JPH0684628U - lighting equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a ceiling-embedded luminaire that requires less space for mounting. [Structure] A rail body 2 is attached to an upper surface of an instrument body 10, and two locking bodies 1 are provided at both ends of the rail body 2 so as to be movable back and forth with respect to the rail body 2. The locking body 1 is a support piece 1
Both ends of the retreat spring 12 are coupled between the support pieces 1a of both locking bodies 1 respectively. The locking body 1 is biased toward each other by the spring force of the retreat spring 12, and when no external force acts on the locking body 1,
The tip of the locking body 1 is set in a position retracted from the side surface of the instrument body 10. A cam body is rotatably attached to the lower surface of the rail body 2 by a rotating shaft 4. When the cam body is rotated, the cam body resists the spring force of the retreat spring 12 and the tip of the locking body 1 is rotated. The part projects beyond the side surface of the instrument body 10. In this state, the locking body 1 is placed on the ceiling member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ceiling-embedded illuminator in which an upper portion is inserted into an opening formed in a ceiling.

[0002]

[Prior art]

 This type of ceiling-embedded lighting fixture has a fixture body 10 whose upper portion is inserted into an opening hole (not shown) opened in the ceiling 21 as shown in FIG. As shown in FIG. 6, two locking members 6 are arranged on the upper surface of the device body 10 so as to be separated from each other in the longitudinal direction, and each locking device 6 is pivotally attached to the device body 10 by a rotating shaft 4. To attach this lighting fixture to the ceiling 21, rotate the fixture body 6 to a position where both ends of the fixture 6 recede from the side surface of the fixture body 10 (positions indicated by chain double-dashed lines in FIG. 6). After inserting into the opening hole of the ceiling 21, the locking tool 6 is rotated to a position where both ends project from the side surface of the instrument body 10. In this state, both ends of the two locking tools 6 are placed on the periphery of the opening hole on the upper surface of the ceiling 10, and the lighting fixture is fixed to the ceiling 21.

[0003]

[Problems to be solved by the device]

 In the above-described lighting fixture, the locking tool 6 for attaching the tool body 10 to the ceiling 21 rotates along the ceiling 21. Therefore, in addition to the space occupied by the locking tool 6 with the tool body 10 attached, A space for rotating the locking tool 6 is required, and as a result, if various members are arranged on the upper surface side of the ceiling, the appliance body 10 may not be attached to the ceiling. was there.

The present invention has been made in view of the above problems, and an object thereof is to provide a lighting fixture that can be mounted on a ceiling even if various members are present on the upper surface side of the ceiling. is there.

[0005]

[Means for Solving the Problems] In the invention of claim 1, in order to achieve the above-mentioned object, a device main body having an upper part inserted into an opening hole formed in a ceiling and a movable body along a straight line along a ceiling surface. And a plurality of locking bodies that are movable back and forth between a first position in which the tip portion projects from the side surface of the instrument body and a second position in which the tip portion retracts from the side surface of the instrument body. An operating device for advancing and retracting the locking body is provided, and the tip end of the locking body at the first position is placed on the ceiling member at the peripheral portion of the opening hole.

In order to achieve the above-mentioned object, in the invention of claim 2, the operating device is provided with a retracting spring for urging each locking body toward the second position, and along the ceiling surface with respect to the instrument body. The locking surface is attached rotatably in the plane and presses each locking body against the spring force of the retraction spring to hold each locking body in the first position, and the locking surface is It consists of a cam body provided in part, and when the cam body is rotated to the position where the pressing of the locking body by the locking surface is released, each locking body moves to the second position by the spring force of the retraction spring. It is characterized by doing.

In order to achieve the above object, in the invention of claim 3, the operating device includes a rotating body rotatably attached to the instrument body in a plane along the ceiling surface, and a rotating body. A part other than the center of rotation is connected to each locking body so that each end can be freely rotated with respect to the rotating body and the locking body in a plane parallel to the rotating surface of the rotating body. And a link which is pivotally connected to convert the rotational movement of the rotating body into the linear movement of the locking body.

[0008]

[Action]

 According to the configuration of claim 1, in order to attach the instrument body to the ceiling, the plurality of locking bodies are retracted from the side surface of the instrument body, and in this state, the instrument body is inserted into the opening hole opened in the ceiling, After that, each locking body is linearly moved by the operating device so that it is projected from the side surface of the instrument body. At this time, the locking body can be placed on the peripheral portion of the opening hole on the upper surface of the ceiling, and the lighting fixture can be attached to the ceiling. That is, the device body can be attached to the ceiling as long as the space occupied by the body is secured when the body protrudes from the equipment body, and many members are arranged on the upper surface side of the ceiling. Even if it is installed, the fixture body can be fixed to the ceiling.

According to the configuration of claim 2, in order to linearly move the locking body to the position projecting from the instrument body, the cam body is rotated, and the locking surface of the cam body is pressed against the locking body to retreat. The locking body may be projected from the instrument body against the spring force of the spring. Also, when the cam body is rotated and the locking surface of the cam body is removed from the locking body, the spring force of the retraction spring that biases the locking body to the position retracting from the instrument body causes the cam to move to the position retracting from the instrument body. The stopper moves linearly and returns.

According to the configuration of claim 3, when the rotating body is rotated, the locking body moves linearly via the link between the position where the tip portion projects from the side surface of the instrument body and the position where the tip portion retracts. To do.

[0011]

【Example】

 (Embodiment 1) As shown in FIG. 1, the instrument body 10 is formed in a trapezoidal shape, and an outer collar 10a is formed on the lower end peripheral edge of the instrument body 10. A lamp such as a straight tube type fluorescent lamp is arranged inside the instrument body 10. On the upper surface of the instrument body 10, rail bodies 2 are provided at two locations in the longitudinal direction and spaced apart from each other in the longitudinal direction of the instrument body 10. Both ends of the rail body 2 in the longitudinal direction are fixed to the upper surface of the instrument body 10, for example. The rail body 2 has a substrate 2a that is substantially parallel to the upper surface of the instrument body 10, and is formed in a shape in which leg pieces 2b are continuously integrated downward on both side edges of the substrate 2a. Further, the substrate 2a is provided with two long holes 2c along the longitudinal direction at two positions in the longitudinal direction.

As shown in FIG. 3, two stoppers 1 that slide along the two leg pieces 2b are provided on the lower surface side of the substrate 2a. Each locking body 1 has a bottom plate 1c facing below the base plate 2a, and side pieces 1b slidably contacting both leg pieces 2b of the rail body 2 are formed on both side edges of the bottom plate 1c so as to continuously project upward. To be done. Further, the locking body 1 has a contact plate 1d protruding upward from one edge of the bottom plate 1c in the sliding direction. The upper part of the contact plate 1d projects to the upper surface side of the instrument body 10 through the elongated hole 2c, and the upper end edge of the contact plate 1d is integrally provided with the support pieces 1a so as to face each other along the upper surface of the instrument body 10. Therefore, the locking body 1 is movable within the range of the length of the long hole 2c. Both ends of a retraction spring 12, which is a tension coil spring, are connected between the ends of both support pieces 1a. The locking body 1 is urged toward each other by the spring force of the retreat spring 12, and when the external force does not act on the locking body 1, the contact plate 1d abuts on one edge of the elongated hole 2c, and The front end of the stopper 1 is set at a position retracted from the outer collar 10a. Furthermore, the lower portion of the locking body 1 projects below the lower ends of the leg pieces 2b.

Further, as shown in FIG. 2, a rectangular cam body 11 is rotatably attached to the center of the base plate 2 a of the rail body 2 via a vertical rotation shaft 4. The cam body 11 is formed to have a length such that its short side is located between the leg pieces 2b. Locking surfaces 11a are formed on the two peripheral surfaces of the cam body 11, which are the short sides. Further, on the peripheral surface of the cam body 11, a pressing surface 11b is formed by cutting one diagonal corner.

To mount the lighting fixture having the above structure on the ceiling, first, the cam body 11 is positioned at the position indicated by the chain double-dashed line in FIG. At this time, the cam body 11 is located below the lower end of the rail body 2. That is, it is sandwiched between the upper surface of the instrument body 10 and the lower end of the leg piece 2b of the rail body 2. At this position of the cam body 11, the tip of the locking body 1 is retracted from the side surface of the instrument body 10 by the spring force of the retracting spring 12. In this state, after inserting the upper part of the instrument body 10 into the opening hole provided in the ceiling, the cam body 11 is rotated, and the pressing plate 11b is pressed against the spring force of the retracting spring 12 by the pressing surface 11b. When the cam body 11 is rotated, the locking surface 11a contacts the contact plate 1d, and the locking body 1 is held in a state of protruding from the side surface of the instrument body 10. In this state, by pushing the cam body 11 toward the substrate 2a side, the cam body 11 is housed between the leg pieces 2b to prevent rotation. At this time, the bottom plate 1c is placed on the peripheral portion of the opening hole, and the lighting fixture is attached to the ceiling. Further, if the cam body 11 is rotated below the both leg pieces 2b and then the cam body 11 is rotated and the engaging surface 11a is removed from the contact plate 1d, the engaging force of the retreat spring 12 causes the engaging body 1 to move. The luminaire can be removed from the ceiling by retracting from the side of the body 10.

According to the above configuration, since the locking body 10 moves linearly along the longitudinal direction of the rail body 2, as long as the space required to hold the locking body 10 in the protruding state is secured, the illuminator is provided. Fixtures can be attached to the ceiling. As an operating device for rotating the cam body 11, for example, a structure in which the rotary shaft 4 is fixed to the cam body 11 and the rotary shaft 4 is passed through the top plate of the instrument body 10 can be adopted. With this configuration, the cam body 11 can be rotated by rotating the rotating shaft 4 protruding to the lower surface side of the instrument body 10. Further, although the coil spring is used as the retreat spring 12 in the above-mentioned embodiment, it may be a leaf spring or the like, and the rail body 2 is configured so that the locking body 1 projects from both side surfaces of the instrument body 10 in the longitudinal direction. May be attached.

Second Embodiment In this embodiment, a hook claw 11c is formed on the peripheral surface of the cam body 11 as shown in FIG. That is, a hook claw 11c is formed in the vicinity of the locking surface 11a on the circumferential surface on the long side of the cam body 11, and the leg body 2b of the rail body 2 has the cam body 11 housed between the leg pieces 2b. A hook hole 2d into which the hook claw 11c is inserted is formed.

As described above, by inserting the hooking claw 11c into the hooking hole 2d, the cam body 11 can be fixed in a state where the locking body 1 projects from the side surface of the instrument body 10. The other configuration is similar to that of the first embodiment, and therefore the description is omitted. (Embodiment 3) In this embodiment, instead of the cam body 11 of Embodiment 1, as shown in FIG. 5 (a), a rectangular rotary body 13 is axially attached to the lower surface of the substrate 2a at substantially the center thereof. Is. A first link hole 14a is formed in each of the diagonally opposite corners of the rotator 13. In addition, second link holes 14b are formed at the ends of the bottom plate 1c of each locking body 1. One end of each link 14 is pivotally attached to each first link hole 14a, and the other end of each link 14 is pivotally attached to each second link hole 14b. Further, the support piece 1a and the retreat spring 12 in the first embodiment are unnecessary.

In the above configuration, when the rotating body 13 is rotated from the position shown in FIG. 5 (a) to the position shown in FIG. 5 (b), the locking body 1 retracted to the side surface of the instrument body 10 projects. . If the locking body 1 is placed in the peripheral portion of the opening hole in this state, the lighting fixture can be attached to the ceiling. Further, when the rotating body 13 is further rotated or rotated in the opposite direction, the locking body 1 retracts with respect to the side surface of the fixture body 10, and the lighting fixture can be removed from the ceiling.

[0019]

[Effect of device]

 As described above, the invention of claim 1 is such that the upper part is inserted into the opening hole formed in the ceiling, and the instrument body is movable along a straight line along the ceiling surface and the tip portion projects from the side surface of the instrument body. A plurality of locking bodies that can be moved back and forth between a first position and a second position where the tip is retracted from the side surface of the instrument body, and an operating device that moves the locking bodies forward and backward. Since the tip of the locking body at the first position is placed on the ceiling member at the peripheral portion of the opening hole, the locking body moves from the second position to the first position when the instrument body is mounted on the ceiling. By linearly moving the device body, if the space occupied by the locking body is secured while the device body is mounted on the ceiling, the device body can be mounted on the ceiling.

According to the second aspect of the present invention, the operating device includes a retracting spring for urging each locking body toward the second position, and a retractable spring that is rotatable with respect to the instrument body in a plane along the ceiling surface. A cam body provided with a locking surface on a part of its peripheral surface for holding each locking body in the first position by pressing each locking body against the spring force of the retracting spring. When the cam body is rotated to a position where the pressing of the locking body by the locking surface is released, each locking body moves to the second position by the spring force of the retreat spring, so it is only necessary to rotate the cam body. There is an effect that the locking body can be linearly moved between the first position and the second position. Moreover, there is an effect that the locking body does not stop at the middle position of the advance / retreat range due to the spring force of the retreat spring.

According to the third aspect of the invention, as described above, the operating device is attached to the main body of the rotating body such that the rotating body is rotatably attached in a plane along the ceiling surface and other than the rotation center of the rotating body. The part is connected to each locking body, and each end is pivotally attached to the rotating body and the locking body so as to be rotatable in a plane parallel to the rotating surface of the rotating body. The link for converting the rotational movement of the body into the linear movement of the locking body allows the locking body to be linearly moved between the first position and the second position simply by rotating the rotating body. This has the effect that it is easy to move the stopper forward and backward.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a perspective view of a main part of the first embodiment.

FIG. 3 is a sectional view of a main part of the first embodiment.

FIG. 4 is a perspective view of a main part of the second embodiment.

FIG. 5A is a perspective view of a main part in a state where the locking body is retracted in the third embodiment. FIG. 9B is a perspective view of a main part in a state where the locking body is projected in the third embodiment.

FIG. 6 is a perspective view of a conventional example.

FIG. 7 is a perspective view of a construction state of a conventional example.

[Explanation of symbols]

 1 Locking Body 4 Rotating Shaft 10 Instrument Main Body 11 Cam Body 11a Locking Body 12 Retraction Spring 13 Rotating Body 14 Link

Claims (3)

[Scope of utility model registration request] 1. An instrument main body having an upper part inserted into an opening formed in a ceiling, a first position and a tip which are movable on a straight line along a ceiling surface and whose tip portion protrudes from a side surface of the instrument body. Is provided with a plurality of locking bodies that can be moved back and forth between a second position where the locking body retracts from the side surface of the instrument body, and an operating device that moves the locking bodies forward and backward, and the locking at the first position A luminaire, wherein the tip of the body is placed on the ceiling member at the periphery of the opening. 2. The operating device includes a retreat spring for urging each locking body toward the second position, and a retreat spring rotatably attached to the instrument body in a plane along the ceiling surface. And a cam body having a locking surface for pressing each locking body against the spring force to hold each locking body in the first position, the cam body having a part of its peripheral surface. The luminaire according to claim 1, wherein each locking body moves to the second position by the spring force of the retreat spring when the cam body is rotated to a position where the pressing of the stopper is released. 3. The operating device connects a rotating body, which is rotatably attached to a main body of the appliance in a plane along a ceiling surface, a portion of the rotating body other than a rotation center, and each locking body. Each of the ends is pivotally attached to the rotating body and the locking body so as to be rotatable in a plane parallel to the rotating surface of the rotating body. The luminaire according to claim 1, comprising a link that is converted into a linear movement.