Mounting structure of recessed fixtures

Abstract

To provide an attachment structure of an embedded type instrument with improved workability, which is temporarily fixed when the instrument is inserted into an embedded hole and enables a user to conduct attachment work of a fixture with user's hand off the instrument.SOLUTION: An attachment structure of an embedded type instrument includes: an instrument body 11; and a fixture 12 for attaching the instrument body 11 to a ceiling in a state that the instrument body 11 is embedded in an embedded hole Ca provided at an attached part C. The fixture 12 has: a rotation member 51 which may rotate so as to engage with an upper edge part of the embedded hole Ca during attachment; and an attachment spring 52 which is embedded in the embedded hole Ca and temporarily fixes the instrument body 11 to the attached part C during the attachment.SELECTED DRAWING: Figure 3

Description

Technical Field

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[0001] The present invention relates to a mounting structure for an embedded device that is embedded in a mounting hole formed in a mounting surface such as a ceiling and mounted on the mounting surface.

Background Art

[0002] Conventionally, an embedded lighting fixture described in Patent Document 1 has been used. In Patent Document 1, an embedded fixture that mounts the fixture body to the ceiling by a rotatable fixture installed on the inner surface of the ceiling instead of bolting is known. The fixture of Patent Document 1 has a pair of mounting ends and a rotating shaft that rotatably supports the mounting ends. The mounting ends are located within the outer dimensions near the side surface of the fixture body before mounting, and after mounting, the fixture body is mounted to the ceiling by being installed on the inner surface of the ceiling.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

[0006] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0007] The mounting structure for a recessed fixture disclosed herein comprises a fixture body and a mounting device for mounting the fixture body to a ceiling in a recessed hole provided in a mounting member, wherein the mounting device includes a rotating member that can rotate to engage with the upper edge of the recessed hole during installation, and a mounting spring that is embedded in the recessed hole and temporarily fastens to the mounting member during installation. The device body is configured to be elongated, the rotating members are provided in at least two rows along the longitudinal direction, and the mounting spring is provided inward from the outermost row of the rotating members in the longitudinal direction of the device body. It is.

[0009] In the mounting structure for a recessed fixture disclosed herein, it is preferable that a plurality of fixture bodies are arranged along the longitudinal direction, and that each fixture body has a connecting portion that connects the ends of the other fixture bodies.

[0010] In the mounting structure for a recessed fixture disclosed herein, it is preferable that the fixture body has stepped portions at both ends in the short direction that are lower than the other parts.

[0011] In the mounting structure for a recessed fixture disclosed herein, it is preferable that the rotating member has a rotating shaft positioned on the upper surface of the stepped portion. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a mounting structure for a recessed fixture that improves workability by allowing the mounting work to be performed with hands free. [Brief explanation of the drawing]

[0013] [Figure 1] A front view showing a recessed fixture relating to one embodiment of the present invention. [Figure 2] A plan view showing a recessed fixture. [Figure 3]Cross-sectional view taken along line A-A showing the inside of the built-in device as well. [Figure 4] Cross-sectional view taken along line A-A showing the inside of the built-in lighting fixture during installation as well. [Figure 5] Side cross-sectional view showing the device main body as well. [Figure 6] Bottom view showing the connected built-in devices as well. [Figure 7] Front cross-sectional view showing the connected built-in devices as well. [Figure 8] Enlarged bottom view showing the connected built-in devices as well. [Figure 9] Enlarged front cross-sectional view showing the connected built-in devices as well. [Figure 10] Perspective view showing the built-in device as well. [Figure 11] Exploded perspective view showing the built-in device as well. [Figure 12] Perspective view explaining the connection of the built-in device as well. [Figure 13] Enlarged view of part B in Figure 2 showing the operation of the rotating member as well.

Embodiments for Carrying Out the Invention

[0014] The built-in device according to an embodiment of the present invention will be described using FIGS. 1 to 4. As shown in FIGS. 1 and 2, the shape of the built-in device 1 according to the embodiment of the present invention is an elongated shape with a large ratio of the length in the longitudinal direction to the length in the short side direction. As shown in FIG. 4, the built-in device 1 is installed by being embedded in the mounting portion C disposed on the ceiling or the like. The mounting portion C is provided with a mounting hole Ca. Note that the built-in device 1 of the present embodiment is a built-in wiring duct having a power receiving structure to which the lighting fixture 13 can be detachably and movably attached.

[0015] As shown in FIGS. 1 and 2, the built-in device 1 includes a device main body 11 and a fixture 12 for attaching to the mounting portion C in a state of being embedded in the mounting hole Ca.

[0016] The appliance body 11 is a long member with a substantially "convex" cross-sectional shape, and as shown in FIGS. 3 and 4, it has a space for arranging the lighting fixture 13 inside. More specifically, the cross-sectional shape of the appliance body 11 is such that the central part 21 on the upper surface protrudes upward more than the other parts, and on both outer sides of the upper surface in a cross-sectional view, step portions 22 for arranging the fixture 12 and the terminal block 14 are secured. The surface constituting the upper side of the central part 21 on the upper surface is defined as the first surface 25, the surfaces at both end portions on the upper surface of the appliance body 11 are defined as the second surfaces 26·26, and the surface extending in the vertical direction connecting the first surface 25 and the second surfaces 26 is defined as the connecting surface 27. The step portion 22 is a portion partitioned by the second surface 26 and the connecting surface 27.

[0017] The appliance body 11 is configured to be long, and the length in the longitudinal direction is configured in a plurality of types of predetermined lengths. The predetermined lengths are, for example, 900 mm for the shortest one and 1500 mm for the longest one.

[0018] The appliance body 11 has an appliance main body 31, end plate portions 32, and a frame portion 34. The appliance main body 31, the end plate portions 32, and the frame portion 34 are formed using a metal material such as aluminum having heat conductivity in consideration of heat dissipation and strength. The appliance main body 31 is formed by an extruded material. The appliance main body 31 has, as shown in FIGS. 3, 4, and 5, an outer wall portion 31a having a "convex" cross-sectional shape and a reflector portion 31b formed inside the "convex" shape of the outer wall portion.

[0019] A lower groove 31c is formed opposite to the lower outer surface of the outer wall portion 31a, into which the frame portion 34 is inserted and held. The frame portion 34 is fixed to the lower end of the fixture body 31 by engaging with the lower groove 31c. The frame portion 34 restricts the vertical movement of the embedded fixture 1 by sandwiching the mounting portion C between the rotating member 51 and the mounting spring 52, which will be described later. An elastic member 16 is arranged on the mounting surface side of the frame portion 34. The elastic member 16 is placed between the frame portion 34 and the mounting portion C, improving airtightness between the room and the mounting portion C. The frame portion 34 may be formed integrally with the fixture body 31. If the fixture body 31 and the frame portion 34 are formed separately, the frame portion 34 can be formed in any color, and the fixture body 31 can be made common. This makes it possible to realize an embedded fixture 1 with a frame portion 34 of the desired color without having to paint the fixture body 31 and the frame portion 34 separately. Furthermore, retaining portions 31d for fixing the mounting fixture 12 (specifically, the pivot support portion 51b and mounting spring 52 of the rotating member 51) are provided on both sides of the main body of the device 31.

[0020] As shown in Figures 1 and 2, the end plate portions 32 are attached to both longitudinal ends of the main body of the device 31 to close the open portions at both ends of the main body of the device 31. The end plate portions 32 are formed in a roughly convex shape, similar to the cross-section of the main body of the device 31. The end plate portion 32 has a through hole 32a at a position corresponding to the groove portion 31e of the main body of the fixture 31. The end plate portion 32 is positioned on the main body of the fixture 31 such that the groove portion 31e and the through hole 32a overlap in a side view along the longitudinal direction. The end plate portion 32 can be attached to the main body of the fixture 31 by fixing a screw 36 to the groove portion 31e through the through hole 32a. Furthermore, the main body of the appliance 31, the end plate portion 32, and the frame portion 34 are not limited to metal members or aluminum, as long as they are made of a material with thermal conductivity. In addition, while it is preferable that the main body of the appliance 31 be made of a material with thermal conductivity, it is not essential that it has thermal conductivity.

[0021] Furthermore, interchangeable connecting members 33 can be attached to both longitudinal ends of the fixture body 31, replacing the end plate portion 32. The connecting members 33 are metal fittings that serve as connecting parts for connecting the ends of the fixture body 31. By fixing the fixture body 31 with the connecting members 33, it becomes possible to construct an embedded type member 1 in which the fixture bodies 11 are arranged in series, as shown in Figures 6 and 7. The connecting members 33 in this embodiment are formed in a convex shape so as to follow the stepped portion 22 (first surface 25, second surface 26, and connecting surface 27) of the fixture body 31, and can be positioned on the upper surface side of the fixture body 31. The connecting members 33 have through holes (not shown) at positions corresponding to the insertion holes 31g at the longitudinal end of the second surface 26.

[0022] As shown in Figures 8 and 9, the ends of the main body of the device 31 are connected by inserting a screw 35 into the portion of the connecting member 33 that covers the second surface 26, and fixing it through the insertion hole 31g provided at the longitudinal end of the second surface 26.

[0023] The method for connecting multiple recessed fixtures 1 will be explained in detail. As shown in Figure 12, first, the screws 35 that fix the end plate portion 32 on the connecting side of the recessed fixtures 1A and 1B to be connected are released, and the end plate portion 32 is removed from the fixture body 31. The connecting member 33 is attached to the end of the fixture body 31 from which the end plate portion 32 on the longitudinal side opposite to the terminal block 14 has been removed, using screws 35. The commercial power supply wire (not shown) and the feed wire 59 are connected to the terminal block 14 of the recessed fixture 1A to which the connecting member 33 is attached, and the connection terminal of the feed wire 59 is positioned on the connecting member 33 side. The recessed fixture 1A is inserted into the recessed hole Ca of the mounting part C and temporarily fixed using the mounting spring 52, which will be described later. The recessed fixture 1A is attached to the mounting part C by rotating the rotating member 51 using a tool such as a screwdriver. After connecting the terminals of the feed wire 59 to the terminal block 14 of the embedded fixture 1B, the embedded fixture 1B is inserted into the embedded hole Ca so as to be adjacent to the embedded fixture 1A, and the embedded fixture 1B is temporarily fixed using the mounting spring 52. The through hole of the connecting member 33 attached to the embedded fixture 1A and the insertion hole 31g of the embedded fixture 1B are positioned to overlap, and the fixture body 31 of the embedded fixture 1B and the connecting member 33 are fastened using the screw 35. At this time, since the embedded fixture 1B is in a temporarily fixed state, the connecting member 33 and the fixture body 31 can be fastened while adjusting the positional misalignment with respect to the embedded fixture 1A. The rotating member 51 of the embedded fixture 1B is rotated to attach the embedded fixture 1B to the mounting part C. The sealing member 71 is attached to fill the gap between the adjacent fixture bodies 31, 31 of the embedded fixture 1A and the embedded fixture 1B. By attaching the sealing member 71, the airtightness between the room and the mounting part C can be improved.

[0024] By configuring it in this way, the fixture body 31, which is configured to a predetermined length, can be connected and installed, making it possible to provide a recessed fixture 1 of a desired length.

[0025] As shown in Figures 4, 6, 8, and 9, the space provided inside the fixture body 11 includes a first space S1 in which the duct rail 41 is provided, and a second space S2 in which at least a portion of the lighting fixtures 13 attached to the duct rail 41 are arranged.

[0026] The duct rail 41 is arranged parallel to the longitudinal direction of the fixture body 11 within the first space S1 of the fixture body 11. The duct rail 41 has a duct rail sealing member 42 and a feed-in 43 at its ends. The duct rail 41 electrically connects the terminal block 14 located at the stepped portion 22 to the feed-in 43 and draws power from the commercial power supply to the rail member connected to the feed-in 43. The lower part of the duct rail 41 is provided with a rail engagement portion 41a for engaging with an engagement portion (not shown) provided at the upper part of the lighting fixture 13. The other end of the duct rail 41, different from the feed-in 43, is provided with a duct rail sealing member 42. When positioning the lighting fixture 13, it is positioned so that the rail engagement portion 41a between the duct rail sealing member 42 and the feed-in 43 of the duct rail 41 engages with the engagement portion of the lighting fixture 13. This allows the lighting fixture 13 to be locked at any position on the duct rail 41.

[0027] The mounting fixture 12 includes a rotating member 51 and a mounting spring 52. As shown in Figures 3 and 4, the rotating member 51 locks the fixture body 11 to the upper edge of the embedded hole Ca when the fixture body 11 is being mounted. The mounting spring 52, while embedded in the embedded hole Ca, temporarily fastens the fixture body 11 to the mounting part C when the fixture body 11 is being mounted.

[0028] As shown in Figures 1, 2, 3, 4, 10, 11, and 12, multiple mounting fixtures 12 are provided on the second surface 26 of the fixture body 11 and on the side of the fixture main body 31. Part of the rotating member 51 is positioned on the second surface 26 provided on both sides in a cross-sectional view of the fixture body 11. That is, part of the rotating member 51 is attached to the stepped portion 22 of the fixture body 11.

[0029] Furthermore, as shown in Figures 1, 2, 10, and 11, the rotating members 51 are provided in at least two rows along the longitudinal direction of the fixture body 11. In this embodiment, the rotating members 51 are provided in three rows along the longitudinal direction and at two locations on both sides of each row along the short direction, for a total of six. The mounting springs 52 are provided inside the outermost row of rotating members 51 along the longitudinal direction of the fixture body 11. The mounting springs 52 are provided in two rows along the longitudinal direction and at two locations on both sides of each row along the short direction, for a total of four.

[0030] As shown in Figures 3, 4, 10, and 13, the rotating member 51 comprises a rotating shaft 51a positioned on the upper surface (second surface 26) of the stepped portion 22 and a support portion 51b that pivotally supports the rotating shaft 51a. A thin plate-shaped upper surface 51c is fixed to the rotating shaft 51a, and a locking portion 51d is provided extending downward from the upper surface 51c. The lower end of the locking portion 51d is provided with a bent portion 51e, configured so that the lower end surface is not sharp. The upper surface 51c is fixed to the rotating shaft 51a in a way that prevents relative rotation. Therefore, when the rotating shaft 51a is pivotally supported by the support portion 51b and rotated, the upper surface 51c, the locking portion 51d, and the bent portion 51e rotate around the axis in conjunction with the rotating shaft 51a.

[0031] The screw head 51f of the rotating shaft 51a is exposed on the irradiation surface side, and after inserting the device body 11 into the embedded hole Ca of the mounting part C, the screw head 51f is rotated with a tool, causing the upper surface 51c, locking part 51d, and bent part 51e to rotate. After rotation, the bent part 51e comes into contact with the upper surface of the mounting part C. Specifically, as shown in Figure 13, the initial position of the rotating member 51 is arranged as the initial upper surface 51c0. The locking part 51d0 of the initial upper surface 51c0 is positioned along the side surface of the main body of the device 31. This allows the device body 11 to be embedded to a predetermined position without contacting the embedded hole Ca of the mounting part C. The device can be rotated approximately 60 degrees around the rotating shaft 51a from the initial upper surface 51c0 to the position of the upper surface 51c. In this case, the locking portion 51d is restricted by the side surface of the main body of the device 31, allowing the worker to rotate the locking portion 51d to the appropriate position.

[0032] The mounting spring 52 is a fixing means for embedding and attaching the fixture body 11 into the embedded hole Ca of the mounting part C. The mounting spring 52 is a leaf spring formed by bending and curving a plate-shaped metal material such as stainless steel at multiple points in the middle. As shown in Figures 3 and 4, the mounting spring 52 is a leaf spring with a substantially V-shaped cross-section, with a contact portion 61 at the base end that abuts against the side of the fixture body 11 for fixation, and a wall-pressing portion 62 at the free end that extends to the side of the fixture body 11. In this embodiment, the contact portion 61 of the leaf spring 52 is attached to the holding portion 31d of the fixture main body 31 using a screw 57. The mounting spring 52 has a temporary fastening mechanism consisting of a locking portion 63 provided on the contact portion 61 side and a locked portion 64 provided on the wall pressing portion 62 side that engages with and disengages from the locking portion 63, and a protruding portion 65 that is bent and protrudes to the side of the device body 11 when the locked portion 64 is engaged with the locking portion 63. In this embodiment, the protruding portion 65 is bent, but is not particularly limited and may be curved.

[0033] The mounting spring 52 is attached to a holding portion 31d arranged in the longitudinal direction of the main body of the device 31, and is positioned to extend laterally from the side of the mounting spring 52. As shown in Figure 9, when the device body 11 is embedded in the embedded hole Ca, the wall pressing portion 62 presses against the upper surface of the mounting portion C, temporarily fixing the device body 11 to the mounting portion C. The wall pressing portion 62 extends from the lower end of the contact portion 61, and a hook-shaped retaining portion 66 is formed at the tip of the wall pressing portion 62. In addition, a protruding locking portion 64 is provided in the middle of the wall pressing portion 62 by punching. Note that the mounting position, number, etc., of the mounting springs 52 are not limited to those of this embodiment.

[0034] The contact portion 61 is the part that is fixed to the side of the main body of the device 31 by a screw 57 on the holding portion 31d. The upper part of the contact portion 61 is provided with a screw hole for attaching the mounting spring 52 to the holding portion 31d of the main body of the device 31 with a screw 57. The contact portion 61 also has a locking piece 61a on the surface facing the holding portion 31f. By locking the locking piece 61a to the holding portion 31f of the main body of the device 11, the contact portion 61 is locked so that it is along the side of the main body of the device 31.

[0035] Furthermore, the upper end of the contact portion 61 is provided with a locking portion 63 that can be freely engaged with a locked portion 64 of the wall pressing portion 62. By bending the wall pressing portion 62 by 90 degrees and engaging the locked portion 64 of the wall pressing portion 62 with the locking portion 63, the wall pressing portion 62 is temporarily fixed to the contact portion 61.

[0036] To attach the mounting spring 52 to the fixture body 11, first, the contact portion 61 of the mounting spring 52 is brought into contact with the outer wall portion 31a of the fixture body 31, and the locking piece 61a of the contact portion 61 is inserted into the holding portion 31f. Furthermore, the mounting spring 52 is fixed using a screw 57.

[0037] Next, we will explain how to install the recessed fixture 1 configured as described above. First, we will explain how to temporarily fasten the mounting spring 52 when installing the recessed fixture 1 using Figures 3 and 4.

[0038] To install the fixture body 11 of the recessed fixture 1 by inserting it into the recessed hole Ca of the mounting part C from below, first, the locking portion 64 of the wall pressing portion 62 is locked to the locking portion 63 of the contact portion 61. To lock the locking portion 64 to the locking portion 63, the wall pressing portion 62, which is the free end, is bent towards the fixture body 11 by pushing it upward from below against the elasticity of the wall pressing portion 62, thereby locking the locking portion 64 to the locking portion 63. At this time, the protruding portion 65 of the wall pressing portion 62 is bent in a direction that protrudes from the fixture body 11.

[0039] With the wall-pressing portion 62 fixed to the fixture body 11 in this manner, the fixture body 11 is inserted into the embedded hole Ca of the mounting portion C from the rear side. As the fixture body 11 is further inserted into the embedded hole Ca, the protruding portion 65 and the lower edge of the embedded hole Ca come into contact as described above. Furthermore, when the fixture body 11 is pressed upward from this contact state, the protruding portion 65 receives pressure from the embedded hole Ca, the locking portion 64 is pushed upward, and the locking portion 64 is released from the locking portion 63.

[0040] After the temporary fastening between the locked portion 64 and the locked portion 63 is released, as shown in Figure 4, the wall pressing portion 62 attempts to return to its original state due to its own shape-restoring force, pressing the inner surface of the embedded hole Ca outward. As a result, the device body 11 is no longer easily moved downward, and is stably temporarily fastened to the embedded hole Ca of the mounting portion C.

[0041] As described above, when inserting the fixture body 11 into the embedded hole Ca of the mounting part C, the locking part 64 and the locking part 63 should be temporarily fixed, and the mounting spring 52 should be inserted from the lower side to the upper side of the embedded hole Ca. In particular, even when multiple mounting springs 52 are provided in the longitudinal direction, as in the horizontally elongated embedded fixture 1 of this embodiment, the installation work can be easily performed. Furthermore, since the embedded fixture 1 can be temporarily fixed to the mounting part C, the worker can operate the rotating member 51 without supporting the fixture body 11 with their hands, thus simplifying the installation work. In addition, by temporarily fixing the fixture body 11 with the mounting spring 52, the fixture body 11 can be guided to approximately the center in the short direction relative to the embedded hole Ca. Therefore, it becomes less likely that the fixture body 11 will be positioned off-center relative to the embedded hole Ca, thus preventing improper installation of the rotating member 51.

[0042] Furthermore, the mounting spring 52 is positioned inward from the outermost row of rotating members 51 located in the longitudinal direction of the fixture body 11. With this configuration, in the recessed fixture 1, which has a horizontally elongated portion that is temporarily fixed, both ends can be completely fixed by the rotating members 51 instead of being temporarily fixed. Therefore, wobbling of the recessed fixture 1 after installation can be suppressed.

[0043] Next, the mounting method using the rotating member 51 when installing the recessed fixture 1 will be explained with reference to Figures 3, 4, and 13. To install the fixture body 11 of the recessed fixture 1 by inserting it into the recessed hole Ca of the mounting part C from below, first, the rotating member 51 is rotated so that the locking portion 51d of the rotating member 51 is aligned with the side surface of the fixture body 11 (position of locking portion 51d0 in Figure 13). At this time, the distance between the locking portions 51d of the rotating members 51 facing each other in the short direction of the recessed fixture 1 becomes smaller than the dimension of the recessed hole Ca in the short direction. This makes it possible to insert the fixture above the mounting part C without the locking portion 51d coming into contact with the recessed hole Ca.

[0044] With the rotating member 51 rotated toward the device body 11, the device body 11 is inserted into the embedded hole Ca of the mounting part C from the side where the terminal block 14 is located. After the device body 11 is inserted into the embedded hole Ca and the mounting spring 52 is temporarily secured, the worker inserts a tool into the screw head 51f exposed on the irradiation surface side and rotates it to rotate the rotating member 51 and move the locking part 51d toward the upper surface of the mounting part C (position of locking part 51d in Figure 13). As shown in Figure 4, the bent part 51e comes into contact with the upper surface of the mounting part C, preventing the device body 11 from moving downward and fixing it in the embedded hole Ca of the mounting part C.

[0045] As described above, when attaching the recessed fixture 1 to the recessed hole Ca of the mounting part C, the fixture body 11 is temporarily fixed to the recessed hole Ca of the mounting part C by the mounting spring 52 to restrict downward movement, and then a tool is inserted into the screw head 51f and rotated to fix the fixture body 11 to the recessed hole Ca of the mounting part C using the rotating member 51. In particular, even when multiple mounting springs 52 are provided in the longitudinal direction, as in the horizontally elongated recessed fixture 1 of this embodiment, the installation work can be easily carried out.

[0046] Note that the shape of the fixture body 11 in this embodiment is just an example and is not limited to the shape of this embodiment. For example, if the outer shape of the fixture body 11 is round or other shapes, the mounting spring 52 and rotating member 51 should be attached according to those shapes. Furthermore, although a recessed fixture was given as an example in this embodiment, it is not limited to lighting fixtures as long as it can be embedded in the ceiling or wall, etc.

[0047] According to the mounting structure of the recessed fixture 1 of this embodiment described above, the fixture body 11 and a mounting fixture 12 for mounting the fixture body 11 to the ceiling while embedded in a recessed hole Ca provided in the mounting part C are provided, and the mounting fixture 12 has a rotating member 51 that can rotate to engage with the upper edge of the recessed hole Ca when installed, and a mounting spring 52 that is embedded in the recessed hole Ca and temporarily fastens to the mounting part C when installed. As a result, the fixture body 11 can be temporarily fixed in the embedded hole Ca of the mounting part C by the mounting spring 52, restricting downward movement, and then the fixture body 11 can be fixed in the embedded hole Ca of the mounting part C using the rotating member 51. This allows the mounting work to be performed with hands free, improving work efficiency.

[0048] Furthermore, the main body of the device 11 is temporarily fixed to the embedded hole Ca of the mounting part C by the mounting spring 52 to restrict downward movement, and then a tool is inserted into the screw head 51f and rotated to fix the main body of the device 11 to the embedded hole Ca of the mounting part C using the rotating member 51. As a result, the fixture body 11 can be temporarily fixed in the embedded hole Ca of the mounting part C by the mounting spring 52, restricting downward movement, and then a tool can be inserted into the screw head 51f and rotated, fixing the fixture body 11 in the embedded hole Ca of the mounting part C using the rotating member 51. This allows the mounting work to be performed hands-free, improving work efficiency.

[0049] Furthermore, the fixture body 11 is configured to be elongated, and the rotating members 51 are provided in at least two rows along the longitudinal direction, with the mounting springs 52 being located inside the outermost row of rotating members 51 in the longitudinal direction of the fixture body 11. This allows the central part of the elongated fixture body 11 to be efficiently temporarily secured with a small number of mounting springs 52, while the ends of the fixture body 11 can be completely fixed with a large number of rotating members 51, thereby reducing rattling and other issues.

[0050] Furthermore, multiple fixture bodies 11 are arranged along the longitudinal direction, and each fixture body 11 has a connecting member 33 that connects the ends of the fixture bodies 11 to each other. As a result, multiple fixture bodies 11 are arranged along the longitudinal direction via connecting members 33. Furthermore, fixture bodies 31 configured to a predetermined length can be connected and installed, making it possible to provide a recessed fixture 1 of a desired length.

[0051] Furthermore, the main body of the device 11 has stepped portions 22 at both ends in the shorter direction, which are lower than the other parts. As a result, a portion of the rotating member 51 can be housed in the stepped portion 22, allowing the fixture body 11 to be smoothly embedded in the embedded hole Ca of the mounting portion C. Furthermore, by positioning a portion of the rotating member 51 in the stepped portion 22 of the fixture body 11, the height of the embedded fixture 1 can be reduced. [Explanation of Symbols]

[0052] 1. Recessed fixture 11. Main body of the device 12 Mounting hardware 13 Lighting fixtures 14 Terminal block 16 Sealing member 21 Top center 22 Stepped section 25 Page 1 26 Side 2 27 Connecting surface 31 Mainly equipment 32 End plate part 33 Connecting member 41 Duct Rail 51 Rotating member 52 Mounting spring

Claims

1. The main body of the device, The device body is attached to the ceiling in a state where it is embedded in a recessed hole provided in the mounting member, The mounting fixture includes a rotating member that can rotate to engage with the upper edge of the embedded hole during installation, During installation, it includes a mounting spring that is embedded in the mounting hole and temporarily fastened to the member to be mounted, The main body of the aforementioned device is constructed to be long in length. The rotating members are provided in at least two rows along the longitudinal direction, The mounting spring is positioned inward from the outermost row of the rotating members in the longitudinal direction of the device body. A mounting structure for a recessed fixture, characterized by the above.

2. Multiple units of the aforementioned device body are arranged along the longitudinal direction. The device body has connecting parts that connect each other's ends, Mounting structure for a recessed fixture according to feature 1.

3. The device body has stepped portions at both ends in the shorter direction, which are lower than the other parts. Mounting structure for a recessed fixture according to feature 1.

4. The rotating member has a rotating shaft positioned on the upper surface of the stepped portion. Mounting structure for a recessed fixture according to feature 3.

Images