JP2002339138A - Helmet for construction work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a helmet for construction work making the front oblique upper direction and oblique left and right directions easily visible and raising the safety of work. SOLUTION: This helmet for construction work is characterized by composing a visor and parts in the oblique upper direction and oblique left and right directions in the vicinity of the visor in the whole helmet of a light-transmitting material and providing a visibility enlarging area. The helmet is preferably composed so as to prepare the whole of the helmet from the light-transmitting material and provide a light-nontransmitting layer on the front surface or the back surface of the helmet except the visibility enlarging area. The light- nontransmitting layer is preferably formed of each of light-nontransmitting coatings, plastic sheets, foamed plastic sheets, nonwoven fabrics, etc. A light- transmission inhibitor is preferably compounded in the light-transmitting material or a part in the oblique upper direction and oblique left and right directions in the front side part in a state of the helmet worn in the reversely directed state of the front and rear may be notched to provide the visibility enlarging area and a band for wearing the helmet may be composed so as to be mounted avoiding the visibility enlarging area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an obliquely upward front direction,
Also, the present invention relates to a construction helmet that facilitates work and surrounding safety confirmation, for example, when driving a construction machine, by expanding a field of view in a diagonal left-right direction.

[0002]

2. Description of the Related Art As is well known, a construction helmet is provided with a sunshade and a face protection eave on a front edge thereof, and the inside of the helmet is fixed in a state where the helmet is mounted, and the impact force is reduced. Mounting band is installed.

[0003]

However, since the conventional helmet is entirely made of a light-impermeable material, the eaves and the vicinity thereof are obliquely upward in the forward direction and in the oblique left and right directions. He narrowed his field of view. However, even if the field of view in the obliquely forward and upward direction is poor, there is no particular inconvenience for a general worker who mainly works while looking at a direction below the horizontal.

However, for example, when operating various construction machines or engaging in construction work of a high structure,
It is necessary to look obliquely upward and to pay attention to the situation in the diagonal left and right directions. In such a case, if the safety is not sufficiently confirmed due to the narrow view, the risk of causing an unexpected accident increases. However, for general workers, such circumstances are the same, though to a varying degree.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a construction helmet capable of improving the reliability and safety of work by facilitating obliquely forward and obliquely upward and oblique left and right directions.

[0006]

In order to achieve the above object, a construction helmet according to the present invention is characterized in that, of the entire helmet, the eaves and the vicinity thereof, which are obliquely upward and obliquely left and right, are transparent. It is characterized in that a view extension area is provided by being made of a material. Then, the entire helmet may be made of a light-transmissive material, and an opaque layer may be provided on the front surface or the back surface of the helmet except for the extended field of view. This opaque layer may be formed using a paint, a plastic sheet, a foamed plastic sheet, or a nonwoven fabric. Further, a light-transmitting agent for suppressing glare may be added to the light-transmitting material. Alternatively, in the state of "upside down" with the front side with the eaves facing the back side of the head, a part of the front side of the helmet in the obliquely upward direction and in the diagonal left and right direction is cut out to provide a view extension area. At the same time, a configuration may be adopted in which the helmet mounting band is attached so as to avoid the extended field of view.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a construction helmet (hereinafter simply referred to as a helmet) according to the present invention will be described below with reference to the drawings. FIG. 1 is a partially broken perspective view of a helmet A1 according to an embodiment of the present invention.

A mounting band also serving as a shock absorbing member is attached to the inside of the helmet A1, but there is no special feature in the configuration of this band. The description and illustration are omitted.

The helmet A1 has a substantially hemispherical shell-shaped main body 1 for protecting the upper half of the head and an eave 2 projecting from the front edge of the main body, like a well-known ordinary helmet. It is made of a transparent hard plastic material by injection molding. The type of the hard plastic may be appropriately selected from various known types having impact resistance and good transparency according to the application.

In the helmet A1, as shown by the phantom line in FIG. 1, a portion of the eaves 2 and a part of the vicinity of the eaves in an obliquely upward direction and in an oblique left and right direction are defined as a view extension area a. As will be described later, the helmet A1 leaves only a portion of the extended field of view a as it is translucent, and performs a light-shielding process on a remaining portion that is inconvenient when light is transmitted.

As described above, first, the entire helmet A1 is made of a transparent material, and then the light shielding process is applied to the portion other than the visibility extension area a, so that the increase in the manufacturing cost of the helmet A1 is considerably suppressed. You can do it.

First, a specific method of manufacturing the helmet A1 is as follows.
The whole is injection-molded using a hard plastic having excellent transparency and impact resistance. Alternatively, another well-known molding method may be used. After that, except for the visibility extension area a,
The opaque layer 3 is formed on the entire outer surface or inner surface of the helmet A1.

In this embodiment, a method of applying an opaque paint is used to form the opaque layer 3. However, instead of the paint, an opaque plastic sheet or a foamed plastic sheet or felt having a cushioning property may be attached to the inner surface of the main body 1.

Since the eaves 2 have one of its essential roles to avoid glare, the transparent plastic used as the material of the helmet A1 includes, for example, a coloring agent used for sunglasses or the like. A permeation suppressant may be added.

In this case, the helmet A1 is so-called two-stage injection molding in which plastic is first injected into a cavity for forming the eaves 2, and then plastic is injected into a cavity for forming the main body 1. If the method is adopted, it is sufficient that the permeation suppressant is used only in the portion of the eaves 2.
Alternatively, a so-called “insert molding method” in which the transparent plastic eaves 2 previously molded and used as an insert material for molding the main body 1 can be employed.

FIG. 2 shows a helmet A2 according to another embodiment of the present invention. This helmet A2 is
With the front side with the eaves 2 facing the back of the head in the “upside-down” state, of the front part (the left part in FIG. 2) of the helmet A2, the view in the diagonally upward direction and the diagonal left and right direction is changed. By cutting out part of the obstruction, a view extension area b indicated by a virtual line in the figure is formed.

And, as a matter of course, no member such as a wearing band (not shown) that obstructs the field of view is located in the field of view expansion area b.

The helmet A2 made in this manner is provided with the eaves 2
If the emphasis is on ensuring a wider field of view for safe work and accident prevention than anti-glare and face protection effects,
For example, it is suitable for use when operating a crane truck. Usually, the eaves 2 may be worn in a normal state with the eaves 2 facing forward.

[0019]

As is apparent from the above description, the work helmet according to the present invention has excellent practical effects as listed below. (A) Conventionally, visibility in obliquely upward and forward and oblique left and right directions, which is difficult to see because of being obstructed by an eave or the like, can be secured. (B) Therefore, the occurrence of careless accidents due to a narrow view can be significantly reduced. (C) In the manufacturing process of providing an opaque layer, if necessary, the coloring of this layer can be changed variously, and characters and patterns can be easily transferred and printed. (D) Thereby, it is possible to easily identify the user of the helmet, use the helmet as an advertisement / promotion medium, and the like. (E) If the helmet is configured to be “upside down”, the field of view can be more reliably expanded together with the provision of the field of view expansion.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing one embodiment of a work helmet according to the present invention.

FIG. 2 is a perspective view showing a working helmet according to another embodiment of the present invention.

[Explanation of symbols]

 A1, A2 Helmet 1 Body 2 Eaves 3 Opaque layer a, b Field of view extension

Claims (5)

[Claims] 1. A construction helmet characterized by providing a visibility extension area by forming a portion of the entire helmet in an obliquely upward direction and an obliquely leftward and rightward direction in the eaves and the vicinity thereof with a translucent material. . 2. The construction helmet according to claim 1, wherein the entire helmet is made of a light-transmissive material, and an opaque layer is provided on a front surface or a back surface of the helmet except for an extended field of view. 3. The construction helmet according to claim 2, wherein the opaque layer is made of a paint, a plastic sheet, a foamed plastic sheet, or a nonwoven fabric. 4. The construction helmet according to claim 1, wherein a light transmission suppressing agent for suppressing glare is mixed with the light transmitting material. 5. The helmet with the front side with the eaves facing the back of the head in an “upside-down” state, in which a part of the front side of the helmet is cut off diagonally upward and diagonally right and left to extend the field of view. Along with the area, the helmet wearing band,
A construction helmet characterized by being mounted so as to avoid this extended range of visibility.