outer edge 18 can be appropriately changed according to the opening angle at which the cover 3 is held.

Here, in the tunnel lighting fixture 1 of the present embodiment, when the worker opens the cover 3 at the installation site, the contact portion 24 is automatically caught by the hook portion 19 due to the dead weight of the cover 3, and the worker can The cover 3 is held open without any operation, and this structure will be described in detail.

7 and 8 are diagrams showing the state of the opening/closing mechanism 4 when the cover 3 is opened. FIG. 7 shows the state in which the cover 3 is not held so as not to rotate, and FIG. is held in
As shown in FIG. 5B, in the case connecting portion 12, the longitudinal direction F of the long hole 17 that supports the shaft member B of the cover connecting portion 14 extends from the front side E1 to the rear side E2 of the case 2. It faces the direction (that is, the depth direction of the housing 2). As shown in FIG. 7, when the cover 3 is in the closed state (G1 in FIG. 7), the shaft member B is positioned at the front end portion 17E1 of the long hole 17, and the contact portion 24 is positioned at the support portion 16. is located away from the outer edge 18 of the . In this way, when the cover 3 is in the closed state, the shaft member B is positioned at the front end 17E1 of the long hole 17, so that the cover 3 is closer to the housing 2 than when it is positioned at the rear end 17E2. Since it is positioned on the front side E1, the packing 8 provided in the front opening 7 can be uniformly and firmly sandwiched between the cover 3 and the housing 2, and the waterproof performance can be improved.

When the cover connection portion 14 rotates in the opening direction C1 from the closed state of the cover 3, as shown in FIG. It abuts on the inclined portion 18A of the outer edge 18 . The inclined portion 18A is inclined substantially linearly downward from the front side E1 of the housing 2 toward the rear side E2 (that is, from the emission surface 1A toward the opposite side), and the contact portion 24 is connected to the cover. It is a portion that moves as the portion 14 rotates. Due to this inclination, the inclined portion 18A has a longer distance from the front side end 17E1 (the end closer to the exit surface 1A) of the long hole 17 from the front side E1 toward the rear side E2. As the contact portion 24 moves along with the rotation of the connection portion 14 in the opening direction C1 (that is, according to the rotation angle), the distance between the contact portion 24 and the elongated hole 17 also increases.

When the cover connecting portion 14 further rotates in the opening direction C1 from the state of G3 in FIG. 7, as shown in FIG. As a result, the contact portion 24 slides toward the hook portion 19 while contacting the inclined portion 18A of the outer edge 18 (G4, G5 in FIG. 8). As shown in FIG. 5B, the hooking portion 19 is recessed toward the front side E1. When the contacting portion 24 reaches the hooking portion 19 (G6 in FIG. 8), The member B is positioned at the rear end 17E2 of the long hole 17. As shown in FIG. In this state, as the shaft member B moves toward the front end portion 17E1 in the long hole 17, the contact portion 24 enters the hook portion 19 as shown in FIG. It will be caught in the part 19.

On the other hand, the tunnel lighting fixture 1 is installed in such a posture that the front emission surface 1A faces downward from the horizontal direction D, as shown in FIG. 2(A). Therefore, since a downward force is always applied to the shaft member B of the cover connecting portion 14 by the weight of the cover 3, a force is applied to the shaft member B to move it toward the front end portion 17E1.
That is, when the contact portion 24 reaches the recess of the hook portion 19, the weight of the cover 3 causes the shaft member B to move in the elongated hole 17 toward the front side end portion 17E1. automatically enters the recess of the hooking portion 19 and is caught by the hooking portion 19.例文帳に追加
As a result, when the operator only opens the cover 3, the abutting portion 24 is automatically caught by the hooking portion 19 and the cover 3 is held in the open state, and various maintenance work can be performed without holding the cover 3 by hand. be able to.

When the worker releases the hooking of the abutting portion 24, the cover 3 is pushed into the back side E2 of the housing 2 against the weight of the cover 3, thereby moving the shaft member B into the long hole 17 at the back side end. 17E2, the contact portion 24 is released from the recess of the hook portion 19, and the hook is released. As a result, the cover connecting portion 14 can be rotated in the closing direction C2, and the cover 3 can be closed.

According to this embodiment, the following effects are obtained.

The tunnel lighting fixture 1 of the present embodiment is a lighting fixture that includes a housing 2 having an opening 7 on the output surface 1A and a cover 3 that closes the opening 7, and is connected to the outer surface 2A of the housing 2. and a cover connection portion 14 connected to the front surface 3A of the cover 3 . Further, the housing connection portion 12 is provided with a long hole 17 having a longitudinal direction F, and the cover connection portion 14 is provided with a shaft member B that moves through the long hole 17 as the cover 3 is opened and closed. Further, the cover connection portion 14 has a contact portion 24 that contacts the outer shape portion (surface) of the case connection portion 12 when the cover 3 is opened, and the case connection portion 12 is caught by the contact portion 24. It has a hook portion 19 .
When the cover 3 is opened, the abutting portion 24 moves along the outer shape of the housing connecting portion 12, so that the shaft member B moves from one end side of the elongated hole 17 to the other end side along with the movement. , when the cover 3 reaches a predetermined opening angle, the contact portion 24 is caught by the hook portion 19 so that the cover 3 is held in the open state.

According to this configuration, since the housing connecting portion 12 and the cover connecting portion 14 for holding the cover 3 in the open state are provided outside the housing 2 and the cover 3, the housing 2, which is the instrument main body, can be It does not cause an increase in size.
Further, since the contact portion 24 is hooked on the hook portion 19 in conjunction with the opening operation of the cover 3, the operator can hook the contact portion 24 on the hook portion 19 only by opening the cover 3, and the cover 3 can be easily opened. can be held open at any time.

In the tunnel lighting fixture 1 of this embodiment, the hook portion 19 is recessed in the direction in which the shaft member B moves due to the weight of the cover 3 (that is, the front side E1), and the contact portion 24 enters the recess and is hooked.
As a result, when the cover 3 is opened, the contact portion 24 can be reliably and easily hooked on the hook portion 19 . Further, when closing the cover 3, the operator can easily release the held state and close the cover 3 simply by moving the cover 3 against its own weight.

In the tunnel lighting fixture 1 of the present embodiment, the housing connecting portion 12 and the cover connecting portion 14 are connected so that the shaft member B is rotatably supported in the long hole 17, thereby opening and closing the cover 3. It constitutes a hinge that supports the
According to this configuration, there is no need to separately provide a hinge for opening and closing the cover 3, and cost reduction can be achieved.

In the tunnel lighting fixture 1 of the present embodiment, the longitudinal direction F of the long hole 17 faces the direction extending from the front side E1 on which the emission surface 1A of the housing 2 is provided to the rear side E2. is provided with a packing 8 sandwiched between the cover 3 and the housing 2 . When the cover 3 is closed, the shaft member B is positioned inside the long hole 17 on the front side E1.
According to this configuration, when the cover 3 is closed, it moves from the back side E2 to the front side E1 of the housing 2 and closes the opening 7. As shown in FIG. As a result, the packing 8 provided in the front opening 7 can be more uniformly and firmly sandwiched between the cover 3 and the housing 2, and the waterproof performance can be improved.

In the tunnel lighting fixture 1 of the present embodiment, the long hole 17 is formed in the housing connection portion 12, the shaft member B is formed in the cover connection portion 14, and the outer shape of the housing connection portion 12 is formed. The edge 18 includes an inclined portion 18A that is inclined from the output surface 1A side of the housing 2 toward the opposite side so that the distance from the front end portion 17E1 of the long hole 17 increases.
Thereby, when the cover 3 is opened, the contact portion 24 moves along the inclined portion 18A, and the shaft member B can be moved from the front side end portion 17E1 of the long hole 17 to the rear side end portion 17E2.

In the tunnel lighting fixture 1 of this embodiment, the housing 2 is installed with the emission surface 1A facing downward in the horizontal direction D. As shown in FIG.
As a result, a downward force is constantly applied to the shaft member B of the cover connecting portion 14 by the weight of the cover 3, and a force is applied to the shaft member B to move it toward the front end portion 17E1.
Therefore, when the contact portion 24 reaches the hook portion 19, the shaft member B moves in the elongated hole 17 toward the front side end portion 17E1 due to the weight of the cover 3, and the contact portion 24 reaches the hook portion 19. will be caught automatically. As a result, when the operator only opens the cover 3, the abutting portion 24 is automatically caught by the hooking portion 19 and the cover 3 is held in the open state, and various maintenance work can be performed without holding the cover 3 by hand. be able to.

Note that the above-described embodiment is merely an example of one aspect of the present invention, and can be arbitrarily modified and applied without departing from the gist of the present invention.

For example, in the above-described embodiment, the long hole 17 may be provided in the cover connecting portion 14 and the shaft member B may be provided in the housing connecting portion 12 . Alternatively, the contact portion 24 may be provided on the housing connection portion 12 and the hook portion 19 may be provided on the cover connection portion 14 .

Unless otherwise specified, the horizontal and vertical directions, various numerical values, and shapes in the above-described embodiments include ranges (so-called equivalent ranges) that produce the same effects as those directions, numerical values, and shapes.

1 Tunnel lighting equipment (lighting equipment)
1A Output surface 2 Case 2A Outer surface 3 Cover 4 Opening/closing mechanism 7 Opening 7A1 Top edge 8 Packing 12 Case connecting part 14 Cover connecting part 16 Support part 17 Long hole 17E1 Front side end 18 Outer edge 19 Hook part 20 Rotating shaft portion 24 Contact portion B Shaft member C1 Opening direction C2 Closing direction D Horizontal direction E1 Front side E2 Back side F Longitudinal direction

Claims (6)

A lighting fixture comprising a housing having an opening on an emission surface and a cover closing the opening,
a housing connecting portion connected to the outer surface of the housing;
a cover connecting portion connected to the surface of the cover;
has
An elongated hole having a longitudinal direction is provided in one of the housing connection portion and the cover connection portion, and a shaft member that moves in the elongated hole as the cover is opened and closed is provided in the other,
Either one of the housing connection portion and the cover connection portion has a contact portion that contacts the outer shape portion of the other when the cover is opened, and the other has a hook portion on which the contact portion is caught. ,
When the cover is opened, the contact portion moves along the other outer shape portion, so that the shaft member moves from one end side of the elongated hole to the other end side along with the movement,
A lighting fixture, wherein when the cover reaches a predetermined opening angle, the contact portion is caught by the hooking portion, so that the cover is held in an open state. The hook is
The lighting apparatus according to claim 1, wherein the cover is recessed in the direction in which the shaft member moves due to the weight of the cover, and the contact portion enters and is caught in the recess. The housing connection portion and the cover connection portion are
The lighting fixture according to claim 2, wherein the shaft member is coupled to the elongated hole so as to be rotatably supported, thereby forming a hinge that supports the cover so that it can be opened and closed. The longitudinal direction of the elongated hole faces the direction extending from the front side of the casing where the emission surface is provided to the back side,
The opening is provided with a packing sandwiched between the cover and the housing,
The lighting fixture according to any one of claims 1 to 3, wherein when the cover is closed, the shaft member is positioned on the front side within the long hole. The long hole is formed in the housing connecting portion,
The shaft member is formed in the cover connecting portion,
The outer portion includes an inclined portion that is inclined from the side of the emission surface of the housing toward the opposite side so that the distance from the end of the elongated hole on the side closer to the emission surface of the housing increases. ,
5. The luminaire according to any one of claims 1 to 4, characterized in that: 6. The lighting fixture according to claim 1, wherein the housing is installed with the emission surface directed downward from the horizontal direction.

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