JPS6199204A - Rosette - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 〔Technical field〕 This invention relates to a rosette.

[Background technology]

As shown in FIG. 1, conventionally, a lighting fixture 1 having chains 1a at both ends for hanging from the ceiling has a substantially circular shape with locking pieces 3a on opposing side edges to which each chain la is locked. It is fixed to a plate-shaped mounting bracket 3, and the mounting bracket 3 is screwed into each screw hole 2b located at a position opposite to the periphery of the opening 2a of the wiring box 2 installed on the ceiling 10, so that it is attached to the ceiling lO. It was installed. The mounting bracket 3 includes mounting screws 4 that are screwed into each screw hole 2b of the wiring box 2.
It had a slit 8.8 which was a screw insertion hole for inserting the screw. Each slit 8 has an enlarged portion at one end 8a that allows the screw head to pass through, but the other portion has a concentric arc shape that does not allow the screw head to pass through. As shown in FIG. 2, the mounting bracket 3 had an opening 3b in its center for receiving a body 5 in which a terminal plate (not shown) was housed. The body 5 was fixed to a rosette plate 6 covering the lower surface of the mounting bracket 3 with driving rivets 5a, 5a.

As a result, the rosette plate 6 also served as an outlet. On the back surface of the rosette plate 6, ribs 6a, 6a were provided which abutted against each slit 8 of the mounting bracket 3 in an intersecting manner. A mounting screw 4 shown in FIG. 1 is inserted between the contact point with the rib 6a in each slit 8 and the other end 8b of the slit 8, and the direction of the mounting bracket 3 is changed within this insertion range. It was like that. However, in the above-mentioned lighting fixture mounting structure, the direction of the lighting fixture could only be adjusted within a narrow range, so as shown in FIG. hole 9a for insertion;
A ring-shaped mounting direction adjustment plate 9 having a diameter 9a is interposed. The mounting bracket 3 was screwed not to the box 2 but to the screw holes 9b, 9b of the mounting direction adjusting plate 9 with each slit 8 aligned therewith. Inside the body 5 covered by the rosette plate 6, in addition to the terminal board, parts such as a lock spring and a disconnection button that constitute a connecting terminal together with the terminal board are built in so as to be wrapped by the body 5 and the terminal board. has been done. However, the parts assembled into the body 5 come apart in a semi-finished state after assembly, so
There was a problem that the work of assembling parts was troublesome and could not be automated. In Figure 1, 9C is a screw, in Figure 2, 3
C is a screw hole into which the screw 7 inserted into the hole 6C drilled in the rosette plate 6 is screwed, and 6b is a hole into which the driving stud 5a inserted into the hole 5b drilled in the body 5 is driven. be.

[Purpose of the invention]

An object of the present invention is to provide a rosette in which the parts housed in the body do not come apart after being assembled, and the assembly work is suitable for automation.

[Disclosure of the invention]

In order to achieve the above object, the inventors conducted extensive studies and completed this invention.

In this invention, electric wires from the ceiling are connected, and
A terminal board is housed in the body to which a blade holder spring that accepts the plug blade from the indoor side is attached.
This body also houses a locking spring for connecting the electric wire by pinching it to the terminal plate, and this body is covered with a plate having a hole for inserting the plug blade. It is a rosette that is installed on the ceiling surface, and has a width deep inside the body so that when the terminal board is assembled into the body, both ends of the leading edge of the terminal board are pinched and the terminal board is temporarily fixed. Its gist is a rosette characterized by a narrow part formed therein. Below, this is
The embodiment will be explained in detail based on the accompanying drawings.

The rosette according to this invention, as shown in Figure 4,
Terminal board 12 to which electric wires (not shown) from the ceiling are connected
．． 12 is housed in the body 16. Each terminal board 12 has two types of blade receiving springs 13 and 14 for receiving plug blades (not shown) from the indoor side.

One blade receiving spring 13 is integrally molded with the terminal plate 12. As shown in FIG. 6, the other blade receiving spring 14 is formed by bending a single heat-resistant copper metal plate, and is composed of a contact spring piece 14a and a leaf spring piece 14b. This blade receiving spring 14 is integrally attached to the terminal plate 12, as shown in FIG. Its mounting structure is as follows. In other words, blade holder spring 14
As shown in FIG. 6, it has a hole 14C for inserting a caulking rivet, and when this hole 14c is overlapped with a hole (not shown) formed in the terminal plate 12, it is shown in FIG. It is caulked with rivet rivets 15. In this way, if the blade receiving spring 14 is formed by bending a single metal plate and is integrally fixed to the terminal plate 12, it will be extremely easy to store it in the body 16. . On the other hand, as shown in FIG.
The leaf spring l9 (7) made by S) is composed of two parts, and the hole 18a is formed in each spring 18, 19.
, 19a and a screw hole 20a formed in the terminal plate 20 are overlapped with each other, and the terminal plate 20 is screwed to the terminal plate 20 with screws 21 during construction. Compared to such a conventional blade retaining spring 17, the blade retaining spring 14 according to this embodiment is
Since it is made of one component and is integrally fixed to the terminal board 12 in advance by an automated caulking method prior to construction, workability is greatly improved. In addition, in the conventional blade receiving spring 17, the contact spring 18 is plated to improve heat resistance. However, since the blade support spring 14 according to this embodiment uses heat-resistant steel as the material 1, which has excellent conductivity and heat resistance, the plating process is no longer necessary and integration is achieved.

As shown in FIG. 4 again, the body 16 has each terminal plate 1.
2, a lock spring 22 which together constitutes a connecting terminal.
, 22 and a connection release button 23 are also accommodated. These lock springs 22, 22 and disconnection button 23 are housed so as to be wrapped in the terminal board 12 and the body 16. As shown in FIG. 7, the body 16 has a narrow portion 24 formed at the bottom of the inner surface corresponding to the position where the tip of the terminal plate 12 is housed, so that both ends of the tip edge of the terminal plate 12 are clamped. ing. Thereby, the assembled terminal board 12 is temporarily fixed. Therefore, if the terminal board 12 is pushed into the body 16, not only the lock springs 22, 22 and the disconnection button 23, which are housed in the body 16 before the terminal board 12, but also the terminal board 12 are pushed into the body 16. It will not come apart after being incorporated into the interior. Therefore, the robot assembly according to this embodiment can automate the parts assembly work. The body 16 into which the parts are assembled is mounted on the ceiling so as to be covered by a plate 25 shown in FIG. The plate 25 has holes 26, 26, and 27 for inserting two types of plug blades.
．． 27, and around one type of hole 26.26, two L-shaped ribs 26a, 2
6a is formed. Each rib 26. A serves as a guide means for a plug blade (not shown) and also serves as a means for preventing the tip of the blade receiving spring 13 from shifting laterally. FIG. 3 shows a bottom view of the rosette according to this embodiment installed on the ceiling surface 10. In the figure, 3a is a locking piece of a mounting bracket for locking a chain of a lighting fixture, and 26 and 27 are holes for inserting a plug blade.

The body constituting the rosette according to this invention is the ninth body.
As shown in the figure, a recess 28.2B for positioning the lock spring may be formed in the lock spring storage area on the inner surface.

As a result, the lock spring may come loose after being stored (assembled) (
(') The formation of the recess 28°28 is achieved by recessing the bottom of the lock spring storage area to form a groove, and providing a partition 29 between adjacent lock spring storage areas. Formation is not limited to the above structures.

In the figure, 24 is a narrow part, 30 is a hole for inserting an electric wire, and 31 is a hole for inserting a screwdriver or the like to operate the button from the outside of the body, which is provided at the storage position of a disconnection button that constitutes a connecting terminal. It is. The structure of the connecting terminal is, for example,
As shown in the model diagram of FIG. 10, a terminal plate 12, a lock spring 22 for pinching and connecting the electric wire 32 between the terminal plate 12, and a screwdriver inserted through the hole 31 are moved. It consists of a button 23 for pushing and moving the wire pressing portion 22a of the lock spring 22 in the disconnection direction. Conventional rosettes were tightening terminals that tightened the wires with set screws. Therefore, the workability was poor and the reliability of the wiring was lacking. However, if the terminal has the above-mentioned connecting terminal structure, construction work can be saved and reliable connection can be achieved.

The narrow portion of the body constituting the rosette according to the present invention may be formed at least at a position where the leading edge of the terminal plate is accommodated, but there is no particular restriction on the length of the narrow portion.

In the example, the rib formed around the hole for inserting the plug blade on the back side of the plate did not extend over the entire circumference of the hole, but consisted of two L-shaped ribs. This is because the space between the two ribs becomes a place for the force to escape.
It makes the area around the hole difficult to crack. However, there is no particular restriction on the shape of the rib, and the rib may be formed all around the hole.

In the embodiment, the blade receiving spring is integrally fixed to the terminal plate by caulking. However, it is not limited to the caulking structure.

〔Effect of the invention〕

As described above, the rosette according to the present invention has a terminal board on the body to which the electric wire from the ceiling is connected and a blade receiving spring for receiving the plug blade from the indoor side is attached. It is stored in this body,
A locking spring for connecting the electric wire by pinching it to the terminal board is also housed, and this body is provided on the ceiling surface so as to be covered by a plate having a hole for inserting the plug blade. This is a rosette with a narrow width formed deep inside the body so that when the terminal board is assembled into the body, both ends of the leading edge of the terminal board are pinched and the terminal board is temporarily fixed. Because of this feature, parts such as lock springs built into the body do not come apart after assembly, and the assembly work becomes suitable for automation.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views explaining the mounting structure of a conventional lighting fixture, Figure 3 is a bottom view of an embodiment of the rosette according to the present invention, and Figure 4 shows the rosette of Figure 3. Fig. 5 is an exploded perspective view showing the constituent body and its storage parts, Fig. 5 is a perspective view showing the conventional blade holder spring and terminal board, and Fig. 6 is an exploded perspective view showing the blade holder spring forming the rosette in Fig. 3. 7 is a partial vertical sectional view of one minute of the body of the rosette shown in FIG. 3, FIG. 8 is a perspective view of the plate constituting the rosette shown in FIG. FIG. 10 is a partial cross-sectional view showing a body constituting another embodiment of the rosette according to the present invention, and FIG. 10...Ceiling surface 12...Terminal board 13.14...
・Blade holder spring 16...Body 22...Lock spring 2
4...Narrow part 25...Plate 26.27...
- Hole for plug blade insertion 26a... Rib 28... Recess 32... Wire agent Patent attorney Takehiko Matsumoto Figure 1 Figure 2 Figure 3 Figure 4 Figure 7 Figure 8

Claims (4)

[Claims] (1) A terminal board is housed in the body, to which electric wires from the ceiling are connected and a blade holder spring for receiving the plug blade from the indoor side is attached. A locking spring for connecting the electric wire by sandwiching it between the body and the plate is also housed, and this body is installed on the ceiling so that it is covered with a plate having a hole for inserting the plug blade. It is a rounded rosette, and a narrow part is formed deep inside the body so that when the terminal board is assembled into the body, both ends of the leading edge of the terminal board are pinched and the terminal board is temporarily fixed. A rosette characterized by: (2) The rosette according to claim 1, wherein the hole for inserting the plug blade has a rib formed around the back side of the plate. (3) The rosette according to claim 1 or 2, wherein the blade receiving spring is formed by bending a single plate and is integrally fixed to the terminal plate. (4) The rosette according to any one of claims 1 to 3, wherein a recess for positioning the lock spring is formed in the lock spring storage location on the inner surface of the body.