JPH0520901A - Spotlight - Google Patents

Abstract

PURPOSE:To simplify the construction of a spotlight and prevent the dislocation of a socket and a reflective mirror, while the construction being so made as not to cause a temperature rise on the external surface of a case. CONSTITUTION:A socket 5 is housed in a fixture case 4 having an open front end, and a reflective mirror 7 is fitted around the boundary of the open end. A plate spring 11 to elastically clamp the socket 5 and mirror 7 is used for the mounting thereof on the fixture case 4 in non-contact state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a holding structure for a reflector of a spotlight and a socket.

[0002]

2. Description of the Related Art A conventional spotlight used as stage lighting or the like is shown in FIG. In this spotlight, an instrument body 1 is attached to an arm 2 that is vertically provided from a flange 3 attached to a ceiling or the like, and at least the instrument body 1 is rotatably attached to the arm 2 so that the illumination direction of the instrument body 1 can be changed. It is as a possible structure.

The instrument body 1 has, for example, a bottomed cylindrical instrument case 4 having an open front surface, a socket 5 mounted in the instrument case 4, a lamp 6 attached to the socket 5, and the lamp 6. Reflector 7 that reflects the light of
It consists of and. The reflecting mirror 7 is a bowl-shaped bowl having a rear end portion 7a communicating with the inside thereof, and the lamp 6 is inserted from the cylindrical rear end portion 7a. Here, the reflecting mirror 7 is composed of a dichroic mirror that transmits heat rays,
The heat rays are not projected forward.

In this spotlight, the socket 5 is attached to the instrument case 4 by screwing using the socket base 9 so that the contact area between the socket 5 and the instrument body 4 is reduced as much as possible, and the temperature of the instrument case 4 is reduced. It is prevented from rising. Further, the reflecting mirror 7 is also attached using the socket base 9 so as not to come into contact with the instrument case 4. That is, the reflecting mirror 7 is elastically held by the attachment springs 10 attached to the tips of the plurality of support columns 9a forming a part of the socket base 9. Here, the mounting spring 10 has a substantially L inner end.
The inner end portion of the mounting spring 10 is elastically fitted into a groove 7b that is bent in a letter shape and is formed on the outer periphery of the cylindrical rear end portion 7a.
The reflecting mirror 7 is elastically held.

[0005]

However, in the case of the above-mentioned spotlight, in order to prevent the temperature of the instrument case 4 from rising, the socket 5 is attached to the socket base 9 by screwing, and the reflecting mirror 7 is attached by the attaching spring 10. It is attached in an elastically held state. Therefore, there are many components. Therefore, there is a problem that the assembly becomes troublesome and the cost is high. Further, since the socket 5 and the reflecting mirror 7 are fixed by separate members, respectively, there is a problem that the socket 5 and the reflecting mirror 7 are easily displaced from each other.

The present invention has been made in view of the above points, and it is an object of the present invention to simplify the structure of a structure that does not raise the temperature of the outer shell, and further to provide a socket and a reflecting mirror. It is to provide a spotlight that does not cause the positional shift of the.

[0007]

According to the present invention of claim 1,
In order to achieve the above object, an instrument case with a front opening, a socket in which a lamp is mounted, a reflecting mirror that reflects the light of the lamp in a substantially constant direction, and an elastic member that sandwiches the socket and the reflecting mirror from both sides, respectively. An elastic holding member that is attached in a held state in a non-contact state to the instrument case and that fits in the instrument case with a small contact area is provided.

As described in claim 2, it is possible to use a leaf spring bent in a substantially U-shape as the elastic holding member, and the invention of claim 3 achieves the same object. For this purpose, a socket to which the lamp is mounted, a reflecting mirror that reflects the light of the lamp in a certain direction, a two-divided holder that holds the socket and the reflecting mirror from both sides, and a holder that covers the holder. It may be provided with a rubber cover.

[0009]

According to the first aspect of the invention, the socket and the reflecting mirror are sandwiched from both sides as described above and elastically held, and are attached in a non-contact state to the instrument case, and the contact area in the instrument case is small. By providing the elastic holding member that fits in the state, the socket and the reflecting mirror can be attached to the instrument case in a non-contact state by the elastic holding member, and the instrument case can be prevented from becoming hot. . Further, by mounting the socket and the reflecting mirror only by the elastic holding member, it is possible to reduce the number of parts and simplify the configuration, and by further mounting the socket and the reflecting mirror only by the elastic holding member,
The position of the socket and the reflector are not easily misaligned.

According to the third aspect of the present invention, a rubber cover is used instead of the instrument case, and a rubber having excellent heat insulation is used as the outer shell to prevent the outer shell from becoming hot. By mounting the socket and the reflecting mirror only with the holder, the number of parts can be reduced and the configuration can be simplified, and by mounting the socket and the reflecting mirror only with the holder, the position of the socket and the reflecting mirror can be improved. It is designed so that it is difficult to slip.

[0011]

【Example】

(Embodiment 1) FIGS. 1 and 2 show an embodiment of the present invention.
In the spotlight of this embodiment, the socket 5 and the reflecting mirror 7 are fixed to the instrument case 4 by using a substantially U-shaped leaf spring 11 shown in FIG.

A notch 11a having a substantially T-shape for holding the reflecting mirror 7 is provided at the tip of each of both side pieces of the leaf spring 11.
And a holding hole 11b for holding the peripheral surface of the cylindrical socket 5 is formed at the base end of each side piece. A screw hole 11c is formed at the center of the one side piece. The instrument case 4 has a bottomed cylindrical shape with an open front surface, and the tip end is enlarged in diameter so that the reflecting mirror 7 can be accommodated therein. The small-diameter portion of the rear end portion of the instrument case 4 is formed to have a size such that the substantially square central piece of the leaf spring 11 can be fitted therein.

Since the structure of the other components is the same as that of the conventional spotlight described above, its explanation is omitted. The assembly of the instrument main body 1 by the spotlight of this embodiment is performed as follows. First, the socket 5 is housed between the both side pieces of the leaf spring 11, and the width of the both side pieces is compressed to compress the both sides to hold the socket 5 with the both side pieces.
Push it in. At this time, the leaf spring 11 is set in a state in which the portion where the notch 11a is formed is located in the large diameter portion of the instrument case 4. FIG. 2B shows a cross-sectional view of the small-diameter portion of the instrument case 4 in the state where the leaf spring 11 is thus housed in the instrument case 4. As is apparent from FIG. 2 (b), the leaf spring 11 fits in a state of line contact with the inner surface of the instrument case 4 at the upper and lower end surface portions of both side pieces. That is, the contact area between the leaf spring 11 and the instrument case 4 is extremely small, so that the heat of the socket 5 is less likely to reach the instrument case 4.

Next, the reflecting mirror 7 is fixed by the leaf spring 11.
In this case, the cylindrical rear end portion 7a of the reflecting mirror 1 is inserted between both side pieces of the leaf spring 11. Then, the cylindrical rear end portion 7a
The reflecting mirror 7 is fixed by fitting the portion beyond the groove 7b formed in the above into the lateral groove of the notch 11a.
Here, the diameter of the large-diameter portion of the instrument case 4 is larger than the diameter of the tubular portion at the rear end of the reflecting mirror 7, so that the reflecting mirror 7 and the instrument case 4 do not contact each other, and The structure is such that heat from 7 does not easily reach the instrument case 4.

The instrument body 1 assembled in this manner is attached to the arm 1 shown in FIG. 1 by the thumbscrew 12.
That is, the thumb screw 12 is screwed into the screw hole 11c formed in the leaf spring 11 through the insertion holes 2a and 4a of the arm 2 and the instrument case 4, and the instrument body 1 is fixed to the arm 1. By fixing the instrument body 1 to the arm 2 with the thumbscrew 12, the leaf spring 11 is prevented from coming off the instrument case 4 at the same time.

In the case of this embodiment, the socket 5 and the reflecting mirror 7 can be floated and attached to the instrument case 4 by the leaf spring 11, and the contact area between the leaf spring 11 and the instrument case 4 is small, so that the socket The heat from 5 and the reflecting mirror 7 is hard to reach the instrument case 4, and the instrument case 4 can be prevented from becoming hot. Moreover, in the case of this embodiment, since the socket 5 and the reflecting mirror 7 are attached to the instrument case 4 only by the leaf spring 11, the number of parts can be made smaller than in the conventional case, and the structure can be simplified. Moreover, the socket 5 can be attached without screwing, and the assemblability is improved. Further, since the leaf spring 11 has the simple structure as described above and can be formed by press working, the cost of parts can be reduced, and the number of parts can be reduced, so that the cost can be significantly reduced. Further, since the rear end portion of the instrument case 4 has a small diameter and the leaf spring 11 is held by this rear end portion, the instrument case 4 can be downsized. Further, since the socket 5 and the reflecting mirror 7 are attached by a single member including only the leaf spring 11, the socket 5 and the reflecting mirror 7 are less likely to be misaligned, and therefore there is an advantage that the optical axis misalignment can be reduced.

(Embodiment 2) FIGS. 3 and 4 show another embodiment of the present invention. In this embodiment, the leaf spring 11 of the first embodiment is used.
Instead of the above, the holder 13 shown in FIG. 3 is used. Here, the holder 13 is divided into two parts on the left and right sides, and in a state where the holders 13 are combined with each other, the front part has a cylindrical shape and the rear part has a spherical shape. On the inner surface of each of the divided holders 13, there is formed a holding rib 13a whose inner end surface has a concave arc shape, and the socket 5 is sandwiched between the holding ribs 13a and fixed. There is. Further, the front opening 13b of the holder 13 is formed in a shape that matches the cylindrical rear end 7a of the reflecting mirror 7 in which the groove 7b is formed, and the rear end 7a of the reflecting mirror 7 is sandwiched and held. It is configured. In the case of this embodiment, the instrument case 4
Without using the rubber cover 4 ′, and with the holder 13 holding the socket 5 and the reflector 7, the cover 4 ′ is covered from the rear of the holder 13 so as to wrap the holder 13. Then, the assembly of the instrument body 1 is completed. At this time, the fitting state of the holder 13 divided by the elasticity of the cover 4'is kept, and the fixed state of the socket 5 and the reflecting mirror 7 is kept. This is done by using a thumbscrew 12 for attaching the instrument body 1 to the arm 2.

In the case of the present embodiment, the cover 4'corresponding to the instrument case 4 comes into contact with the socket 5 and the reflecting mirror 7 through the holder 13 more than in the case of the first embodiment. Since the cover 4 ′ is made of rubber and heat is not propagated well, it is possible to obtain the same effect of reducing the temperature of the outer shell as that of the first embodiment. Further, by mounting the socket 5 and the reflecting mirror 7 only by the holder 13, the number of parts can be reduced and the configuration can be simplified, and further, there is an advantage that the positional displacement between the socket 5 and the reflecting mirror 7 is hard to occur. .

[0019]

As described above, according to the first aspect of the present invention, the socket and the reflecting mirror are sandwiched from both sides and elastically held, and attached in a non-contact state to the instrument case,
Since the elastic holding member that fits in the equipment case with a small contact area is provided, the socket and the reflecting mirror can be attached to the equipment case in a non-contact state by the elastic holding member, and therefore the equipment case is heated. Can be prevented. Further, since the socket and the reflecting mirror are attached only by the elastic holding member, the number of parts can be reduced and the configuration can be simplified. Furthermore, since the socket and the reflecting mirror are attached only by the elastic holding member, the position of the socket and the reflecting mirror can be reduced. It is difficult to slip.

According to a third aspect of the present invention, a socket in which the lamp is mounted, a reflector for reflecting the light of the lamp in a certain direction,
The present invention is provided with a two-divided holder that holds the socket and the reflecting mirror in a state of being sandwiched from both sides, and a rubber cover that covers the holder, and uses a rubber cover instead of the instrument case. Since the outer shell is made of rubber with excellent heat insulation, the outer shell can be prevented from becoming hot, and the socket and the reflector can be attached only by the holder,
The number of parts can be reduced and the structure can be simplified. Further, since the socket and the reflecting mirror are attached only by the holder, there is an advantage that the displacement between the socket and the reflecting mirror is hard to occur.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 (a) is a side cross-sectional view after assembly of the same as above. (B) is a front sectional view of a main part of the above.

FIG. 3 is an exploded perspective view of another embodiment of the present invention.

FIG. 4 is a side sectional view of the same as above after assembly.

FIG. 5 is a side sectional view of a conventional example.

[Explanation of symbols]

4 instrument case 4'cover 5 socket 6 lamps 7 Reflector 11 leaf spring 13 Holder

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location F21V 19/00 C 2113-3K // F21V 29/00 A 2113-3K

Claims (3)

[Claims] 1. A state in which an instrument case having an opening on the front surface, a socket in which a lamp is mounted, a reflector for reflecting the light of the lamp in a substantially constant direction, and the socket and the reflector are sandwiched from both sides and elastically held, respectively. 2. A spotlight, comprising: an elastic holding member that is attached to the instrument case in a non-contact state and fits in the instrument case with a small contact area. 2. A leaf spring bent into a substantially U shape is used as the elastic holding member.
Spotlight as described. 3. A socket in which a lamp is mounted, a reflecting mirror that reflects the light of the lamp in a substantially constant direction, a holder that is divided into two and holds the socket and the reflecting mirror from both sides, and this holder. A spotlight, comprising: a rubber cover that covers the.