JP2012207333A - Helmet with collision preventive function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an object from colliding against a head part, or to reduce shock caused by the collision.SOLUTION: A helmet with collision preventive function includes a helmet body 2 worn by a person, a detector 3 arranged in the helmet body 2 for detecting a rate of approach to an object body, and an alarm 4 for outputting a warning when the approaching speed detected by the detector 3 is more than a predetermined value. The detector 3 and the alarm 4 are stored in one case served as a collision preventive unit 5.

Description

  The present invention relates to a helmet with a collision prevention function that prevents or reduces the collision of an object with a head.

  In facilities such as power plants and factories, laying objects such as pipes are extended from mechanical equipment, and there is a risk that an operator who inspects the facility may injure the head by accidentally colliding with the laying object. Furthermore, if the worker suddenly stands up in a narrow space where the worker cannot work without crouching or squatting, there is a risk that the head will collide with the laying object above the head. For this reason, the worker wears a helmet so as to alleviate the impact caused by the collision of the head with the laying object.

  However, even if a helmet is worn, attention to the surroundings may be reduced when concentrating on the work, and when the head collides with the laying object in such a state, the impact is very large. Further, as a technique for protecting the head, a traffic safety helmet is known that includes a receiving unit that receives radio waves transmitted from an emergency vehicle, a conversion unit that converts the radio waves into light and appeals visually. (For example, refer to Patent Document 1).

JP 2002-13019 A

  By the way, although the conventional helmet can relieve the impact when a laying object collides with an operator's head, it cannot prevent the collision itself. If the head is unexpectedly collided with a laying object or the like (at the time of an unconscious collision), it may lead to a major disaster. Moreover, although the technique of patent document 1 can display visually that an emergency vehicle approaches, it cannot prevent that an object collides with a head.

  Then, an object of this invention is to provide the helmet with a collision prevention function which can prevent that a thing collides with a head, or can reduce the impact by a collision.

  In order to achieve the above object, the invention according to claim 1 is a helmet body that is worn by a person, a detection means that is disposed in the helmet body and detects an approach speed to an object, and is detected by the detection means. A helmet with a collision prevention function, comprising: alarm means for outputting an alarm when the approach speed is equal to or higher than a predetermined value.

  According to this invention, when an object approaches the person's head with the person wearing the helmet, the approach speed is detected by the detecting means, and the alarm is issued when the detected approach speed is equal to or greater than a predetermined value. An alarm is output from the means.

  According to a second aspect of the present invention, in the helmet with a collision prevention function according to the first aspect, the alarm means outputs a vibration as the alarm.

  According to a third aspect of the present invention, in the helmet with a collision prevention function according to the first or second aspect, the detection means is arranged on the helmet main body so as to be positioned on the back of the head of the person wearing the helmet main body. It is provided.

  According to the first aspect of the present invention, when the approach speed to the object is equal to or higher than a predetermined value, an alarm is output from the alarm means, so that the object is approaching the person wearing the helmet. It is possible to call attention and prevent collision between the head and the object. Or, even if a person wearing a helmet cannot avoid a collision between the head and an object due to a sudden movement, etc., an unintentional collision can be prevented by calling attention. It is possible to reduce the impact. On the other hand, when the approach speed to the object is less than a predetermined value, that is, when approaching the object slowly, no alarm is output, but even if it touches the object, the head is not shocked. In this way, when approaching the object slowly, no warning is output, so that no unnecessary attention is given to the person wearing the helmet.

  According to the second aspect of the present invention, since vibration is output as an alarm, even if a helmet is worn in a noisy place or the like, it is possible to reliably call attention.

  According to the third aspect of the present invention, since the detecting means is disposed so as to be located on the back of the head of the person wearing the helmet, the object on the back of the head is difficult to enter the field of view of the person wearing the helmet. Even when approaching, it is possible to call attention appropriately.

It is a side view which shows the state which mounted | wore the helmet with a collision prevention function concerning embodiment of this invention. It is a schematic block diagram of the detector and alarm device with which the helmet with a collision prevention function of FIG. 1 is equipped. It is a figure which shows the case where the helmet with a collision prevention function of FIG. 1 approaches an object. It is a figure which shows the case where an object approaches the helmet with a collision prevention function of FIG.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 4 show an embodiment of the present invention. FIG. 1 shows an appearance of a helmet 1 with a collision prevention function according to an embodiment of the present invention, and FIG. 2 shows a detector (detection means) 3 and an alarm (alarm means) provided on the outer surface of the helmet 1 with a collision prevention function. ) 4 is a schematic configuration diagram. The helmet 1 with a collision prevention function is a helmet that outputs an alarm when the head of a person wearing the helmet and an object such as a laying object provided in the factory suddenly approach each other. And a detector 3 and an alarm device 4 disposed on the outer surface of the helmet body 2. In addition, the detector 3 and the alarm device 4 are housed in a single housing and constitute a collision prevention unit 5.

  The helmet body 2 is made of, for example, polycarbonate or polyethylene, and can reduce the impact when an object collides with the head of a person wearing the helmet body 2. Out of the outer surface of the helmet body 2, the collision prevention units 5 are respectively attached to the positions of the occipital side and the occipital side of the person wearing it.

  The detector 3 is a device that detects an approach between the detector 3 and an object and calculates an approach speed thereof, and includes an ultrasonic detector 31 and a speed calculator 32.

  The ultrasonic detection unit 31 detects and detects the presence of an object by outputting and irradiating an ultrasonic wave to the outside and receiving the ultrasonic wave reflected from the object when the object exists. The speed calculator 32 calculates the speed at which the detector 3 approaches the object based on the ultrasonic wave (reflected wave) from the object received by the ultrasonic detector 31. That is, the distance between the detector 3 and the object is calculated based on the time from when the ultrasonic wave is applied until the reflected wave is received. When the distance is short, the approach speed is calculated based on the time ratio. To do. Here, until the presence of the object is detected, the ultrasonic detection unit 31 periodically irradiates the ultrasonic wave. When the presence of the object is detected, the irradiation energy can be reduced by continuously irradiating the ultrasonic wave. It is illustrated. The approach speed / calculation result calculated in this way is transmitted to the alarm device 4.

  The alarm device 4 is a device that receives an approach speed from the detector 3 and outputs an alarm when the approach speed is equal to or higher than a predetermined value, and includes a determination unit 41 and a vibrator 42.

  The determination unit 41 receives the approach speed between the detector 3 (collision prevention unit 5) and the object from the speed calculation unit 32, and when the speed is equal to or higher than a predetermined value, transmits a drive command to the vibrator 42, The vibrator 42 is driven. Here, the “predetermined value” is set based on the surrounding environment / working environment of the person wearing the helmet 1 with a collision prevention function, and the material or shape of the target object that may cause collision or contact. . For example, if the work environment of the person wearing the helmet 1 has a large metal column with sharp corners, and the head collides with the head, if the impact or disaster is large, the “predetermined value” is set to be slow and small. ing. That is, even when approaching relatively slowly, vibration (alarm) is output.

  The vibrator 42 is a vibration generating device provided with a motor, and receives a drive command from the determination unit 41 to drive the motor and generate vibration. Here, in this embodiment, vibrations having a constant magnitude are generated, but vibrations having different magnitudes may be output according to the approach speed.

  Such a switch for starting and stopping the detector 3 and the alarm device 4 is provided in the collision prevention unit 5.

  Next, the operation of the helmet 1 with a collision prevention function having such a configuration will be described.

  First, as shown in FIG. 3, a description will be given of a case where the worker M cannot work if the laying object (object) A such as a ceiling or piping is low and squats or sits down. In this case, the worker M wears the helmet 1 with a collision prevention function on the head, turns on the switch of the collision prevention unit 5, and works in a narrow space. At this time, as described above, the ultrasonic wave is applied to the laying object A from the ultrasonic detection unit 31, and the presence of the laying object A is detected based on the reflected wave from the laying object A. Then, when the worker M stands up or raises the head, when the head of the worker M approaches the laying object A, the speed calculation unit 32 calculates the approaching speed to the laying object A. The approach speed is transmitted to the determination unit 41. Subsequently, the determination unit 41 determines whether or not the approach speed is equal to or greater than a predetermined value. If the approach speed is equal to or greater than the predetermined value, that is, if the approaching object A is suddenly approached, the vibrator 42 is activated and vibration is generated. appear.

  Next, the case where the worker M performs work in a factory where a crane and a hoist are installed will be described. Also in this case, the worker M performs work by wearing the helmet 1 with a collision prevention function on the head and turning on the switch of the collision prevention unit 5. At this time, as shown in FIG. 4, when the hook (object) B of the crane approaches the head of the worker M, the approach speed is calculated in the same manner as in FIG. In this case, the vibrator 42 is activated and vibration is generated.

  As described above, vibration caused by the vibrator 42 occurs both when the worker M suddenly approaches the object A and when the object B suddenly approaches the worker M. For this reason, it is possible to alert the worker M and prevent the collision with the objects A and B, or it is possible to prevent the unintentional collision and reduce or alleviate the impact caused by the collision. On the other hand, when approaching the objects A and B at such a slow speed as not to give a shock to the head, no vibration is generated, so that no unnecessary attention is given to the worker M.

  Further, since vibration is output as an alarm, even if the helmet 1 is worn in a noisy place or the like, the worker M can be surely alerted. In addition, since the detector 3 (collision prevention unit 5) is disposed on the occipital side and the occipital side of the worker M, the object A, Even when B approaches, it is possible to call attention appropriately.

  Furthermore, since the detector 3 and the alarm device 4 are unitized and become the collision prevention unit 5, the helmet 1 with the collision prevention function can be easily installed simply by attaching the collision prevention unit 5 to the existing and ready-made helmet body 2. Can be configured.

  The embodiment of the present invention has been described in detail above, but the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like without departing from the gist of the present invention, It is included in this invention. For example, in this embodiment, the presence and approach of an object are detected by ultrasonic waves. However, the presence and approach of an object are detected by infrared rays or magnetism according to the target object and the surrounding environment, and the approach is detected. The speed may be calculated. Moreover, although vibration is output as an alarm, a bell may be sounded, a flash may be emitted, or a plurality of these may be output. Further, the alarm device 4 may be directly attached to the body of the worker M without using the detector 3 and the alarm device 4 as the collision prevention unit 5. Alternatively, by providing the alarm device 4 inside the helmet body 2, the alarm device 4 may be brought into contact with the head so that vibration can be more easily detected.

1 Helmet with collision prevention function 2 Helmet body 3 Detector (detection means)
31 Ultrasonic detection unit 32 Speed calculation unit 4 Alarm (alarm means)
41 Determination unit 42 Vibrator 5 Collision prevention unit
M Worker (person)
A laying thing (object)
B Crane hook (object)

Claims (3)

A helmet body worn by a person,
A detecting means disposed on the helmet body for detecting an approaching speed to an object;
An alarm means for outputting an alarm when the approach speed detected by the detection means is a predetermined value or more;
A helmet with an anti-collision function, characterized by comprising:   The helmet with a collision prevention function according to claim 1, wherein the alarm means outputs vibration as the alarm.   The helmet with a collision prevention function according to claim 1, wherein the detection unit is disposed on the helmet body so as to be positioned on a back of the head of the person wearing the helmet body.

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