JPH0214082Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a guide signal rod used by a watchman to indicate the presence of construction work and to guide pedestrians, etc., during road construction at night, for example.

[Conventional technology]

Conventionally, this type of induction signal rod has a configuration in which a white light bulb is provided at the end of a holder that houses a battery, and a tube made of a translucent material is attached to the end of the holder to surround the light bulb. something is being used.
That is, this guide and indicator stick lights up a light bulb using a battery housed in a grip, and the tube is illuminated with the light of the light bulb to provide an indication.

[Problem that the invention attempts to solve]

However, in order to enhance the optical display effect, a guide signal rod with this configuration uses a tube whose length is larger than the length of the gripper, but the light bulb is attached to the outer tube of the gripper. Only one is provided at the end, that is, one end of the cylinder. For this reason, one end of the tube is illuminated by the light from the bulb, but as it approaches the other end, the light from the bulb does not reach enough and it becomes dark. Therefore, the problem is that the light bulb, which is the light source lamp, cannot emit light uniformly over the entire length of the tube, making it impossible to provide sufficient optical display as a guidance signal rod, making it difficult to confirm the guidance signal rod from a distance. There is.

This invention was made based on the above circumstances,
The light source lamp can illuminate the entire tube evenly,
It is an object of the present invention to provide a guide signal rod that can provide good optical display.

[Means for solving problems]

In order to achieve the above object, the guide signal rod of the present invention includes a grip body that houses a battery and is provided with an electric circuit incorporating the battery and a switch, and a handle made of a translucent material and attached to the grip body. an outer cylinder formed along the longitudinal direction inside the outer cylinder, and an inner cylinder made of a translucent material and having a large number of thin protrusions lined up on the inner surface; A plurality of light bulbs are provided, each of which is connected to the electric circuit of the gripping body.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the guiding signal rod of the present invention.

In the figure, 1 is a cylindrical grip made of synthetic resin, and a plurality of batteries 2 are housed in series inside this grip 1, and an end cover 3 is removably attached to the batteries 2. The grip body 1 can be inserted and removed from an opening at one end thereof. A socket 4 having a reflecting plate 5 is provided at the other end of the grip 1 via a socket receiver 6, and a light bulb 7 is attached to this socket 4. The gripping body 1 is provided with a battery spring 8 that contacts the electrode of the battery 2 attached to the end cover 3, a conductor 9 connected to this battery spring 8, and a switch 10 connected to this conductor 9. It constitutes a circuit. Note that the battery spring 8 presses the battery 2 so that the electrodes of the battery 2 come into contact with the base of the light bulb 7 attached to the socket 4. In the figure, reference numeral 11 denotes a cylindrical outer tube having a longer length than the gripping body 1, and is made of a translucent material, such as a transparent synthetic resin. This outer cylinder 11
is disposed on the same axis as the gripping body 1, its one end opening is screwed and connected to the end of the gripping body 1 to which the socket 4 is attached, and the other end opening of the outer cylinder 11 is An end cover 12 is attached by screwing together. A socket 13 for attaching a light bulb 15 is attached to the end cover 12 via a socket receiver 14, and a conductor 16 connected to the socket 13 is provided on the end cover 12. Reference numeral 17 denotes an inner cylinder, which is formed as a rectangular cylinder that is smaller in size than the outer cylinder 11 and is open at both ends. When lined up as shown in FIG. 3, the inner cylinders 12 form a rectangular shape made of red transparent synthetic resin.
It is constructed by combining two resin plates 18 into a cylindrical shape. Each resin plate 18 has a large number of small pyramidal projections 18a regularly arranged on its inner surface. As shown in FIGS. 4 and 5, this pyramidal projection 18a is shaped like a cube with half of it embedded inside the resin plate 18, and is a triangular pyramid formed by combining three rhombic slopes 18b. It is what you do. A large number of pyramidal projections 18a are arranged alternately in a staggered manner, and a recess in the form of an upside-down pyramidal projection 18a is formed in a portion sandwiched between the pyramidal projections 18a arranged in a staggered manner. . That is, the pyramidal projections 18a and the recesses are arranged alternately. Each of the pyramidal protrusions 18a arranged in this way directs light incident from all directions onto the three slopes 1.
8b and can be reflected. The inner cylinder 17 is disposed inside the outer cylinder 11 along the longitudinal direction, one end surface of which contacts the end surface of the end of the gripping body 1 to which the socket 4 is attached, and the other end surface of the inner cylinder 17 that contacts the end cover of the end cap. The inner cylinder 17 as a whole is held stationary by contacting the inner end surface of the cylinder 12. That is, the inner cylinder 17 is held under pressure by the gripper 1 and the end cover 12. In this case, the opening at one end of the inner tube 17 faces the light bulb 7 attached to the socket 4 of the gripper 1, and the opening at the other end surrounds the bulb 15 attached to the socket 13 of the end cover 12.
Further, in order to electrically connect the sockets 5 and 12, two wiring holes 19 and 19 are formed in the inner cylinder 17 over the entire length in the longitudinal direction. , 20 are inserted. Then, at one end opening of the inner cylinder 17, the ends of the conductive wires 20, 20 come into contact with a part of the socket 4 (reflector plate 5) provided on the gripping body 1 and the conductor 9, and the other end of the inner cylinder 17 At the opening, the ends of the conductive wires 20, 20 are in contact with a portion of the socket 13 provided in the end cap 12 and the conductor 16. Therefore, both the sockets 4 and 13 are electrically connected via the conductive wires 20 and 20, thereby forming an electric circuit in which the battery 2, the switch 10, and the light bulbs 7 and 15 are connected in series. Note that by removing the grip 1 from the outer tube 11, the light bulb 7 attached to the socket 4 can be replaced, and by removing the end cover 12 from the outer tube 11, the light bulb 15 in the socket 13 can be replaced. . The outer cylinder 11 protects the inner cylinder 17 and increases the strength of the entire guide signal rod.

In the induction signal rod configured in this way, the battery 2 and the light bulbs 7, 15 are connected by operating the switch 10.
When the electric circuit connecting the two is closed, the light bulb 7 attached to the socket 4 of the grip body 1 and the light bulb 15 attached to the socket 13 of the end cover 12 are turned on, and light is irradiated onto the inner cylinder 17 from both ends. In this case, the light from one bulb 7 uniformly illuminates the area from one end of the inner tube 17 to the center, and the light from the other bulb 15 uniformly illuminates the area from the other end to the center of the inner tube 17. irradiate. A part of the light emitted from the light bulbs 7 and 15 is reflected along the slopes 18b of a large number of pyramidal protrusions 18a formed on the inner surface of each resin plate 18 of the inner cylinder 17, and is further reflected on other resin plates 18. The light reaches the slope 18b of the inner pyramidal projection 18a and is reflected. In this way, a portion of the light is repeatedly reflected and travels in the axial direction through the inner space of the inner tube 17, and then passes through each resin plate 18 and exits the inner tube 17. Also, light bulbs 7,1
The other part of the light emitted from 5 is directly transmitted to each resin plate 1.
8 and exits from the inner cylinder 17. When these lights pass through the interior of each resin plate 18, they are refracted and reflected by the slopes 18b of the many pyramidal protrusions 18a, and exit the inner cylinder 17 in a diffused state. In FIG. 1, FIG. 2, FIG. 4, and FIG. 5, broken lines indicate an example of the progress of light.

The combination of the light bulbs 7 and 15 illuminating the entire axial direction of the inner cylinder 17 and the fact that the light emitted by the light bulbs 7 and 15 is diffusely reflected and diffused by the inner cylinder 17 makes it possible to The entire direction is uniformly bright. Therefore, the inner tube 17 shining brightly through the outer tube 11 can be clearly seen from the outside of the guide signal rod.

Therefore, when the above-mentioned guidance signal rod is used during road construction at night, for example, the guidance signal rod is displayed brightly and its presence can be easily confirmed even from a distance at night.

In addition, in the above-mentioned embodiment, two light bulbs are distributed and provided at both ends of the inner cylinder, but the present invention is not limited to this, and three or more light bulbs may be provided with an interval in the longitudinal direction of the inner cylinder. It may also be provided.

[Effect of idea]

As explained above, according to the guide signal rod of the present invention, a plurality of light bulbs are provided as light source lamps at intervals in the longitudinal direction of the inner cylinder, so that the entire inner cylinder is uniformly illuminated by the light of these light bulbs. Furthermore, the inner tube effectively reflects and diffuses light from multiple bulbs, so
Excellent optical display effects can be obtained and can be easily seen even at a distance at night.

[Brief explanation of the drawing]

The drawing shows an embodiment of the guide signal rod of the present invention,
Fig. 1 is a longitudinal sectional view, Fig. 2 is a sectional view along the line shown in Fig. 1, Fig. 3 is a perspective view showing the inner cylinder, and Figs. 4 and 5 are enlarged views of the protruding surface of the inner cylinder. FIG. 1... Gripping body, 2... Battery, 7... Light bulb, 11
... Outer cylinder, 12 ... End cover, 15 ... Light bulb, 17 ...
...Inner cylinder.

Claims (1)

[Scope of utility model registration request] a grip body that houses a battery and is provided with an electric circuit incorporating the battery and a switch; an outer cylinder made of a translucent material and attached to the grip body;
An inner cylinder made of a transparent material is provided along the longitudinal direction inside the outer cylinder and has a large number of thin protrusions lined up on the inner surface, and a plurality of inner cylinders are provided inside the inner cylinder at intervals in the longitudinal direction. and a light bulb, each of which is connected to the electric circuit of the gripping body.