TWI805311B - Hard hats with built-in electronics - Google Patents

Abstract

The safety helmet of the present invention comprises a cap body, a signal transmitting receiver and a reflecting device. The cap body has a hollow chamber, and the signal transmitter and receiver are arranged in the cap body and emit signals toward the hollow chamber. The reflection device has an elastic body and a reflective element. The body is arranged on the same side as the signal transmitter and receiver to reflect the signal emitted by the signal transmitter and receiver. When the elastic body is not pressed, the distance between the reflective element and the signal transmitter and receiver is relatively long, so that the signal transmitter and receiver The reflector cannot receive the reflected signal. When the elastic body is compressed, the distance between the reflective element and the signal transmitter and receiver will be shortened, so that the signal transmitter and receiver can receive the reflected signal smoothly. At this time, the electronic equipment built in the cap will be can be activated.

Description

Hard hats with built-in electronics

The invention relates to a safety helmet, in particular to a safety helmet capable of improving sensing sensitivity and saving power.

Please refer to Fig. 1, a kind of conventional safety helmet 1 shown in Fig. 1 installs a light-emitting element 3 and a light-receiving element 4 respectively on the left and right two opposite sides of cap body 2, when the user puts on, as shown in Fig. 2, use The head 5 of the wearer will block the light sent from the light-emitting element 3 to the light-receiving element 4, so that the light-receiving element 4 cannot receive the signal. At this time, the electronic equipment (such as a music player) built in the cap body 2 can be activated. Conversely, when the user takes it off, as shown in Figure 1, the light-receiving element 4 will continue to receive the light sent by the light-emitting element 3, and the aforementioned electronic equipment (such as a music player) will not be activated. However, because the relative distance between the light-emitting element 3 and the light-receiving element 4 is too far, and when the user is not wearing it, the light-emitting element 3 still sends signals to the light-receiving element 4 continuously, which will cause rapid power consumption.

Please refer to FIG. 3 again. Another conventional safety helmet 6 shown in FIG. 3 integrates the light-emitting element 3 and the light-receiving element 4 into a transmitting and receiving module 7 and is arranged on the same side of the cap body 2. When the user wears it, As shown in Figure 4, the light emitted by the light-emitting element 3 is reflected back by the user's head 5 and received by the light-receiving element 4. At this time, the electronic equipment (such as a music player) built in the cap body 2 can be detected. Conversely, when the user takes it off, as shown in Figure 3, because the light-receiving element 4 cannot receive a signal, the aforementioned electronic equipment (such as a music player) will not be activated. However, the amount and color of the hair on the user's head 5 will affect the sensing sensitivity.

The main purpose of the present invention is to provide a safety helmet, which can improve the sensing sensitivity and effectively save power.

In order to achieve the above main purpose, the safety helmet of the present invention includes a cap body, a signal transmitter receiver, and a reflection device. The cap body has a hollow chamber; the signal transmitting receiver is arranged in the cap body and emits a signal toward the hollow chamber; the reflection device has an elastic body and a reflective element, and the elastic body is arranged on the cap body toward On one side of the hollow chamber, the reflective element is arranged on the elastic body and corresponds to the signal transmitting receiver and is located on the same side to reflect the signal sent by the signal transmitting receiver, when the elastic body is a In the initial state, the distance between the reflective element and the signal transmitter-receiver causes the signal transmitter-receiver to be unable to receive the signal reflected by the reflective element. When the elastic body is stressed and in a compressed state, the The distance between the reflective element and the signal transmitter-receiver allows the signal transmitter-receiver to receive the signal reflected by the reflective element. At this time, an electronic device (such as a music player) built in the cap body can be start up.

As can be seen from the above, the safety helmet of the present invention uses the elastic body to adjust the distance between the reflective element and the signal transmitter receiver, so that the user can control the activation of the aforementioned electronic equipment when wearing it, because the two are arranged on the same side and The relative distance is relatively short, and it will not be affected by hair volume and hair color, so compared with the previous technology, the sensing sensitivity can be significantly improved, and power consumption can also be effectively saved.

Preferably, when the elastic body is in the initial state, there is a first distance between the reflective element and the signal transmitter-receiver, and when the elastic body is in the compressed state, the reflective element and the signal transmitter-receiver There is a second distance between the devices which is smaller than the first distance.

Preferably, the signal transmitting receiver and the reflecting device can be arranged on the top or side of the hollow chamber according to actual needs, as long as they are located on the same side.

The detailed structure, features, assembly or usage of the safety helmet with built-in electronic equipment provided by the present invention will be described in the subsequent detailed description of the implementation. However, those with ordinary knowledge in the field of the present invention should understand that the detailed description and the specific embodiments enumerated for implementing the present invention are only for illustrating the present invention, and are not intended to limit the scope of the patent application of the present invention.

The applicant hereby explains that in the entire specification, including the embodiments described below and the claims of the scope of the patent application, the nouns related to direction are based on the directions in the drawings. Secondly, in the embodiments and drawings to be described below, the same component numbers represent the same or similar components or their structural features.

Please refer to FIG. 5 , the safety helmet 10 of the present invention includes a cap body 20 , a signal transmitter receiver 30 , and a reflection device 40 .

The cap body 20 has a hollow chamber 22 for the user to wear, and the material and shape are not limited in this embodiment.

In this embodiment, the signal transmitter receiver 30 is an infrared transmitter receiver as an example, but not limited thereto. The signal transmitter receiver 30 is disposed in the cap body 20 and transmits a signal (light in this preferred embodiment) toward the hollow chamber 22 .

The reflector 40 has an elastic body 42 and a reflective element 44. The elastic body 42 is made of a stretchable elastic material (such as rubber, foam or similar elastic material). The elastic body 42 is arranged on the cap body 20 towards the hollow cavity. One side of the chamber 22 (that is, the inner side of the cap body 20) protrudes from the hollow chamber 22. In this preferred embodiment, the reflective element 44 is made of a material with better reflection signal characteristics, such as metal , coated surfaces, and the like. The reflective element 44 is disposed in the elastic body 42 and corresponds to the signal transmitter receiver 30 and is located on the top of the hollow chamber 22 to reflect the signal (light) emitted by the signal transmitter receiver 30 . In this way, when the elastic body 42 is not stressed and assumes the initial state S1 shown in FIG. 5, there is a first distance D1 between the reflective element 44 and the signal transmitter receiver 30. As a result, the strength of the reflected signal is weak, so that the signal transmitter receiver 30 cannot successfully receive the signal (light) reflected by the reflective element 44; There is a second distance D2 which is smaller than the first distance D1 between the reflective element 44 and the signal transmitter receiver 30. At this time, because the distance between the two is shortened, the intensity of the reflected signal can reach the signal transmitter receiver 30 smoothly, so that the signal The transmitter receiver 30 can receive the signal (light) reflected by the reflective element 44 .

What needs to be added here is that the reflective element 44 and the signal transmitter receiver 30 may not only be arranged on the top of the hollow chamber 22, but may also be arranged on the side of the hollow chamber 22. In this case, the elastic body 42 is also It can be arranged around the inner side of the cap body 20 and connected with the reflective element 44 . In other words, the installation positions of the reflection element 44 and the signal transmitter receiver 30 can be adjusted according to actual needs, as long as they are arranged on the same side.

It can be seen from the above that when the user puts on the safety helmet 10, the user's head 12 will squeeze the elastic body 42, forcing the elastic body 42 to be in the compressed state S2 as shown in Figure 6. 30 can receive the reflected signal, so the electronic equipment (such as a music player) built in the cap body 20 can be activated. Once the user takes off the safety helmet 10, the elastic body 42 returns to the initial state S1 shown in Figure 5 by utilizing its own material properties. At this time, because the signal transmitter and receiver 30 cannot receive the reflected signal, the above-mentioned electronic equipment will be turned off immediately. . In other words, the safety helmet 10 of the present invention uses the elastic body 42 to adjust the distance between the reflective element 44 and the signal transmitting receiver 30, because the two are arranged on the same side and the relative distance is relatively short, and will not be affected by the amount of transmission and the transmission. Influenced by the color depth, compared with the prior art, the sensing sensitivity can be significantly improved, and the power consumption can be effectively saved, thereby achieving the purpose of the present invention.

"Prior Technology"

1: hard hat

2: cap body

3: Light emitting element

4: Light receiving element

5: head

6: hard hat

7: Transmitting and receiving module

"this invention"

10: hard hat

12: head

20: cap body

22: Hollow chamber

30: Signal transmitter receiver

40: Reflection device

42:Elastomer

44: reflective element

D1: first distance

D2: second distance

S1: initial state

S2: Stressed state

Figure 1 is a sectional view of a conventional safety helmet. FIG. 2 is a schematic diagram of a user wearing the conventional safety helmet shown in FIG. 1 . Fig. 3 is a sectional view of another conventional safety helmet. FIG. 4 is a schematic diagram of a user wearing the conventional safety helmet shown in FIG. 3 . Fig. 5 is a cross-sectional view of a safety helmet according to a first embodiment of the present invention. Fig. 6 is similar to Fig. 5, and mainly shows the state after the user wears it. Fig. 7 is a bottom view of the safety helmet of the second embodiment of the present invention

10: hard hat

20: cap body

22: Hollow chamber

30: Signal transmitter receiver

40: Reflection device

42:Elastomer

44: reflective element

D1: first distance

S1: initial state

Claims (3)

A safety helmet, comprising: a cap body with a hollow chamber; a signal transmitter and receiver disposed in the cap body and emitting a light toward the hollow chamber; and a reflection device with an elastic body and a reflector Element, the elastic body is arranged on the side of the cap body facing the hollow chamber, the reflective element is arranged on the elastic body and corresponds to the signal transmitting receiver and is located on the same side to reflect the signal transmitted by the signal transmitting receiver The emitted light, when the elastic body is in an initial state, the distance between the reflective element and the signal transmitter-receiver causes the signal transmitter-receiver to be unable to receive the light reflected by the reflective element, when the elastic body When a force is applied to a compressed state, the distance between the reflective element and the signal transmitter-receiver allows the signal transmitter-receiver to receive the light reflected by the reflective element; wherein, when the elastic body is in the initial state When the reflective element and the signal transmitting receiver have a first distance, when the elastic body is in the compressed state, there is a first distance between the reflective element and the signal transmitting receiver which is smaller than the first distance Two distances. The safety helmet as claimed in claim 1, wherein the signal transmitting receiver and the reflecting device are located on the top of the hollow chamber. The safety helmet according to claim 1, wherein the signal transmitting receiver and the reflecting device are located on one side of the hollow chamber.

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