JPH0641267Y2 - Stacked indicator light - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a stacked display lamp, and more particularly to a small-sized stacked display lamp assembly structure.

PRIOR ART Stacked indicator lights of interest to this invention typically include a unit consisting of a light source providing continuous or blinking light and a transparent envelope surrounding it, such a unit being desired. According to the above, it is configured so that it can be stacked in one stage or a plurality of stages. When a plurality of units are stacked, the outer cylinders provided in the respective units are colored differently from each other so that the outer cylinders of any color can be stacked in any order. Such a stack type indicator light is used for transmitting various information.

Generally, as one of the methods of mechanically integrating a plurality of units in a stacked state, there is one that employs a structure in which a plurality of outer cylinders are sequentially screwed from a base portion. According to this method, it is possible to easily replace the outer cylinder and increase or decrease the number of units without using a special tool.

[Problems to be Solved by the Invention] However, in the above-mentioned laminated display lamp,
When this is used, for example, as a means for reporting abnormalities in processes, lack of parts, etc. related to the manufacturing line of a factory, it is only screwed in due to vibration caused by various assembly or processing devices provided in the manufacturing line. The plurality of integrated outer cylinders may gradually come loose. Such loosening of the outer tube eventually leads to disassembly of the laminated indicator light, and thus must be prevented. Therefore, the operator must constantly monitor the looseness of the outer cylinder, and if looseness occurs, always pay attention to re-tightening the outer cylinder.

Therefore, the present invention intends to provide a laminated display lamp having a structure capable of preventing the loosening of the outer cylinder as described above.

[Means for Solving the Problems] In the present invention, a plurality of transparent outer cylinders are stacked by being sequentially screwed from a base portion, and a plurality of support bodies each holding a light source are sequentially arranged in the outer cylinder. It is directed to a stacked type indicator light in which a canopy is screwed so as to close the upper surface of the outer cylinder which is connected to form an integral strut, and the technical problem described above is solved. To solve the problem, it is characterized by having the following configuration.

That is, the fixing plate is fitted to the uppermost support member at the uppermost position in a state where rotation is prohibited. Then, between the upper surface of the fixing plate and the lower surface of the canopy, an elastic body made of rubber that exerts an elastic force on both of them is arranged. This elastic body is attached to the center of the fixing plate. In addition, a ring-shaped protrusion that fits the upper end of the elastic body is formed on the lower surface of the canopy.

[Operation] The elastic body made of rubber described above exerts a relatively large frictional force on both the fixing plate and the canopy, and thus gives the fixing plate a state in which it cannot easily rotate. Since the fixing plate is in a state in which rotation is prohibited with respect to the uppermost support body forming a part of the support column located in the outer cylinder, as a result, the canopy easily supports the support column. Is kept in a state where it cannot rotate. In this way, if the canopy cannot be easily rotated, the outer cylinder sandwiched between the canopy and the base cannot easily rotate, and therefore the outer cylinder may be loosened by vibration or the like. To be prevented.

In addition, since the ring-shaped convex portion to which the upper end portion of the elastic body is fitted is formed on the lower surface of the canopy, the above-mentioned frictional force can be further increased.

[Effects of the Invention] As described above, according to the present invention, the outer cylinder and the canopy can be assembled by simply screwing them in without using any special tool. The outer cylinder is prevented from loosening due to vibration or the like applied thereafter. Therefore, even if the laminated indicator lamp according to the present invention is used in connection with, for example, a manufacturing line, loosening due to vibration is prevented, and the operator constantly monitors the looseness and retightens the loose outer cylinder. You can save time.

Further, since the elastic body is attached to the center of the fixing plate, when the canopy is screwed into the outermost cylinder, the canopy can be rotated relatively easily regardless of the frictional force exerted by the elastic body. .

Further, in this invention, a structure for preventing the loosening of the outer cylinder is provided by substantially only the elastic body. Therefore, the degree of modification from the conventional product and the number of new parts required to obtain the effect of the present invention can be small, and as a result, the cost does not increase so much compared with the conventional product. It is possible to provide the laminated display light according to the present invention.

[Embodiment] FIG. 1 and FIG. 2 are front views showing a laminated display lamp 1 according to an embodiment of the present invention. In FIG. 1, a part of the outer housing is cut away so as to show a part of the internal structure of the laminated indicator light.

With reference to FIG. 1 and FIG. 2, the laminated display light 1 includes a base portion 2. Although not shown, various electric elements are built in the base portion 2.

A plurality of, for example, three transparent outer cylinders 3a, 3b, 3c are sequentially screwed into the base portion 2 to be laminated. Therefore, each of the outer cylinders 3a, 3b, 3c has, for example, a male screw portion 4 at the upper end thereof, and has a female screw portion 5 corresponding to the male screw portion 4 at the lower end thereof.
Further, as the outer cylinders 3a, 3b, 3c, for example, those differently colored are used.

In the above-mentioned outer cylinders 3a, 3b, 3c, a plurality, more accurately, the same number as the outer cylinders 3a, 3b, 3c, that is, three support bodies 6a, 6b, 6c.
Are sequentially connected to form an integral strut 7. Support
6a, 6b and 6c are obtained by tobacco resin molding and have the same structure. Typically, the uppermost support 6c and a portion of the lower support 6b are shown disassembled in FIGS. 3 and 4. Incidentally, FIG. 4 is a sectional view taken along the line IV-IV in FIG.

For example, the support 6c includes a disc portion 8 and the upper surface thereof is
A pair of columnar portions 9 extending upward from two diametrically opposed positions are provided. A socket accommodating portion 10 is provided in the portion sandwiched between the pair of columnar portions 9. A socket (not shown) is built in the socket housing portion 10, and the lamp 11 as a light source shown in FIG. 1 is fitted into the socket. A pair of legs 12 are provided on the lower surface of the disk portion 8 so as to project downward, corresponding to the positions where the columnar portions 9 are provided.

A hook 13 is formed on each one surface of the leg portion 12. On the other hand,
As shown in FIG. 4, a concave portion 14 is formed on each upper end surface of the columnar portion 9.
Is provided on one side wall defining the recess 14 with a hook.
15 are formed. Therefore, the support shown in FIG.
As can be seen from the relationship between the leg portion 12 of 6c and the columnar portion 9 of the support 6b, the leg portion 12 is received in the concave portion 14, and in that state,
The hook 13 engages with the hook 15. Further, a recess 16 is provided on the lower surface of the disc portion 8 and around the leg portion 12. The upper end of the columnar portion 9 fits into the recess 16 in the state where the leg 12 fits into the recess 14 as described above. In this way, the plurality of supports 6a, 6b, 6c are sequentially connected to form an integral support column 7 (FIG. 1).

A penetrating path 17 is provided in each of the columnar portions 9 of the supports 6a, 6b, 6c, as shown in FIG. This penetrating path 17 is used for passing a lead wire for wiring to the lamp 11 (FIG. 1), for example.

As shown in FIGS. 1 and 2, the outermost cylinder 3c located at the uppermost position.
A canopy 18 is screwed into the so that its upper surface is closed.
Further, on the uppermost support body 6c, a fixed plate 19 fitted to the support body 6c in a state where rotation thereof is prohibited is arranged. The fixing plate 19 has a recess 20 as shown in FIG.
By fitting the upper end portion of the columnar portion 9 of the support body 6c here, the state in which the rotation is prohibited is maintained.

An elastic body 21 made of rubber is attached to the center of the fixed plate 19. The elastic body 21 can be replaced by a commercially available cord bush made of rubber, for example. As can be seen from the shape shown in FIG. 1, the elastic body 21 made of such a cord bush is pushed from below into a through hole provided in the central portion of the fixing plate 19 to achieve a desired mounting state. To be done.

As shown in FIG. 1, after the fixing plate 19 is fitted on the upper portion of the support body 6c, the canopy 18 is screwed into the outer cylinder 3c.
An elastic body 21 is arranged between the upper surface of 19 and the lower surface of the canopy 18 so as to exert an elastic force on both of them. At this time, the elastic body 21 exerts a relatively strong frictional force on both the canopy 18 and the fixed plate 19. In addition, in order to further increase such frictional force, a ring-shaped convex portion 22 into which the upper end portion of the elastic body 21 is fitted is formed on the lower surface of the canopy 18.

In this way, the canopy 18 is fixed to the fixing plate 19 and thus to the support 6
A state in which the support 7 made of a, 6b, 6c cannot easily rotate is achieved. As a result, rotation of the outer cylinders 3a, 3b, 3c is prevented, and therefore, the outer cylinders 3a, 3b, 3c are prevented from loosening.

As described above, according to the illustrated embodiment, the support bodies 6a, 6b, 6c are assembled and the outer cylinders 3a, 3b, 3c are used without using a special tool.
And the canopy 18 can be screwed in. Then, while performing such an assembly or screwing operation, it is easy to arbitrarily change the number of units composed of a combination of the outer cylinder and the support, or change the combination or order of the colors of the outer cylinder. You can In particular, the laminated display lamp 1 of the illustrated embodiment has an outer diameter of the outer cylinders 3a, 3b, 3c of 40.
Since the use of bolts and the like for maintaining the assembled state is limited for such a small stacked indicator lamp 1 as small as about mm, it is possible to assemble it into a desired shape without using a special tool. It would be extremely advantageous if possible.

[Brief description of drawings]

FIG. 1 is a front view of a laminated type indicator lamp 1 according to an embodiment of the present invention, in which a part of the internal structure is cut away. FIG. 2 is a front view showing the appearance of the laminated display light 1 shown in FIG. FIG. 3 shows a part of the support 6b, the support 6c, and the fixing plate 19 included in the laminated display light 1.
It is a front view which decomposes | disassembles and shows. FIG. 4 shows line IV in FIG.
It is a sectional view taken along line-IV. In the figure, 1 is a laminated indicator light, 2 is a base part, 3a, 3b,
3c is an outer cylinder, 4 is a male screw part, 5 is a female screw part, 6a, 6b and 6c are supports, 7 are columns, 11 is a lamp, 18 is a canopy, 19 is a fixing plate,
21 is an elastic body.

Claims (1)

[Scope of utility model registration request] 1. A plurality of transparent outer cylinders are sequentially screwed from a base portion so as to be laminated, and a plurality of support bodies each holding a light source are sequentially connected in the outer cylinder to form an integral column. The outer cylinder that is configured and is at the top,
In a stack type indicator light in which a canopy is screwed so as to close its upper surface, a fixing plate fitted in a state in which rotation is prohibited is provided with respect to the uppermost part of the support, and the fixing is performed. Between the upper surface of the plate and the lower surface of the canopy, an elastic body made of rubber that exerts an elastic force on both of them is arranged, and the elastic body is attached to the central portion of the fixing plate and the canopy is attached. A ring-shaped convex part for fitting the upper end of the elastic body is formed on the lower surface of the laminated display lamp.