JP4172720B1 - Riding and working helmets - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a riding helmet that achieves both a stable contact state with a wearer's entire head and good air permeability.
SOLUTION: High air permeability, high elastic deformation, and high impact buffering are formed by connecting a front net fabric and a back net fabric knitted in a net organization with a connecting yarn made of monofilament yarn so as to maintain a constant interval. The cushioning interior material 5 is formed using the three-dimensional mesh ground 30 having the material.
[Selection] Figure 1

Description

  The present invention relates to a riding helmet and a working helmet using a three-dimensional mesh ground by double raschel knitting as an interior material, which has excellent body pressure dispersibility and high breathability in both the thickness direction and the surface direction of the material. About.

    Helmets are available in full-scale and simple structures. The former is a so-called riding helmet, and it is made of a solid structure that can withstand impact with a large amount of energy. On the other hand, the latter is called a so-called work helmet (including bicycle commute), and is designed to assume a relatively light impact. Both differ greatly in the construction of the interior as well as the strength of the cap shell, and each has its own problems.

    A riding helmet is usually made of a reinforced resin cap shell that can withstand a predetermined impact test, a foamed resin liner as an impact absorbing member that is fixedly lined along the inner wall surface of the cap shell, and further It has a three-layer structure with a cushioning interior material for enhancing the wearability loaded inside. The foamed resin liner can absorb impact energy by buckling, and the cushioning interior material can absorb impact energy by deformation. In addition, in order for these members to exhibit a predetermined function, it is necessary that the wearer's head and these members are in stable contact with each other over a wide area.

    The cushioning interior material is mainly made of a soft foamed resin material such as sponge wrapped in a soft mesh or the like, and there are some which can be removed and washed. The foam resin liner is used not only as a shock absorber but also for the purpose of utilizing its thermal insulation function, and it has a function of blocking heat by direct sunlight on the cap shell shell and a cold protection function in the cold season. Handle. Also, cushioning interior materials are responsible for the same function depending on different materials.

    On the other hand, most work helmets are provided with an inner band made of a soft resin that is stretched in a state where a gap is secured between the reinforced resin cap shell and the cap shell. The interior band of the working helmet is formed in an annular shape along the inside of the opening of the cap shell for receiving the human head, and ensures an interval between the human head and the periphery of the cap shell. The member and the annular member are arranged so as to be connected in a cross shape or a radial shape, and include a connecting member that secures a vertical distance between the human head and the cap shell.

    The annular members in the work helmet are separated in a state of overlapping each other on the occipital side, and the overlapped portion is provided with a step-by-step through hole and a headed projection that is inserted into the through hole and latched. By selecting the through hole into which the headed projection is inserted, the peripheral length can be adjusted and adapted to the human head circumference.

About the said helmet for riding, the problem that it is easy to accumulate heat inside because of the structure and wearing a helmet especially in the summer has been pointed out for a long time. Therefore, many improvement proposals have been made for this problem.
JP-A-7-3516 JP-A-9-105014 Japanese Patent Laid-Open No. 10-8320 Japanese Patent Laid-Open No. 10-1668639 JP 2005-325461 A

  In order to refer to the concept of problem solving in the above-mentioned conventional proposal in a typical manner, the concept of forced ventilation using positive pressure or negative pressure by traveling wind or air source of a motorcycle or the like is adopted (Patent Documents 1 and 4). 5), cushion pads are arranged in a dispersed manner and gaps are formed between them (see Patent Document 3), metal wires are formed in a coil shape, and these are arranged or juxtaposed to provide a cushioning interior material. Or various things, such as what is used as a part of buffer material (refer patent document 2).

    In the case of adopting the concept of forced ventilation, in order to ensure air circulation, a part of the foamed resin liner or cushioning interior material, which is an impact absorbing member, is cut out into a branched groove shape, and the cutout part is aligned correctly. The wind is taken in, communicated, and finally discharged outside the helmet. Helmets employing this method have the problem that the foaming resin liner or cushioning interior material is in the form of an island if it is divided by a branch groove, and the manufacturing process must be extremely complicated. . In addition, from the viewpoint of the advantage that forced ventilation has on the wearer, a feeling of local cooling is felt only in the part corresponding to the branch groove of the head, but the feeling of being uncomfortable and cool as a whole is rare.

    The cushion pad distributed in the helmet has a natural feeling of coolness, but there is a problem of the complexity of the manufacturing process as described above, and if the gap between the cushion pad and the cushion pad is too wide, While the feeling increases, problems arise in terms of safety and wearing feeling. In addition, materials that use coiled metal wires as part of the cushion pad are considered to have excellent ventilation and cushioning properties, but due to the nature of the material, it is difficult to attach to the cap shell. I have to think that the range of use is limited. In addition, as long as it is a metal wire, there is a limit to the elastic deformation range, and when an impact exceeding the elastic deformation range is applied, it is considered that the shock absorbing performance is rapidly lost.

    In addition, to summarize the problems related to the above-mentioned conventional proposals, no matter how much a part of the cushioning interior material such as a cushion pad is in contact with the head of the wearer, Only a partial cooling effect can be obtained, and it can be said that if the contact area between the cushioning interior material and the head of the wearer is reduced, the safety is impaired.

  On the other hand, the work helmet has a structure that receives the impact only with the interior band, and therefore has the following problems in addition to the basic problem that the safety in terms of pressure dispersibility is low compared to the riding helmet. Although it is pointed out, it is characterized by a simple structure by nature, so it seems that no special improvement plan has been proposed, and each wearer is using it while making personal ingenuity. Currently.

    In work helmets, the position of the inner band after the helmet is worn due to the fact that the inner band is a non-stretchable resin band and the peripheral length of the annular member can only be adjusted in stages. It is a problem. For example, even when the chin strap is tightened to an appropriate strength in a normal posture, the position shifts when the helmet moves in front of you and looks up at a high place when taking a downward posture. The helmet will move to the back of the head. In the case of a long-haired wearer, such a positional shift of the helmet occurs particularly noticeably because the hair functions as a kind of sliding member. A situation in which a helmet moves in front of eyes during heavy work involving danger is a problem that cannot be overlooked because an accident can be induced due to wearing the helmet.

    In addition, work helmets are inherently well-ventilated, but in summer outdoor work, skin problems such as sweats and erosions may develop on the skin that touches the interior band. It has been pointed out. Needless to say, this is because the perspiration of the skin portion in contact with the interior band cannot evaporate, resulting in a sweat accumulation state, and the skin becomes unsanitary. As a self-defense measure to prevent the position of the helmet from shifting and sweating, many workers wear a work helmet with a towel wrapped around their heads. It is a well-known fact that the helmet's breathability is lost.

  The present invention is a riding helmet that has improved the problem of sultry, especially in summer use, without sacrificing safety and wearing feeling, and the problem of sweating caused by misalignment in the wearer's head and interior band An object of the present invention is to provide a work helmet with improved safety.

  The present invention adopts the following configuration as means for achieving this object.

The riding helmet according to claim 1 of the present invention has a foamable resin liner mainly for impact absorption and a good wearability on a human head inside a reinforced resin cap shell. In a riding helmet that is loaded with a cushioning interior material whose main purpose is that, at least the cushioning interior material of the foamed resin liner and the cushioning interior material is formed into a net structure and the back By connecting the net fabric with a connecting yarn made of monofilament yarn knitted so as to travel between the front net fabric and the back net fabric, elasticity is provided by the connecting yarn between the front net fabric and the back net fabric. to a three-dimensional mesh locations supported is not 15 mm thickness by flat which is formed in double raschel knitting of a predetermined thickness having air voids was to range from 20 mm It becomes as wood, cushioning interior material consisting of the three-dimensional mesh fabric is formed into hemispherical in combination with one of the means or both means of the heat setting means and the three-dimensional sewing device along the inside of the cap body shell In addition, the cushioning interior material formed in a hemispherical shape includes a plurality of meridian slits distributed and arranged in the head surrounding portion, and the slits are formed on the outer peripheral surface and the inner peripheral surface of the head surrounding portion from inside and outside. An annular elastic band and a sweat absorbing band are provided so as to be sandwiched, and a part of the sweat absorbing band is folded into a slit in a gather shape .

In the riding helmet having the above configuration, at least the cushioning interior material of the foamed resin liner and the cushioning interior material in the cap shell is formed of a three-dimensional mesh. Moreover, this cushioning interior material is formed in a hemispherical shape covering the entire human head. At this time, by using the heat setting means or the three-dimensional sewing means or both means in combination, the cushioning interior material can be reasonably manufactured as having an ideal shape. The three-dimensional mesh ground is a structure in which the front net cloth and the back net cloth, both of which are net structures, are connected by a connecting thread so as to have a predetermined thickness. High pressure dispersibility and non-directional high elastic deformability can be exhibited. Therefore, a riding helmet equipped with a cushioning interior material made of a three-dimensional mesh can stably adapt to the difference in personal shape and size of the wearer's head by elastic deformation of the cushioning interior material. Natural breathability over the entire head is ensured in the state. Moreover, since the impact applied to the specific part of the cap shell is distributed over a wide range by the pressure dispersibility of the cushioning interior material and transmitted to the head, it is possible to prevent damage to the head in the event of an accident. Furthermore, the cushioning interior material includes a plurality of meridian slits dispersedly arranged in the head surrounding portion, and an annular elastic band and a sweat absorbing body so as to sandwich the slits between the outer peripheral surface and the inner peripheral surface of the head surrounding portion. And a part of the sweat-absorbing band is folded in a slit in the slit. As a result, the cushioning interior material can be adapted to a wearer with a small head circumference by an elastic band, and by extending the head circumference part from the inside so as to stretch a part of the sweat absorption band folded in the slit. Can be adapted to wearers with large head circumference. Note that the sweat absorption band itself can exhibit a function of improving skin contact in addition to a sweat absorbing function.

The riding helmet according to claim 2 of the present invention is characterized in that a plurality of spacer blocks made of a three-dimensional mesh cloth are arranged in a scattered manner on the outer peripheral surface of a cushioning interior material made of a three-dimensional mesh cloth.

The riding helmet according to the above configuration can easily secure the space required for safety between the cap shell and the wearer's head by the total thickness of the cushioning interior material and the spacer block, Since the spacer block can be more easily deformed than an integral cushioning interior material, it is possible to improve the feeling of wear and suitability for individual differences in the wearer's head.

The work helmet according to claim 3 of the present invention is mounted on the head in a state where a space is secured between the human head and the cap shell inside the cap shell made of reinforced resin. In the work helmet equipped with the interior band, instead of the interior band, the front netting and the back netting knitted in the net organization were knitted so as to travel between the front netting and the back netting. Thickness by double raschel knitting formed into a flat plate with a predetermined thickness having a ventilation gap elastically supported by the connecting yarn between the front and back net fabrics by connecting with a connecting yarn made of monofilament yarn There the loaded cushioning interior material formed on the hemispherical covering substantially the entire person's head stereoscopic mesh locations range from 15 mm 20 mm as the material, leading in this case The interior interior material is formed in a hemispherical shape along the inner side of the cap shell by using either one of the heat setting means and the three-dimensional sewing means or a combination of both means, and is distributed in the head circumference portion. A plurality of slits in the meridian direction are provided, and a band-shaped elastic band and a sweat absorbing band are provided between the outer peripheral surface and the inner peripheral surface of the head surrounding portion so as to sandwich the slit from inside and outside, and a part of the sweat absorbing band is gathered in the slit. It is characterized by being folded into a shape.

The work helmet has a configuration in which the interior band in the conventional work helmet is replaced with a hemispherical cushioning interior material made of a three-dimensional mesh. Therefore, the cushioning interior material is interposed between the wearer's head and the cap shell, and has a high degree of breathability equivalent to that having an interior band while stably contacting the entire wearer's head. In addition to being able to ensure, it functions to greatly improve safety by dispersing the impact applied to the cap shell over a wide range. The functions of the heat setting means and the three-dimensional sewing means for the three-dimensional mesh ground, the slits formed in the cushioning interior material, the stretch band, and the sweat absorption band are the same as those in the cushioning interior material of the riding helmet.

Working helmet according to claim 4 of the present invention is characterized by dotted arranging a plurality of spacer blocks consisting of three-dimensional mesh fabric on the outer peripheral surface of the cushioning interior material made of solid mesh fabric.

The function of the spacer block in the working helmet is the same as the function of the spacer block in the cushioning interior material of the riding helmet.

  The helmet for riding according to the present invention employs a hemispherical cushioning interior material made of a three-dimensional mesh instead of the conventional cushioning interior material, so that the material of the material can be made while stably contacting the wearer's head. Since it is possible to enjoy the high degree of breathability that is a characteristic, the problem of the riding helmet that is hot and humid in summer use is solved without sacrificing safety and wearing feeling.

  The work helmet according to the present invention adopts a hemispherical cushioning interior material made of a three-dimensional mesh ground instead of the conventional interior band, so that it is possible to maintain the characteristics of the material while stably contacting the entire wearer's head. Because it can enjoy a certain level of breathability, it ensures the same breathability as the interior band due to the lack of impact dispersion capability caused by conventional interior bands, skin diseases due to sweat accumulation, and the problem of positional displacement of the cap shell. While improving, safety is also greatly enhanced by the high pressure dispersibility of the material.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The riding helmet 10 is formed by placing a foamed resin liner 4 and a cushioning interior material 5 in two layers inside a reinforced resin cap body shell 3 (FIG. 1). The cap shell 3 is provided with an air inlet 3A and an air outlet 3B, and a detachable windshield 3C is attached.

  A rotary valve mechanism 7 is incorporated in the air intake port 3A of the cap shell 3, and a drip-proof cover is attached to the air discharge port 3B. The rotary valve mechanism 7 includes a rotary valve body 7A in which a radial through hole 7H is provided in a short resin rod body, and a valve holder 7B that holds the rotary valve body 7A in an openable and closable manner. The flange of the valve holder 7B The portion is overlapped and fixed on the cap shell 3. The rotary valve mechanism 7 can easily open and close the air intake port 3A by rotating the rotary valve body 7A while rubbing it with a fingertip. Further, since the sliding contact area between the rotary valve body 7A and the valve holder 7B is large, the drip-proof effect when closed is excellent.

  The foamed resin liner 4 is formed by integrally molding a hard foamed resin into a hemispherical shape. The foamed resin liner 4 is adhered to the entire inner surface of the cap shell 3 with a resin adhesive.

  The cushioning interior material 5 is integrally formed in a hemispherical shape using a three-dimensional knit fabric 30 having a double raschel knitting thickness of about 20 mm as a material, and is fitted inside the foamed resin liner 4 by friction. That is, the cushioning interior material 5 is detachable. A pad 8 in which a soft foamed resin is covered with a soft net is disposed on the inner side of the lower rear edge of the cap shell 3 so that the cushioning interior material 5 can be positioned. An edge cloth for adjusting the appearance is attached to the end surface portion of the cushioning interior material 5, and a sweat absorbing pad 6 is superimposed on the frontal head of the cushioning interior material 5 via a surface fastener. In addition, when the cap shell 3 does not have the air intake port 3A, it is preferable not to attach the edge cloth 5A.

  The cushioning interior material 5 in the riding helmet 10 can directly exhibit the characteristics of the material. Therefore, the three-dimensional mesh ground 30 as a material will be briefly described (FIGS. 2 to 4).

The three-dimensional mesh ground 30 is composed of a front net cloth 31, a back net cloth 33, and a connecting thread 32 having through holes H arranged in an orderly manner. In addition to polyester, PET, PTT, PBT, Ny, synthetic fiber, synthetic fiber, and natural fiber are used for the yarn constituting the three-dimensional mesh base 30. The characteristic structure of the three-dimensional mesh ground 30 is a structure in which the connecting yarns 32 are made to come and go in a three-dimensional manner so as to maintain a constant distance between the front net cloth 31 and the back net cloth 33 . Note that only monofilament yarn is used for the connecting yarn 32.

As a result of having the above-described structure, the three-dimensional mesh fabric 30 has a gap that allows air permeability between the front net fabric 31 and the back net fabric 33 (FIG. 3), and in the thickness direction K2 of the three-dimensional knit fabric 30 In addition, extreme air permeability can be exhibited in the direction K1 along the plane direction within the thickness of the three-dimensional mesh ground 30 and also in the oblique direction K3. That is, it is non-directional with respect to ventilation.

Further, the three-dimensional mesh ground 30 has a high support force with respect to the external force F1 applied from the thickness direction, the external force F2 applied from the surface direction, and the external force F3 applied from the oblique direction F3, and a specific elastic recovery force similar to muscle elasticity ( 4 (A), (B), (C)), exhibit high body pressure dispersibility and shock buffering properties. Such a three-dimensional mesh ground 30 can be obtained by specifying Fusion (registered trademark) of Asahi Kasei Fibers Corporation. There are various combinations of the knit form, color tone, and thickness of the front net cloth 31 and the back net cloth 33 , and in the present invention, the knit form that is soft to the touch is made of polyester having a thickness of about 15 mm to 20 mm. Is preferably used. In addition, although the thickness of the three-dimensional mesh ground 30 is supplied in the range from 2 millimeters to 20 millimeters, when a desired thickness is not available, it can be used in an overlapping manner.

  The cushioning interior material 5 in the riding helmet 10 is a hemisphere along the inside of the cap shell from the one-dimensional mesh ground 30 that is continuous by using either one of the heat-setting means and the three-dimensional sewing means or a combination of both means. Can be formed into a shape. (FIGS. 5 and 6).

  When heat-setting the cushioning interior material 5 (FIGS. 5A and 5B), for example, a three-dimensional mesh ground 30 cut into a large circular outer shape S1 is sandwiched between the convex mold 35 and the concave mold 34. Thus, hot air or steam is blown from the air supply hole IN to form a hemispherical cushioning interior material 5. In addition, a heater can be charged and set in the convex mold 35 and the concave mold 34.

  Further, in the case of three-dimensional sewing, the three-dimensional mesh ground 30 is cut into a semispherical approximate developed shape S2 and the end surface attached portions G are sewn to form the semispherical cushioning interior material 5. Yes (FIGS. 6A and 6B). It should be noted that by using the heat setting means and the solid sewing means in combination, a higher degree of molding is possible.

  The work helmet 20 is formed by loading the cushioning interior material 5 made of the three-dimensional mesh ground 30 into the inside of the cap body shell 3 (FIG. 7). A chin string 3F is attached to the cap shell 3.

  The cushioning interior material 5 is formed by attaching a stretchable band 9, a sweat absorbing band 12 and a number of spacer blocks 5B to a hemispherical mesh ground 30 formed by using a combination of three-dimensional sewing means and heat setting means ( 7 to 9).

  A plurality of slits 5D in the meridian direction are formed in the cushioning interior material 5 so as to be dispersedly arranged in the head surrounding portion. The elastic band 9 is a so-called flat rubber band, is attached so as to surround the head surrounding portion of the cushioning interior material 5 from the outside, and functions to tighten the head surrounding portion. Further, the sweat absorbing band 12 is, for example, a towel cloth formed in an annular shape, and is disposed inside the head surrounding portion facing the elastic band 9 via a hook-and-loop fastener. At this time, a part of the sweat absorption band 12 is continuous in a state of being gathered in each slit 5D (FIG. 9).

  The spacer blocks 5B are formed by cutting the three-dimensional mesh ground 30 into a square shape or a sector shape, and are bonded so as to be scattered mainly in the head surrounding portion and the head top portion. Each spacer block 5B is dotted with a rubber-based non-slip agent B.

  The cushioning interior material 5 in the working helmet 20 is held in the cap shell 3 by the frictional force of the non-slip agent B of the spacer block 5B in a state in which the cushioning interior material 5 is forcibly pushed into the cap shell 3. When the helmet 20 is worn, it is possible to stably adapt to the wearer's head by the easy deformation of the spacer block 5B, the expansion and contraction of the elastic band 9, and the expansion and contraction of the gathered portion of the sweat absorbing band 12. it can.

  The configuration of the cushioning interior material 5 in the work helmet 20 can be applied to the riding helmet 10 as it is.

It is a longitudinal section showing an embodiment of a riding helmet. It is a schematic explanatory drawing of the raw material used for the said embodiment. It is a schematic cross section of the raw material used for the said embodiment. It is operation | movement explanatory drawing of the raw material used for the said embodiment. It is a schematic explanatory drawing of the shaping | molding method of the raw material used for the said embodiment. It is a schematic explanatory drawing of another shaping | molding method of the raw material used for the said embodiment. It is a longitudinal cross-sectional view which shows embodiment of a working helmet. It is a perspective view of the cushioning interior material in the embodiment. It is a bottom view of the cushioning interior material in the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Helmet for riding 20 Helmet for work 30 Three-dimensional mesh ground 31 Front net ground 32 Connecting thread
33 Back net 32 Connection thread 3 Cap shell 3A Air intake 3B Air outlet 4 Foamed resin liner 5 Cushioned interior material 5B Spacer block 5D Slit 7 Rotary valve mechanism 7A Rotary valve body 7B Valve holder 9 Stretch band 12 Sweat absorption band

Claims (4)

Inside the cap shell shell made of reinforced resin is loaded with a foam resin liner whose main purpose is shock absorption and a cushioning interior material whose main purpose is to improve wearability on the human head. In the riding helmet,
At least the cushioning interior material of the foamed resin liner and the cushioning interior material moves between the front netting and the back netting between the front netting and the back netting knitted in the net organization. By connecting with a connecting yarn made of monofilament yarn knitted into the base, it is formed into a flat plate with a predetermined thickness having a ventilation gap elastically supported by the connecting yarn between the front netting and the back netting. it is not 15 mm thickness by double Russell organized become as a material a three-dimensional mesh land in the range of 20 mm was,
The cushioning interior material made of the three-dimensional mesh is formed in a hemispherical shape along the inside of the cap shell by using either one or both of heat setting means and three-dimensional sewing means. ,
The cushioning interior material formed in a hemispherical shape includes a plurality of meridian slits distributed and arranged in the head surrounding portion, and sandwiches the slits from the inside and the outside between the outer peripheral surface and the inner peripheral surface of the head surrounding portion. A riding helmet comprising an annular elastic band and a sweat absorbing band, wherein a part of the sweat absorbing band is folded into a slit in the slit. 2. The riding helmet according to claim 1, wherein a plurality of spacer blocks made of the three-dimensional mesh cloth are dotted and arranged on an outer peripheral surface of the cushioning interior material made of the three-dimensional mesh cloth. 3. In a working helmet provided with an interior band for mounting on the head in a state where a gap is secured between the human head and the cap shell shell inside the cap shell made of reinforced resin,
Instead of the interior band, the front net fabric and the back net fabric knitted in a net organization are connected with a connecting yarn made of monofilament yarn knitted so as to travel between the front net fabric and the back net fabric. By doing so, the thickness by the double raschel knitting formed into a flat plate shape having a predetermined thickness having a ventilation gap elastically supported by the connecting thread between the front net cloth and the back net cloth is 15 to 20 mm. Cushioned interior material formed into a hemispherical shape covering the entire head of a person using a three-dimensional mesh ground in the range of
The cushioning interior material made of the three-dimensional mesh is formed in a hemispherical shape along the inside of the cap shell by using one or both of heat setting means and three-dimensional sewing means. ,
The cushioning interior material includes a plurality of meridian slits dispersedly arranged in the head surrounding portion, and a belt-shaped stretch band and sweat absorbing so as to sandwich the slit from the inside and outside between the outer peripheral surface and the inner peripheral surface of the head surrounding portion. A work helmet, comprising: a band, wherein a part of the sweat absorption band is folded in a gather shape in the slit. Working helmet according to claim 3, wherein the dotted arranging a plurality of spacer blocks consisting of the three-dimensional mesh fabric on the outer peripheral surface of the cushioning interior material consisting of the three-dimensional mesh fabric.

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