JPH0760614B2 - Revolving light - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a rotating lamp that is installed on a roof of an emergency vehicle such as a patrol car or an ambulance, and that irradiates light with flash light when an emergency situation occurs, In particular, the present invention relates to improvement of a light source mounting structure.

[Prior Art] This type of revolving light installed on the roof of a patrol car, etc. has a white light source such as a halogen bulb and a reflector inside a globe colored red or yellow. The light emitted from the light source is emitted in a flash shape by rotating the light source around the light source when the light is generated. The glove shape is cup-shaped (cylindrical), and is installed on the roof of the vehicle body with the central axis being vertical. As a light source, a so-called shielded beam type light bulb unit (hereinafter simply referred to as a light bulb unit) in which a filament is enclosed in a lamp body in recent years is widely used in place of a general bulb in order to obtain desired light distribution and brightness. It has come to be used. Since such a light bulb unit is larger than a general bulb, it is arranged above the reflector as shown in FIG. 8 in consideration of workability at the time of mounting and replacement. That is, 1 is a shield beam type light bulb unit arranged in a globe (not shown), and 2 is a mountain-shaped reflector which is rotatably arranged below the light bulb unit 1 and is rotated by a drive motor (not shown). Reference numeral 3 denotes a mounting plate that holds the light bulb unit 1, and the mounting plate 3 is formed into a disc shape by press working or the like, and has a light source mounting hole 4 at the center into which the light bulb unit 1 is fitted. It is fixed on the column 5 by a bolt 6 or the like. Reference numeral 7 is a linear spring that press-fixes the light bulb unit to the mounting plate 3, and is bent into a substantially U-shape to form the light bulb unit 1.
A pair of pressing pieces 7A, 7B for pressing the back surface of the and pressing pieces 7A, 7B
And a connecting piece 7C that connects one end of the. Connecting piece
7C is rotatably held by a cylindrical holding portion 8 integrally provided on the mounting plate 3, and the pressing piece 7C is provided.
Free ends of A and 7B are respectively locked by hook-shaped (reverse L-shaped) locking pieces 9 provided on the mounting plate 3.

[Problems to be Solved by the Invention] However, in such a conventional structure for mounting the light bulb unit 1 in the rotating lamp, since the back surface of the light bulb unit 1 is formed in a spherical shape that is convex rearward. It becomes suitable to press the light bulb unit 1 at two points only at one central portion 10 of each pressing piece 7A, 7B of the spring 7, and therefore the spring 7 does not sufficiently press the light bulb unit 1 and rattles due to vibration or the like. There was a problem that it was easy.

In addition, as a positioning structure for the light bulb unit 1, a notch recess 11 is formed on the inner peripheral surface of the light source mounting hole 4 of the mounting plate 3.
The light source mounting hole 4 is provided with a positioning projection 12 projecting from the peripheral surface of the light bulb unit 1.
The gap between the light bulb unit 1 and the light bulb unit 1 is large and easily disengaged, and it cannot be said that it is very effective.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to be able to stably and reliably fix the light bulb unit with a relatively simple structure and to improve durability. The purpose is to provide a revolving light.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention detachably fits and fixes a light bulb unit in a light source mounting hole of a mounting plate provided in a globe, and emits light from the light bulb unit. In a rotating lamp that is reflected by a reflecting plate that is rotationally driven by a drive motor, a set plate having a central hole into which the light bulb unit is inserted and a plurality of elastic pressing pieces integrally provided at a peripheral portion of the central hole is provided. It is fixed to a mounting plate, and the light bulb unit is elastically pressed and fixed to the mounting plate by the elastic pressing piece.

Further, according to the present invention, the set plate is provided with a positioning recess for positioning the light bulb unit.

[Operation] In the present invention, the elastic pressing piece of the set plate elastically presses the light bulb unit to fix the mounting plate. Further, the set plate positions the light bulb unit by engaging the positioning recess and the positioning projection.

[Examples] Hereinafter, the present invention will be described in detail based on Examples shown in the drawings.

FIG. 1 is a vertical sectional view showing an embodiment of a rotary lamp according to the present invention, and FIG. 2 is a plan view showing a mounting state of a light bulb unit,
FIG. 3 is a view taken in the direction of arrow A in FIG. 2, FIG. 4 is a plan view of a revolving light,
FIG. 5 is a sectional view taken along line VV of FIG. 2, and FIG. 6 is B of FIG.
FIG. 7 is an enlarged cross-sectional view of a portion, and FIG. 7 is a view on arrow C in FIG. In these figures, the revolving light 20 is the roof 22 of the vehicle body.
It has a cylindrical body 23 installed on top. body
A cup-shaped base plate 25 is fitted to the inner peripheral surface of the lower end side opening 24 of the body 23 and fixed by a plurality of screws 26, whereby the lower end opening 24 of the body 23 is covered. An anti-vibration member 27 such as rubber is attached to the lower surface of the base plate 25 by bolts 28 and nuts 29. These anti-vibration members 27 are attached to the roof 22 by bolts 3.
It is fixed by 0, a nut 31, a plain washer 32, and a spring washer 33. Plates 34 are provided on the upper and lower surfaces of the vibration isolating member 17, respectively. The heads of the bolts 28 and 30 are embedded in the vibration isolating member 27, and the male screw portion projects outward from the plate 34. Then, the base plate 25
An end rubber 35 having a U-shaped cross section is fitted to the lower end of the peripheral wall portion 25A.

A glove 36 is installed on the upper surface of the body 23 via a gasket 37, and is detachably fixed by a plurality of locking devices 38. The globe 36 is formed of translucent plastic, glass or the like into a cylindrical shape having an open lower end, and is colored red or yellow. The gasket 37 has a substantially J-shaped cross section and is fitted to the lower end of the globe 36 and fixed by a retaining ring 39.
The retaining ring 39 is fitted and fixed to the outer peripheral surface of the lower end portion of the globe 36, and the lower end portion thereof is loosely fitted to the outer peripheral surface of the upper end portion of the body 23. The locking device 38 includes a patch key 38A fixed to the outer peripheral surface of the body 23 and a clip fixed to the outer peripheral surface of the retaining ring 39.
38B, and the arm 40 of the patch key 38A is hooked on the clip 38B.

On the upper surface of the body 23, a plurality of columns, for example, three columns
42 is erected, and the light bulb unit 41 is installed on the upper end thereof via a mounting plate 47 and a set plate 48, and this is protected from the outside by the globe 36.

The light bulb unit 41 includes a lamp body 42 whose inner surface forms a paraboloidal reflective surface, and a convex lens 43 that covers the front opening of the lamp body 42.
And a bulb (not shown) such as a halogen bulb enclosed in the lamp body 42, a gasket 44 fitted on the outer peripheral surface of the large diameter portion 42a of the lamp body 42, and attached to the rear top portion of the lamp body 42. It is composed of a terminal piece 45 and the like, and is attached to the mounting plate 47 from above with the lens 43 facing downward.

The mounting plate 47 is formed into a cylindrical shape by press working as shown in FIGS.
A cylindrical portion 47A, an outer collar 47B formed by bending the upper end of the cylindrical portion 47A outward, and an inner collar 47C formed by bending the lower end of the cylindrical portion 47A inward are integrally provided. The cylindrical portion 4
7A has a light source mounting hole 47D formed by fitting the light bulb unit 41 from above. The lower surface of the large diameter portion 42a is received and held by the inner collar 47C. The outer collar 47B is fixed to the upper ends of the columns 42 via a pair of nuts 50. Therefore, a male screw portion 51 is formed on the outer peripheral surface of the upper end portion of the column 42, and a male screw portion 52 is also formed on the outer peripheral surface of the lower end portion.
The lower end male screw portion 52 is fixed to the upper surface plate 53 of the body 23 by a pair of nuts 54. The inner flange 47C receives and holds the large diameter portion 42a of the light bulb unit 41.

The set plate 48 is formed into a disk shape by press working or the like, and a reinforcing wall 56 having an appropriate height is integrally provided on the outer peripheral edge of the set plate 48 so as to project upward over the entire circumference and has a substantially inverted L shape. The fixing portion 57 is integrally provided. An upper end portion of the fixing portion 57 is bent outward substantially horizontally and fixed on the outer collar 47B of the mounting plate 47 with a screw 58. A reinforcing bead 60 is provided on the outer surface of the bent portion of the fixed portion 57 so as to project. On the outer periphery of the set plate 48, on the side opposite to the fixed portion 57, an engaging projection piece 61 (FIG. 5) is integrally provided so as to project outward, and the engaging projection piece 61 is mounted on the mounting plate. It is inserted and engaged from the inside into an engagement hole 63 formed in the cylindrical portion 47A of the plate 47. On the other hand, the inner circumference of the set plate 48, that is, the central hole into which the lamp body 42 is inserted.
Four elastic pressing pieces 66 for elastically pressing the light bulb unit 41 from above are integrally provided on the peripheral edge of the terminal 64 so as to be equally arranged in the circumferential direction. As shown in FIGS. 2 and 3, the elastic pressing piece 66 extends long in the inner circumferential direction of the set plate 48, and has a tip portion formed in a tongue shape bent downward in a substantially inverted trapezoidal shape. As shown in FIG. 5, the large diameter portion 42a of the light bulb unit 41 is pressed from above to push the mounting plate 4
It is fixed to the inner flange 47C of 7. In addition, a positioning recess 67 is provided on the inner periphery of the set plate 48 on the side opposite to the fixing piece 57, and a positioning projection provided on the outer periphery of the rear surface of the lamp body 42 is provided in the recess 67. 68 is fitted to position the bulb unit 41 and prevent it from rotating in a horizontal plane.

Inside the body 23, the chassis 70
Are fixed by a set screw 72 via a plurality of bushings 71. A shaft 73 is erected at the center of the upper surface of the chassis 70 via a bolt 74 and a nut 75, and an upper end portion of the shaft 73 projects above the body 23 from an opening 76 formed at the center of the upper surface plate 53. ing. A driven gear 80 that transmits the rotation of the drive motor 78 to the reflection plate 79 is rotatably supported on the outer peripheral surface of the shaft 73. The drive motor 78 is vertically installed on the lower surface of the chassis 70 with the output shaft 81 facing upward, and the output shaft 81 is provided with a pinion 82 that meshes with the driven gear 80. The drive motor
As shown in FIG. 6, the mounting structure of 78 is a vibration-proof structure. As shown in FIG.
The collar 85 is fitted and inserted through A and 84B, and the set screw 86 is inserted through the collar 85 to fix the drive motor 78 to the chassis 70.

The driven gear 80 is prevented from being pulled upward from the shaft 73 by a washer 90, and a cup 91 made of a material having a low friction coefficient is interposed between the lower surface and the chassis 70. The reflecting plate 79 is disposed on the driven gear 80 via the brackets 93, 94 and the bushing 95.

The reflection plate 79 is for reflecting the downwardly directed light 100 emitted from the light bulb unit 41 in a substantially horizontal direction, and is bent and formed in a chevron shape (inverted V shape) in a front view, and the upper surface has A1 or the like. The reflective surface 101 is formed by vacuum evaporation. The rotation center of the reflector 71 is substantially aligned with the optical axis of the light bulb unit 41.

A terminal block 104 (FIG. 7) is fixed to the lower surface of the chassis 70 by a set screw 105, and one end of an external cord 106 is connected to the terminal portion. Further, each terminal portion of the terminal block 104, the light bulb unit 41 and the drive motor 78 are connected by internal cords 107 and 108, respectively. The internal cord 107 is guided upward through the inside of the column 42 and is connected to the terminal piece 45 of the light bulb unit 41.

In such a rotating light, the bulb of the light bulb unit 41 is turned on by operating a switch installed near the driver's seat,
When the drive motor 78 is driven, the rotation of the output shaft 81 is transmitted to the driven gear 80 via the pinion 82, and the driven gear 80 is rotated at a constant speed. Then, the reflecting plate 79 rotates integrally with the driven gear 80 to rotate and reflect the light 100 from the light bulb unit 41 in the horizontal direction. Therefore, when viewed from one point outside the vehicle body, it is observed as a flash of light.

The light bulb unit 41 is fitted in the cylindrical portion 47A of the mounting plate 47, and is pressed and fixed to the mounting plate 47 by the four elastic pressing pieces 66 of the set plate 48, and the positioning recess 67 and the positioning projection 68 are provided. Since it is positioned by the engagement, it does not rattle against vibration or the like, and is stably and reliably fixed at a predetermined position. In this case, since the pressing portion of the elastic pressing piece 66 has a trapezoidal shape in a side view and presses the upper surface of the large diameter portion 42a of the light bulb unit 41 in a line contact state, more reliable pressing fixation can be obtained. Further, since the set plate 48 is fixed to the mounting plate 47 by the engagement between the engaging projection piece 61 and the engaging hole 63 and the set screw 58, it does not move due to vibration or the like.

Although the above embodiment has described the case where the set plate 48 is provided with the four elastic pressing pieces 66, the present invention is not limited to the number thereof, and the size of the light bulb unit 41,
Of course, it can be increased or decreased in accordance with vibration or the like.

[Effects of the Invention] As described above, in the rotating lamp according to the present invention, the set plate is fitted into the light bulb unit attached to the mounting plate, and the light bulb unit is pressed and fixed to the mounting plate by the elastic pressing piece provided on the set plate. With this configuration, the light bulb unit can be fixed stably and reliably, damage to the light bulb unit due to vibration, disconnection, etc. can be prevented, and the life of the light bulb unit and the rotating lamp can be extended. Moreover, the positioning of the light bulb unit by the set plate is also reliable.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a rotary lamp according to the present invention, and FIG. 2 is a plan view showing a mounting structure of a light bulb unit,
FIG. 3 is a view taken in the direction of arrow A in FIG. 2, FIG. 4 is a plan view of a revolving light,
FIG. 5 is a sectional view taken along line VV of FIG. 2, and FIG. 6 is B of FIG.
Sectional drawing which expands and shows a part, FIG. 7 is a C arrow line view of FIG. 1,
FIG. 8 is a perspective view of a conventional light bulb unit mounting structure. 22 …… Body roof, 23 …… Body, 36 …… Glove, 41
...... Light bulb unit, 42 ...... Post, 47 ...... Mounting plate, 47 D ...... Light source mounting hole, 48 ...... Set plate, 64 ...... Center hole, 66 ...... Elastic pressing piece, 61 ...... Engaging projection piece, 63 ... Engagement hole, 67 ... Positioning recess, 68 ... Positioning projection, 79 ... Reflector.

Claims (2)

[Claims] 1. A rotary lamp in which a light bulb unit is detachably fitted and fixed in a light source mounting hole of a mounting plate provided in a globe, and light from the light bulb unit is reflected by a reflection plate which is rotationally driven by a drive motor. , A set plate having a central hole into which the light bulb unit is fitted and a plurality of elastic pressing pieces integrally provided at a peripheral portion of the central hole is fixed to the mounting plate, and the light bulb unit is fixed by the elastic pressing piece. A rotating light, wherein the rotating lamp is elastically pressed and fixed to the mounting plate. 2. The rotating lamp according to claim 1, wherein the set plate has a positioning recess with which a positioning projection of the light bulb unit is engaged.