JP2937790B2 - Ceiling light mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling light mounting device for directly mounting a ceiling light (incandescent light or fluorescent light) on a ceiling at a house entrance or a washroom.

[0002]

2. Description of the Related Art FIG. 9 shows a conventional so-called hanging type ceiling light mounting device.

[0003] This device comprises a ceiling body 1 which is directly attached to a ceiling surface A in a state where it is connected to a power source in advance, a ceiling socket 2 into which an illumination lamp B such as an incandescent lamp is screwed, and
A fastening ring 4 screwed into the outer thread 3 of the sealing socket 2.

[0004] The sealing body 1 is provided with a pair of mounting grooves 5 and 5 on both sides on the lower surface, and the sealing socket 2 is provided with a pair of hooking claws 7 and 7 on both sides of the upper surface of the base 6. Are inserted into the mounting grooves 5 and 5 and rotated by a predetermined angle, whereby the sealing socket 2 is connected to the sealing body 1 and at the same time is electrically connected.

In this state, the upper end 8a of the globe 8 covering the lamp B is brought into contact with the base 6 of the sealing socket 2, and the tightening ring 4 is screwed from below, so that the upper end 8a of the globe is connected to the socket base 6. And this tightening ring 4 so as to be fixed.

In such a hanging sealing type device, a hand is put into the glove 8 and the tightening ring 4 is inserted.
, It is necessary to open the glove lower surface side (use an open glove).

[0007] Therefore, with the structure as it is, it is not possible to use a closed glove whose lower surface side is closed, and there has been a problem that the use is restricted in this respect.

Therefore, as a means for using the closed type glove by hooking and sealing, as shown in FIG. 10, a ring-shaped adapter 9 having a female screw 9a is sandwiched between the socket base 6 and the tightening ring 4. It is conceivable to adopt a configuration in which the upper male screw 10a of the closed glove 10 is screwed into the adapter 9.

In this case, it is necessary to prevent the adapter 9 from rotating with respect to the sealing socket 2 in order to prevent the adapter 9 from rotating together when the globe 10 is screwed.

[0010]

However, if this configuration is adopted, too much screwing force is applied at the screwing end because the glove 10 is screwed sufficiently so as not to rattle in the attached state. This screwing force is applied to the adapter 9
Through the hooks 7 and 7 to the sealing socket 2 and the sealing body 1 to be damaged.

Therefore, the present invention protects the main body side (sealing socket and sealing body) even if an excessive glove screwing force is applied while using a closed sealing type glove and a sealed glove, thereby preventing breakage of the glove. And a ceiling light mounting device.

[0012]

According to a first aspect of the present invention, there is provided a sealing body directly attached to a ceiling surface, a sealing socket detachably connected to the ceiling body and electrically connected thereto, and a sealing socket. A fastening member attached to the outer circumference of the sealing socket, a ring-shaped adapter which is inserted and mounted between the base of the sealing socket and the fastening member in a state of being fitted on the outer circumference of the sealing socket, and an upper end portion of the adapter. A glove that is screwed in and attached, and at one of the mating portions of the sealing socket and the adapter, one of the elastic contacts is provided with a spring force directed toward the other side, and the other is the elastic contact. Each clutch surface that elastically contacts and gives a certain resistance to the rotational force of the adapter in the globe screwing direction One in which vignetting composed.

According to a second aspect of the present invention, there is provided a sealing body which is directly attached to a ceiling surface, a sealing socket which is detachably connected to and electrically connected to the ceiling body, and a fastening which is attached to an outer periphery of the sealing socket. Attachment member, a ring-shaped adapter which is inserted between the base of the sealing socket and the tightening member while being fitted on the outer periphery of the sealing socket, and a glove whose upper end is screwed and attached to the adapter An inner peripheral member fitted externally in a state where the adapter is prevented from rotating with respect to the sealing socket,
An outer peripheral member which is externally fitted to the inner peripheral member and into which the upper end of the glove is screwed, and in which the inner peripheral member and the outer peripheral member are fitted to each other, one of them is directed toward the other. An elastic contact provided with a spring force, and a clutch surface for providing a certain resistance to the rotational force of the outer peripheral side member in the glove screwing direction by elastically contacting the elastic contact with the other are provided respectively. Things.

According to a third aspect of the present invention, in the configuration of the first or second aspect, the clutch surface is formed in a polygonal shape.

According to a fourth aspect of the present invention, in the configuration of the first or second aspect, the clutch surface is formed on a concave-convex surface having convex portions at intervals in a circumferential direction.

According to a fifth aspect of the present invention, in the configuration of the first to fourth aspects, the elastic contact exerts a greater resistance to the rotational force in the glove screwing direction than to the rotational force in the glove screwing direction. It is configured as a ratchet claw.

[0017]

According to the first aspect of the present invention, the adapter is prevented from rotating with respect to the sealing socket by the rotational resistance as long as the globe screwing force does not exceed the rotational resistance between the elastic contact and the clutch surface.

On the other hand, if the globe screwing force exceeds the above-mentioned rotational resistance, the elastic contact slips against the clutch surface, and the adapter idles with respect to the sealing socket.

Therefore, by setting the rotational resistance between the elastic contact and the clutch surface to a value larger than the normal glove screwing force and smaller than the glove screwing force large enough to cause damage to the main body side, The glove can be screwed to the end while preventing co-rotation, and the body side can be protected by the idle rotation of the adapter against excessive screwing force thereafter.

That is, a hook-sealing type
In addition, it is possible to prevent the main body from being damaged due to excessive screwing of the glove while using the closed glove.

On the other hand, according to the structure of the second aspect, the adapter is divided into an inner peripheral side member which is prevented from rotating with respect to the sealing socket and an outer peripheral side member which is externally fitted to the inner peripheral side member. The above detent / slip action is performed.

In this case, the switching between the detent action and the slip action is performed by the polygonal clutch surface in the configuration of the third aspect, and by the uneven clutch surface in the configuration of the fourth aspect.

According to the third aspect of the present invention, since the rotational resistance is gradually increased by the polygonal clutch surface, and the slip action is exerted at the peak, the switching can be performed smoothly without shock. On the other hand, according to the configuration of the fourth aspect, since the rotational resistance is rapidly increased at the convex portion and the slip action is performed, the screwed end of the glove can be clearly recognized in response, and unnecessary slip rotation can be reduced. .

According to the fifth aspect of the present invention, since the elastic contact is formed as a ratchet pawl, a one-way clutch operation is performed, and the adapter for removing the glove for replacing the illumination lamp or the like (the first aspect). Case) or the co-rotation of the adapter outer peripheral side member (case of claim 2) can be reliably prevented. For this reason, it is not necessary to perform a co-rotation prevention operation, such as manually restraining them.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

In the following embodiment, FIGS.
The same parts as those of the conventional device shown in FIG.
The duplicate description is omitted.

First Embodiment (See FIGS. 1 to 6) In FIGS. 1 and 2, reference numeral 11 denotes a sealing socket, and 12 denotes a fastening member.

The sealing socket 11 comprises a substantially circular base 13 and a cylindrical body 14, and has a pair of hooking claws 15, 15 inserted and locked into mounting grooves (not shown) of the sealing body 1. 13 protrudes upward.

The base 13 and the body 14 are formed as separate members for convenience of terminal assembly and the like, and are connected by screws 16.

As shown in FIGS. 1 to 3, the fastening member 12 is a short cylindrical upper ring 17 having a flange 17a at the upper end.
A short cylindrical lower ring 18 having a diameter larger than that of the upper ring 17 is slidably fitted in the axial direction with a compression coil spring (hereinafter simply referred to as a spring) 19 interposed therebetween. Has been made.

The coupling structure between the upper ring 17 and the lower ring 18 will be described. As shown in FIG. 3, a pair of coupling grooves 20 are formed on the outer peripheral surface of the upper ring 17 and a pair of convex portions 21 are formed on the inner peripheral surface of the upper end of the lower ring 18. They are provided in a symmetric arrangement.

The connecting groove 20 has a downwardly opening entrance / exit groove 20a and a main coupling groove 2 extending from the entrance / exit groove 20a in a circumferential direction at a predetermined angle (for example, 60 °).
0b.

The entrance / exit groove 20a and the main connecting groove 20b
Are formed with an axial dimension in which the convex portion 21 can move in a predetermined range in the axial direction, and the convex portion 21 is formed in the entrance groove 2.
The two rings 17 and 18 are fitted and connected relatively slidably in a certain range in the axial direction by engaging with the main connecting groove 20b via the first connecting groove 20a.

In the connecting groove 20, a stopper 20c for preventing inversion is provided so as to enter the base end side of the main connecting groove 20b, and by this stopper 20c, the protrusion 21 is inverted to the entrance groove 20a side. That is, both rings 17,1
8 is prevented.

Further, as shown in FIG. 1, the connecting groove 20 is provided so that the convex portion 21 does not invert beyond the stopper 20c.
The upper end of the upper ring 17 (flange 17a)
A C-shaped retaining ring 22 is attached to the base portion of the ring.

On the other hand, the mounting structure of the fastening member 12 to the sealing socket 11 is similar to the connection structure of the two rings 17 and 18 of the fastening member 12 described above.

That is, as shown in FIG. 2 and FIG.
A pair of engagement grooves 23 are provided in a symmetric arrangement.

Like the connecting groove 20 in the fastening member 12, the engaging grooves 23, 23 are formed with an entrance groove 23a opened downward and a predetermined angle (for example, from the upper end side of the entrance groove 23a) in the circumferential direction. 60 [deg.]) And a main engagement groove 23b extending over the range.

A stopper 23c for preventing reversal is provided on the base end side of the main engagement groove 23b so as to enter the groove 23b from below.

On the other hand, the lower ring 1
8, a pair of protrusions 24, 24 are provided in a symmetrical arrangement on the inner peripheral surface of the lower end portion, and the protrusions 24, 24 are fitted into the main engaging groove 23b via the inlet / outlet groove 23a, whereby the fastening member 12 is connected to the sealing socket. 2 attached.

The fastening member 12 and the sealing socket 2
The ring-shaped adapter 25 is sandwiched and fixed between
A sealed glove 26 is attached to the adapter 25.

The adapter 25 has a female threaded tube portion 2 on the outer peripheral side into which the upper male screw portion 26a of the globe 26 is screwed.
7, each having a short cylindrical fitting cylindrical portion 28 on the inner peripheral side,
The fitting tube portion 28 is fitted to the upper end of the body portion 14 of the sealing socket 11.

The outer peripheral surface 29 of the upper end of the body 14 is
Is formed in a regular octagon as shown in FIG.
29) and the fitting cylinder 2 of the adapter 25
8, a plurality of elastic contacts 30 composed of leaf springs provided at regular intervals in the circumferential direction perform a detent / slip action.

That is, the resilient contacts 30 are formed in a substantially V-shape, are attached to the fitting tube portion 28 with one end fixed and the other end free, and the contact portion 30a, which is the top of the V-shape, is engaged with the clutch surface 29. Contact

As shown in FIG. 6, the distance d from the socket center O of the clutch surface 29 becomes minimum at the center point of each side, and gradually increases from here toward the corner.

Therefore, when a rotational force in the glove screwing direction (the direction of the arrow in FIGS. 5 and 6) acts on the adapter 25 when the glove 26 is screwed in, the contact portion 30a of the elastic contacts 30. The frictional resistance (adapter rotation resistance) acting therebetween gradually increases toward the corners of the clutch surface, and the elastic contacts 30 elastically deform in the opening direction while maintaining the contact state with the clutch surface 29 as shown in FIG. I do.

Accordingly, the rotational resistance of the adapter at the corner of the clutch surface is larger than the co-rotating force acting on the adapter 25 until the glove 26 is screwed to the end when the glove is screwed. Is smaller than the co-rotating force acting on the adapter 25 after reaching the threaded end.
By setting the spring force or the like of the elastic contacts 30...
Until the glove 26 is screwed up to the screwing end, the resilient contacts 30... Climb over the clutch face corners until the adapter 25 is screwed to the screwing end of the female threaded cylindrical portion 27. It turns idle.

The glove 26 can be reliably screwed into the adapter 25 to the end by the rotation preventing and slipping action, and the slipping action is applied to the rotational force exceeding the normal screwing force, so that the glove 26 is sealed on the main body side (sealing). The damage of the socket 11 and the sealing body 1) can be prevented.

In addition, according to this configuration, the rotational resistance is gradually increased by the polygonal clutch surface 29, and a slip action is exerted at the peak, so that this switching can be performed smoothly without shock.

On the other hand, the elastic contacts 30 are provided with one side of the V-shape in the fitting cylinder 28 so as not to be elastically deformed by the rotation of the adapter 25 in the direction opposite to the direction of the arrows in FIGS. The convex wall 28a (shown in FIG. 5) is constrained.

As a result, against the co-rotating force acting on the adapter 25 when the glove 26 is removed, the elastic contacts 30 perform a ratchet action (rotation preventing action), so that the adapter 25 is restrained by hand. The glove 26 can be easily removed without a troublesome operation such as keeping the glove 26 in place.

Second Embodiment (See FIGS. 7 and 8) Only the differences from the first embodiment will be described. In the second embodiment, the adapter 31 is provided with the outer peripheral surface 29 of the upper end of the body 14 of the sealing socket 11. Inner side member 3 externally fitted to
2 and an outer peripheral member 33 externally fitted to the inner peripheral member 32.
And is constituted by.

The inner peripheral surface 32a of the inner peripheral member 32 is
4 is formed in a regular octagon corresponding to the outer peripheral surface 29 of the upper end,
The inner peripheral member 32 is prevented from rotating with respect to the sealing socket 11 by the fitting of the two surfaces 32a and 29.

A plurality of projections 34a are provided on the outer peripheral surface (hereinafter referred to as a clutch surface) 34 of the inner peripheral member 32 at intervals in the circumferential direction.

On the other hand, a plurality of elastic contacts 30 are provided on the outer peripheral side member 33, and the contact portions 30 of the elastic contacts 30 are provided.
a elastically comes into contact with the clutch surface 33, and a detent / slip action is performed between them.

That is, from the center of the socket to the clutch surface 3
The rotation to work between the inner and outer members 32, 33 when the contact portions 35a of the resilient contacts 30 reach the convex portions 34, the distance up to 4 increases rapidly at the convex portions 34. Resistance soars.

Therefore, this rotational resistance is larger than (A) the co-rotating force acting on the outer peripheral side member 33 until the globe 26 is screwed to the end, and (B) the outer peripheral side after the globe 26 reaches the screwed end. By setting the spring force or the like of the elastic contacts 30 so as to be smaller than the co-rotating force acting on the member 33, the co-rotation of the outer peripheral side member 333 is prevented until the globe 26 is screwed to the end. After the globe 26 is screwed to the end, the outer peripheral members 33 idle while the elastic contacts 30... Ride over the clutch surface protrusions 34a.

Thus, similarly to the first embodiment, the glove 26 can be securely screwed into the adapter 31 (outer peripheral member 33) up to the screwing end, and a rotational force exceeding this normal screwing force can be applied. Can prevent the main body (the sealing socket 11 and the sealing body 1) from being damaged by the slip action.

Further, according to the second embodiment, unlike the first embodiment, since the rotational resistance is rapidly increased by the convex portion 34 and the slip action works, the screwed end of the globe 26 is clearly recognized in response. And the useless slip rotation can be reduced.

Other Embodiments (1) As a modification of the first embodiment, elastic contacts 30... May be provided on the sealing socket 11 side, and a clutch surface 29 may be provided on the adapter 25 side. Similarly, as a modification of the second embodiment, the inner peripheral member 32 of the adapter 31 may be provided with the elastic contacts 30... And the outer peripheral member 33 may be provided with the clutch surface 34.

(2) In the above embodiment, the fastening member 12 is
An upper ring 17 and a lower ring 18 are
The fastening ring 4 is screwed into the sealing socket 2 used in the conventional device shown in FIGS. 9 and 10 as a fastening member.
May be used.

[0062]

As described above, according to the present invention, between the adapter and the sealing socket (claim 1), or between the inner peripheral member and the outer peripheral member constituting the adapter,
The elastic contact and the clutch surface provide a constant resistance to the rotational force of the adapter in the glove screwing direction. This rotational resistance is larger than the normal glove screwing force, and the main body is damaged. By setting the glove screwing force to a value smaller than the globe screwing force, the glove can be screwed to the end while preventing co-rotation of the adapter or the outer peripheral side member. In this case, the main body side can be protected by idling of the adapter or the outer peripheral member.

That is, a hook-sealing type,
In addition, it is possible to prevent the main body from being damaged due to excessive screwing of the glove while using the closed glove.

According to the fifth aspect of the present invention, the elastic contact is formed in the form of a ratchet claw, so that a one-way clutch function is effected, and an adapter for removing the glove for replacement of an illumination lamp or the like is provided. Case) or the outer peripheral side member of the adapter (case of claim 2) can be prevented from rotating together.

In other words, there is no need to perform an operation of restraining them by hand to prevent co-rotation, and the glove can be easily removed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a mounting device for a ceiling light according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a sealing socket and a fastening member in the apparatus of the embodiment.

FIG. 3 is an exploded perspective view of a fastening member in the same device.

FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 1;

FIG. 6 is a partially enlarged view of FIG. 5;

FIG. 7 is a sectional view of an apparatus according to a second embodiment of the present invention.

8 is an enlarged sectional view taken along line VIII-VIII in FIG. 7;

FIG. 9 is a sectional view showing a conventional device.

FIG. 10 is a cross-sectional view showing a configuration when a closed glove is used in a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sealing body 11 Sealing socket 12 Fastening member 17 Upper ring 18 which constitutes a fastening member 18 Lower ring 19 Same spring 25 Adapter 26 Globe 29 Clutch surface 30 ... Elastic contact 31 Adapter 32 Inner peripheral member which comprises adapter 33 Same outer peripheral side member 34 Clutch surface 34a Convex portion of clutch surface

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F21V 17/06 F21V 17/00 330 F21S 1/02

Claims (5)

(57) [Claims] 1. A sealing body which is directly attached to a ceiling surface, a sealing socket which is detachably connected to and electrically connected to the ceiling body, a fastening member attached to an outer periphery of the sealing socket, and a sealing member. A ring-shaped adapter which is inserted and attached between the base of the sealing socket and the tightening member while being fitted on the outer periphery of the socket, and a glove which is attached by screwing an upper end portion of the adapter into the adapter. In the part where the sealing socket and the adapter are mated,
Either one of the elastic contacts is provided with a spring force directed to the other side, and the other elastic contact comes into contact with the elastic contact to provide a constant resistance to the rotational force of the adapter in the globe screwing direction. A mounting device for a ceiling light, wherein each of the surfaces is provided. 2. A sealing body which is directly attached to a ceiling surface, a sealing socket which is detachably connected to and electrically connected to the ceiling body, a fastening member attached to an outer periphery of the sealing socket, and a sealing member. A ring-shaped adapter which is inserted and attached between the base of the sealing socket and the tightening member while being fitted on the outer periphery of the socket, and a glove which is attached by screwing an upper end portion of the adapter into the adapter. The adapter comprises an inner peripheral member externally fitted in a state of being prevented from rotating with respect to the sealing socket, and an outer peripheral member externally fitted to the inner peripheral member and into which the upper end of the glove is screwed, An elastic contact provided with a spring force directed to the other side at one of the mating portions of the inner and outer peripheral members. A ceiling light provided on each of the contactor and the clutch contact surface, the clutch contact surface being elastically contacted by the elastic contact and providing a constant resistance to the rotational force of the outer peripheral member in the globe screwing direction; Mounting device. 3. The mounting device for a ceiling light according to claim 1, wherein the clutch surface is formed in a polygonal shape. 4. The mounting device for a ceiling light according to claim 1, wherein the clutch surface is formed as a concave-convex surface having a convex portion at intervals in a circumferential direction. 5. The resilient contact is configured as a ratchet pawl that exerts greater resistance to rotational force in the glove screwing direction than to rotational force in the glove screwing direction. The mounting device for a ceiling light according to any one of claims 1 to 4.